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Xin C, Sun H, Yao J, Wang B, Yu X, Tang Y. Designing ultrathin Fe doped Ta 2O 5-x nanobelts for highly enhanced ammonia photosynthesis. J Colloid Interface Sci 2024; 669:477-485. [PMID: 38723536 DOI: 10.1016/j.jcis.2024.04.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/27/2024]
Abstract
Solar-light photosynthesis of ammonia form N2 reduction in ultrapure water over the artificial photocatalysts is attractive but still challenging compared with Haber-Bosch process. In this work, ultrathin Fe-Ta2O5-x nanobelts were fabricated via the controllable solvothermal process for ammonia photosynthesis. The formed oxygen vacancies and Fe doping narrowed their bandgap energies and promoted the carriers' separation and transfer for Fe-Ta2O5-x nanobelts. In addition, Fe doping also resulted in the reduced working functions of the samples, indicating a weaker electron binding restriction and stronger separation and transfer of photo-induced carriers. The experimental results showed that Fe-Ta2O5-x nanobelts showed remarkably enhanced photocatalytic ammonia production performance under simulated sunlight irradiation, and the relevant ammonia production rate reached approximately 3030.86 μM g-1 h-1, which was 9.63 times of pristine Ta2O5-x and 491.0 times of commercial Ta2O5, and a relatively stable photocatalytic ammonia production performance under simulated sunlight irradiation for Fe-Ta2O5-x nanobelts. Meanwhile, it was also found that Fe doping has great influences on the photocatalytic performance under visible light and simulated sunlight irradiation, mainly because of their suitable bandgap energies and enhanced solar-light harvesting capacity. Current work indicates the great potentials of ultrathin tantalum-based functional materials for high-efficiency ammonia photosynthesis.
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Affiliation(s)
- Changhui Xin
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Hezheng Sun
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Jiaxin Yao
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Bin Wang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China
| | - Xin Yu
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China.
| | - Yanting Tang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, School of Energy Science and Technology, Henan University, Zhengzhou 450046, China.
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2
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Tang C, Rao H, Li S, She P, Qin JS. A Review of Metal-Organic Frameworks Derived Hollow-Structured Photocatalysts: Synthesis and Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2405533. [PMID: 39212632 DOI: 10.1002/smll.202405533] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2024] [Revised: 08/18/2024] [Indexed: 09/04/2024]
Abstract
Photocatalysis is a most important approach to addressing global energy shortages and environmental issues due to its environmentally friendly and sustainable properties. The key to realizing efficient photocatalysis relies on developing appropriate catalysts with high efficiency and chemical stability. Among various photocatalysts, Metal-organic frameworks (MOFs)-derived hollow-structured materials have drawn increased attention in photocatalysis based on advantages like more active sites, strong light absorption, efficient transfer of pho-induced charges, excellent stability, high electrical conductivity, and better biocompatibility. Specifically, MOFs-derived hollow-structured materials are widely utilized in photocatalytic CO2 reduction (CO2RR), hydrogen evolution (HER), nitrogen fixation (NRR), degradation, and other reactions. This review starts with the development story of MOFs, the commonly adopted synthesis strategies of MOFs-derived hollow materials, and the latest research progress in various photocatalytic applications are also introduced in detail. Ultimately, the challenges of MOFs-derived hollow-structured materials in practical photocatalytic applications are also prospected. This review holds great potential for developing more applicable and efficient MOFs-derived hollow-structured photocatalysts.
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Affiliation(s)
- Chenxi Tang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Heng Rao
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Shuming Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
| | - Ping She
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
- Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Jun-Sheng Qin
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, International Center of Future Science, Jilin University, 2699 Qianjin Street, Changchun, 130012, P. R. China
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Sun M, Zhang R, Sun A, Jia X, Liu X, Yu X, Xing Y. Heteropoly blue-modified ultrathin bismuth oxychloride nanosheets with oxygen vacancies for efficient photocatalytic nitrogen fixation in pure water. J Colloid Interface Sci 2024; 677:610-619. [PMID: 39116559 DOI: 10.1016/j.jcis.2024.07.234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 07/14/2024] [Accepted: 07/30/2024] [Indexed: 08/10/2024]
Abstract
Photocatalytic nitrogen reduction is a promising green technology for ammonia synthesis under mild conditions. However, the poor charge transfer efficiency and weak N2 adsorption/activation capability severely hamper the ammonia production efficiency. In this work, heteropoly blue (r-PW12) nanoparticles are loaded on the surface of ultrathin bismuth oxychloride nanosheets with oxygen vacancies (BiOCl-OVs) by electrostatic self-assembly method, and a series of xr-PW12/BiOCl-OVs heterojunction composites have been prepared. Acting as a robust support, ultrathin two-dimensional (2D) structure of BiOCl-OVs inhibits the aggregation of r-PW12 nanoparticles, enhancing the interfacial contact between r-PW12 and BiOCl. More importantly, the existence of oxygen vacancies (OVs) provides abundant active sites for efficient N2 adsorption and activation. In combination of the enhanced light absorption and promoted photogenerated carriers separation of xr-PW12/BiOCl-OVs heterojunction, under simulated solar light, the optimal 7r-PW12/BiOCl-OVs exhibits an excellent photocatalytic N2 fixation rate of 33.53 µmol g-1h-1 in pure water, without the need of sacrificial agents and co-catalysts. The reaction dynamics is also monitored by in situ FT-IR spectroscopy, and an associative distal pathway is identified. Our study demonstrates that construction of heteropoly blues-based heterojunction is a promising strategy for developing high-performance N2 reduction photocatalysts. It is anticipated that combining of different defects with heteropoly blues of different structures might provide more possibilities for designing highly efficient photocatalysis systems.
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Affiliation(s)
- Mingliang Sun
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Ruyu Zhang
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Ao Sun
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Xiaowei Jia
- College of Sciences, Hebei North University, Zhangjiakou 075000, PR China.
| | - Xianchun Liu
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China.
| | - Xiaodan Yu
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Yan Xing
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China.
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Zhang H, Zhou W, Hu L, Guo Y, Lu Y, Feng J. La doped-Fe 2(MoO 4) 3 with the synergistic effect between Fe 2+/Fe 3+ cycling and oxygen vacancies enhances the electrocatalytic synthesizing NH 3. J Colloid Interface Sci 2024; 677:264-272. [PMID: 39094487 DOI: 10.1016/j.jcis.2024.07.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Revised: 07/22/2024] [Accepted: 07/28/2024] [Indexed: 08/04/2024]
Abstract
The electrocatalytic nitrogen reduction reaction (NRR) is a crucial process in addressing energy shortages and environmental concerns by synthesizing the NH3. However, the difficulty of N2 activation and fewer NRR active sites limit the application of NRR. Therefore, the NRR performance can be improved by rapid electron transport paths to participate in multi-electron reactions and N2 activation. Doping with transition metal element is a viable strategy to provide electrons and electronic channels in the NRR. This study focuses on the synthesis of Fe2(MoO4)3 (FeMo) and x%La-doped FeMo (x = 3, 5, 7, and 10) using the hydrothermal method. La-doping creates electron transport channels Fe2+-O2--Fe3+ and oxygen vacancies, achieving an equal molar ratio of Fe2+/Fe3+. This strategy enables the super-exchange in Fe2+-O2--Fe3+, and then enhances electron transport speed for a rapid hydrogenation reaction. Therefore, the synergistic effect of Fe2+/Fe3+ cycling and oxygen vacancies improves the NRR performance. Notably, 5%La-FeMo demonstrates the superior NRR performance (NH3 yield rate: 29.6 μg h-1 mgcat-1, Faradaic efficiency: 5.8%) at -0.8 V (vs. RHE). This work analyzes the influence of the catalyst electronic environment on the NRR performance based on the effect on different valence states of ions on electron transport.
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Affiliation(s)
- Hexin Zhang
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Weichi Zhou
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Liangqing Hu
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
| | - Yanming Guo
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Yinpeng Lu
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China
| | - Jing Feng
- Key Laboratory of Superlight Materials & Surface Technology of Ministry of Education, Harbin Engineering University, Harbin 150001, PR China.
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5
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Ali SA, Sarkar S, Patra AK. Solar Light-Driven Molecular Oxygen Activation by BiOCl Nanosheets: Synergy of Coexposed {001}, {110} Facets and Oxygen Vacancies. ACS APPLIED MATERIALS & INTERFACES 2024; 16:38061-38072. [PMID: 38984982 DOI: 10.1021/acsami.4c06647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/11/2024]
Abstract
Single-crystalline BiOCl nanosheets with coexposed {001} and {110} facets, as well as oxygen vacancies, were synthesized using a simple method. These nanosheets have the ability to activate molecular oxygen, producing reactive superoxide radicals (77.8%) and singlet oxygen (22.2%) when exposed to solar light. The BiOCl demonstrated excellent photocatalytic efficiency in producing H2O2 under simulated solar light and in oxidatively hydroxylating phenylboronic acid under blue LED light. Our research highlights the significance of constructing coexposed {001} and {110} facets, as well as oxygen vacancies, in enhancing photocatalytic performance. The BiOCl nanosheets have the capability to produce H2O2 with a solar-to-chemical energy conversion efficiency of 0.11%.
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Affiliation(s)
- Sk Afsar Ali
- Department of Chemistry, University of Kalyani, Kalyani ,West Bengal 741235, India
| | - Sunny Sarkar
- Department of Chemistry, University of Kalyani, Kalyani ,West Bengal 741235, India
| | - Astam K Patra
- Department of Chemistry, University of Kalyani, Kalyani ,West Bengal 741235, India
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6
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Wu S, Lee JK, Zhang Z. Nanometric-Mapping and In Situ Quantification of Site-specific Photoredox Activities on 2D Nanoplates. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2401120. [PMID: 39031107 DOI: 10.1002/smll.202401120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2024] [Revised: 07/06/2024] [Indexed: 07/22/2024]
Abstract
Defective layered bismuth oxychloride (BiOCl) exhibits excellent photocatalytic activities in water purification and environmental remediation. Herein, in situ single-molecule fluorescence microscopy is used to spatially resolve the photocatalytic heterogeneity and quantify the photoredox activities on individual structural features of BiOCl. The BiOCl nanoplates with respective dominant {001} and {010} facets (BOC-001 and BOC-010) are fabricated through tuning the pH of the solution. The corner position of BOC-001 exhibits the highest photo-oxidation turnover rate of 262.7 ± 30.8 s-1 µm-2, which is 2.1 and 65.7 times of those of edges and basal planes, respectively. A similar trend is also observed on BOC-010, which can be explained by the heterogeneous distribution of defects at each structure. Besides, BOC-001 shows a higher photoredox activity than BOC-010 at corners and edges. This can be attributed to the superior charge separation ability, active high-index facets of BOC-001, and its co-exposure of anisotropic facets steering the charge flow. Therefore, this work provides an effective strategy to understand the facet-dependent properties of single-crystalline materials at nanometer resolution. The quantification of site-specific photoredox activities on BiOCl nanoplates sheds more light on the design and optimization of 2D materials at the single-molecule level.
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Affiliation(s)
- Shuyang Wu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jinn-Kye Lee
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Zhengyang Zhang
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
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7
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Li X, Lin H, Jia X, Sun H, Chen S, Cao J. Photoredox coupling of carbon dioxide reduction with tetracycline oxidation using excited-state bismuth and cobalt dual sites over cobalt-tailored bismuth oxychloride. J Colloid Interface Sci 2024; 676:343-354. [PMID: 39032417 DOI: 10.1016/j.jcis.2024.07.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 07/14/2024] [Accepted: 07/15/2024] [Indexed: 07/23/2024]
Abstract
Photocatalytic carbon dioxide (CO2) conversion and simultaneous pollutant oxidation in a single system are promising approaches to mitigate energy and environmental challenges. However, the limited availability of active photocatalyst sites led to slow reaction kinetics and poor selectivity. Current research has predominantly focused on ground-state reactive sites of semiconductors, with less emphasis on active sites in their excited states. Therefore, gaining insights into the active sites in the excited state of semiconductors could provide a significant breakthrough in understanding the photocatalytic reaction mechanism. In this study, cobalt-doped bismuth oxychloride nanosheets containing abundant oxygen vacancies (OVs) were used as a model to investigate the active sites in excited states. These nanosheets were used to integrate CO2 reduction with tetracycline (TC) oxidation. Combining theoretical calculations with in situ characterizations revealed that under excited-state conditions photogenerated electrons transfer from cobalt (Co) dopants to OVs and subsequently to bismuth (Bi) atoms, forming Bi(3-x)+ sites enriched with excited electrons. These excited-electron-rich Bi(3-x)+ sites and electron-deficient Co sites contribute to CO2 reduction and TC oxidation, respectively. This study provides a comprehensive understanding of active sites in the excited state in doped semiconductors at the atomic level, reinforcing their potential for synergistic CO2 reduction and pollutant degradation.
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Affiliation(s)
- Xinyue Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Haili Lin
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Xuemei Jia
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China.
| | - Haoyu Sun
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Shifu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China
| | - Jing Cao
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, PR China.
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8
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Jiang L, Cao W, Li Z, Wang C, Bi H. Interfacial Engineering of Fluorescent Carbon Dots with Metal Oxides for Real-Time Visualization of Oxygen Vacancy Dynamics. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2402827. [PMID: 39017030 DOI: 10.1002/smll.202402827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/03/2024] [Indexed: 07/18/2024]
Abstract
Oxygen vacancy (Vo), as one of the most common surface defects, significantly influence the physiochemical properties of metal oxides. However, it remains a challenge for existing techniques to visualize the evolution of Vo during redox process due to its heterogeneous distribution, small size, and dynamic nature. Herein, the real-time monitoring of such microscopic interfacial events is reported by advantage of the high-contrast fluorescence response of carbon dots (H-CDs) to Vo. The green emissive H-CDs possess a unique disc-shaped structure and exceptional hydrophilicity, allowing their tight adhesion to the surfaces of Vo-rich MgO by simple mixing. Subsequently, a water involved interfacial reaction occurred between H-CDs and Vo, resulting in gradual quenching of the original green emission and simultaneously emergence of bright red fluorescence. Moreover, the spatiotemporal diffusion dynamics and reaction kinetics are investigated by confocal laser scanning microscopy, revealing the time-dependent reorganization and structural heterogeneity at the interface. The finding provides a new toolbox for in situ imaging of Vo-triggered phenomena at a microscopic level, which will be helpful in promoting the rational design of oxide materials.
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Affiliation(s)
- Lei Jiang
- School of Chemistry and Chemical Engineering, Anhui University, 111 Jiulong Road, Hefei, 230601, China
| | - Wenjun Cao
- School of Materials Science and Engineering, Anhui University, 111 Jiulong Road, Hefei, 230601, China
| | - Zijian Li
- School of Materials Science and Engineering, Anhui University, 111 Jiulong Road, Hefei, 230601, China
| | - Chunchang Wang
- School of Materials Science and Engineering, Anhui University, 111 Jiulong Road, Hefei, 230601, China
| | - Hong Bi
- School of Materials Science and Engineering, Anhui University, 111 Jiulong Road, Hefei, 230601, China
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9
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Dong F, Zhu J, Lou J, Chen Z, He Z, Song S, Zhu L, Crittenden JC. Unveiling the Mechanism and Kinetics of Pollutant Attenuation by Free Radicals Triggered from Goethite in Water Distribution Systems. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:12664-12673. [PMID: 38953777 DOI: 10.1021/acs.est.4c04022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2024]
Abstract
Investigating the fate of persistent organic pollutants in water distribution systems (WDSs) is of great significance for preventing human health risks. The role of iron corrosion scales in the migration and transformation of organics in such systems remains unclear. Herein, we determined that hydroxyl (•OH), chlorine, and chlorine oxide radicals are generated by Fenton-like reactions due to the coexistence of oxygen vacancy-related Fe(II) on goethite (a major constituent of iron corrosion scales) and hypochlorous acid (HClO, the main reactive chlorine species of residual chlorine at pH ∼ 7.0). •OH contributed mostly to the decomposition of atrazine (ATZ, model compound) more than other radicals, producing a series of relatively low-toxicity small molecular intermediates. A simplified kinetic model consisting of mass transfer of ATZ and HClO, •OH generation, and ATZ oxidation by •OH on the goethite surface was developed to simulate iron corrosion scale-triggered residual chlorine oxidation of organic compounds in a WDS. The model was validated by comparing the fitting results to the experimental data. Moreover, the model was comprehensively applicable to cases in which various inorganic ions (Ca2+, Na+, HCO3-, and SO42-) and natural organic matter were present. With further optimization, the model may be employed to predict the migration and accumulation of persistent organic pollutants under real environmental conditions in the WDSs.
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Affiliation(s)
- Feilong Dong
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, Peoples Republic of China
| | - Jiani Zhu
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, Peoples Republic of China
| | - Jinxiu Lou
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, Peoples Republic of China
| | - Zefang Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Zhiqiao He
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, Peoples Republic of China
| | - Shuang Song
- College of Environment, Zhejiang University of Technology, Hangzhou 310032, Peoples Republic of China
| | - Lizhong Zhu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou 310058, Peoples Republic of China
| | - John C Crittenden
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
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10
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Wang H, Zhang X, Zhu H, Xiang G. Robust Bi-anchoring carbon dot/BiOCl sheet heterojunction photocatalysts toward superior photocatalytic activity. NANOSCALE 2024; 16:12670-12679. [PMID: 38888799 DOI: 10.1039/d4nr01304b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
BiOCl has attracted much attention due to its robust layered structure, excellent photocatalytic activity and nontoxicity. However, its practical application is hindered by its narrowband UV photoresponse and rapid recombination of photocarriers. Herein, zero-dimensional Bi-anchoring carbon quantum dot (Bi-CD)/two-dimensional BiOCl heterojunction (Bi-CD/BiOCl) photocatalysts are designed and synthesized by a facile hydrothermal method. Under 190-1100 nm broadband light irradiation, the optimized Bi-CD/BiOCl sample exhibits a superb rhodamine B (RhB) degradation rate of nearly 100%, which is 2.3 (1.7) times that of pristine BiOCl (CD/BiOCl). Additionally, the optimized sample exhibits an RhB degradation rate of up to 88.1% even under direct outdoor light and robust durability in water solution. Experimental results combined with DFT calculations reveal that the superior photocatalytic activity arises from the synergetic effects of broader light absorption due to the incorporation of CD, extra hot electron excitation by the localized surface plasmon resonance (LSPR) effect of metallic Bi, and enhanced electron transfer across the heterojunction interface as well as the existence of more oxygen vacancy traps in BiOCl. This work gives insights into the structure and photocatalytic properties of Bi-CD/BiOCl and provides a new strategy for the design and fabrication of robust high-performance photocatalysts under wide spectrum light irradiation.
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Affiliation(s)
- Han Wang
- College of Physics, Sichuan University, Chengdu 610064, China.
| | - Xi Zhang
- College of Physics, Sichuan University, Chengdu 610064, China.
| | - Hongyu Zhu
- College of Physics, Sichuan University, Chengdu 610064, China.
| | - Gang Xiang
- College of Physics, Sichuan University, Chengdu 610064, China.
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11
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Yu C, Dong Y, Zhu X, Feng L, Zang P, Liu B, Dong S, Zhao R, Xu R, Yang P. Oxygen Vacancy Piezoelectric Nanosheets Constructed by a Photoetching Strategy for Ultrasound "Unlocked" Tumor Synergistic Therapy. NANO LETTERS 2024; 24:8008-8016. [PMID: 38912749 DOI: 10.1021/acs.nanolett.4c01656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/25/2024]
Abstract
Piezoelectric dynamic therapy (PzDT) is an effective method of tumor treatment by using piezoelectric polarization to generate reactive oxygen species. In this paper, two-dimensional Cu-doped BiOCl nanosheets with surface vacancies are produced by the photoetching strategy. Under ultrasound, a built-in electric field is generated to promote the electron and hole separation. The separated carriers achieve O2 reduction and GSH oxidation, inducing oxidative stress. The bandgap of BiOCl is narrowed by introducing surface oxygen vacancies, which act as charge traps and facilitate the electron and hole separation. Meanwhile, Cu doping induces chemodynamic therapy and depletes GSH via the transformation from Cu(II) to Cu(I). Both in vivo and in vitro results confirmed that oxidative stress can be enhanced by exogenous ultrasound stimulation, which can cause severe damage to tumor cells. This work emphasizes the efficient strategy of doping engineering and defect engineering for US-activated PzDT under exogenous stimulation.
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Affiliation(s)
- Chenghao Yu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Yushan Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Xingyu Zhu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Lili Feng
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Pengyu Zang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Bin Liu
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Shuming Dong
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Ruoxi Zhao
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
| | - Rongchen Xu
- Department of Stomatology, The Third Medical Center, Chinese PLA General Hospital, Beijing, 100039, China
| | - Piaoping Yang
- Key Laboratory of Superlight Materials and Surface Technology, Ministry of Education, College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
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12
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Sharma M, Sajwan D, Gouda A, Sharma A, Krishnan V. Recent progress in defect-engineered metal oxides for photocatalytic environmental remediation. Photochem Photobiol 2024; 100:830-896. [PMID: 38757336 DOI: 10.1111/php.13959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 05/18/2024]
Abstract
Rapid industrial advancement over the last few decades has led to an alarming increase in pollution levels in the ecosystem. Among the primary pollutants, harmful organic dyes and pharmaceutical drugs are directly released by industries into the water bodies which serves as a major cause of environmental deterioration. This warns of a severe need to find some sustainable strategies to overcome these increasing levels of water pollution and eliminate the pollutants before being exposed to the environment. Photocatalysis is a well-established strategy in the field of pollutant degradation and various metal oxides have been proven to exhibit excellent physicochemical properties which makes them a potential candidate for environmental remediation. Further, with the aim of rapid industrialization of photocatalytic pollutant degradation technology, constant efforts have been made to increase the photocatalytic activity of various metal oxides. One such strategy is the introduction of defects into the lattice of the parent catalyst through doping or vacancy which plays a major role in enhancing the catalytic activity and achieving excellent degradation rates. This review provides a comprehensive analysis of defects and their role in altering the photocatalytic activity of the material. Various defect-rich metal oxides like binary oxides, perovskite oxides, and spinel oxides have been summarized for their application in pollutant degradation. Finally, a summary of existing research, followed by the existing challenges along with the potential countermeasures has been provided to pave a path for the future studies and industrialization of this promising field.
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Affiliation(s)
- Manisha Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, India
| | - Devanshu Sajwan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, India
| | - Ashrumochan Gouda
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, India
| | - Anitya Sharma
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, India
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh, India
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13
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Xia Q, Liu X, Zhou J, Khan A, Zhao S, Li X, Xu A. Activation of H 2O 2-HCO 3- by Ca 2Co 2O 5 for pollutant degradation. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:48450-48459. [PMID: 39031318 DOI: 10.1007/s11356-024-34398-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 07/11/2024] [Indexed: 07/22/2024]
Abstract
The bicarbonate-activated hydrogen peroxide (BAP) system is widely studied for organic pollutant degradation in wastewater treatment. Ca2Co2O5, a heterogeneous catalyst containing multivalent cobalt including Co(II) and Co(III), was herein investigated as a BAP activator, and Acid Orange 7 (AO7) was used as a model pollutant. Ca2Co2O5 exhibited good activation performance. The degradation rate and the initial rate constant of the Ca2Co2O5-activated BAP system were 5.4 and 11.2 times as high as the BAP system, respectively. The removal rate of AO7 reached 90.9% in 30 min under optimal conditions (AO7 20 mg/L, Ca2Co2O5 0.2 g/L, H2O2 1 mM, NaHCO3 5 mM, pH 8.5, 25℃). The Ca2Co2O5 catalyst exhibited good stability and recyclability, retaining 85% of AO7 removal rate in the fifth run. Compared to the BAP system, a lower dosage of H2O2 was required and a higher initial concentration of pollutants allowed for effective degradation in the Ca2Co2O5-BAP system. X-ray photoelectron spectroscopy was used to analyze the catalytic mechanism. The analysis showed that the good catalytic performance of Ca2Co2O5 attributes to its high proportion of oxygen vacancies and Co(III) species, and the presence of Ca. The active species O2•-, •OH, and 1O2 are responsible for the degradation, as indicated by the quenching experiments. The degradation mechanism of AO7 was speculated based on UV-Vis spectral analysis and the identification of degradation intermediates. The azo form, naphthalene and benzoic rings in the AO7 structure are destroyed in the decomposition. This research provides a feasible approach to designing effective and reusable BAP activators for pollutant degradation in wastewater treatment.
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Affiliation(s)
- Qianna Xia
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Xiuying Liu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China.
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, P. R. China.
| | - Jiao Zhou
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Aimal Khan
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Shuaiqi Zhao
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Xiaoxia Li
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
| | - Aihua Xu
- School of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, P. R. China
- Hubei Key Laboratory of Biomass Fibers and Eco-Dyeing & Finishing, Wuhan Textile University, Wuhan, 430200, P. R. China
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14
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Kumar A, Singh P, Nguyen VH, Le QV, Ahamad T, Thakur S, Matsagar BM, Kaya S, Maslov MM, Wu KCW, Nguyen LH, Raizada P. DFT and experimental studies of the facet-dependent oxygen vacancies modulated WS 2/BiOCl-OV S-scheme structure for enhanced photocatalytic removal of ciprofloxacin from wastewater. ENVIRONMENTAL RESEARCH 2024; 250:118519. [PMID: 38382660 DOI: 10.1016/j.envres.2024.118519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 02/09/2024] [Accepted: 02/17/2024] [Indexed: 02/23/2024]
Abstract
The present study explores visible light-assisted photodegradation of ciprofloxacin hydrochloride (CIP) antibiotic as a promising solution to water pollution. The focus is on transforming the optical and electronic properties of BiOCl through the generation of oxygen vacancies (OVs) and the exposure of (110) facets, forming a robust S-scheme heterojunction with WS2. The resultant OVs mediated composite with an optimal ratio of WS2 and BiOCl-OV (4-WS2/BiOCl-OV) demonstrated remarkable efficiency (94.3%) in the visible light-assisted photodegradation of CIP antibiotic within 1.5 h. The CIP degradation using 4-WS2/BiOCl-OV followed pseudo-first-order kinetics with the rate constant of 0.023 min-1, outperforming bare WS2, BiOCl, and BiOCl-OV by 8, 6, and 4 times, respectively. Density functional theory (DFT) analysis aligned well with experimental results, providing insights into the structural arrangement and bandgap analysis of the photocatalysts. Liquid chromatography-mass spectrometry (LC-MS) analysis utilized for identifying potentially degraded products while scavenging experiments and electron paramagnetic resonance (EPR) spin trapping analysis elucidated the S-scheme charge transfer mechanism. This research contributes to advancing the design of oxygen vacancy-mediated S-scheme systems in the realm of photocatalysis, with potential implications for addressing water pollution concerns.
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Affiliation(s)
- Abhinandan Kumar
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Pardeep Singh
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India
| | - Van-Huy Nguyen
- Centre for Herbal Pharmacology and Environmental Sustainability, Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education, Kelambakkam, 603103, Tamil Nadu, India.
| | - Quyet Van Le
- Department of Materials Science and Engineering, Korea University, 145, Anamro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Tansir Ahamad
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Sourbh Thakur
- Department of Organic Chemistry, Bioorganic Chemistry and Biotechnology, Silesian University of Technology, B. Krzywoustego 4, 44-100, Gliwice, Poland
| | - Babasaheb M Matsagar
- Department of Chemical Engineering, National Taiwan University (NTU), No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Savas Kaya
- Department of Chemistry, Faculty of Science, Sivas Cumhuriyet University, 58140, Sivas, Turkey
| | - Mikhail M Maslov
- Nanoengineering in Electronics, Spintronics and Photonics Institute, National Research Nuclear University "MEPhI", Kashirskoe Shosse 31, Moscow, 115409, Russia
| | - Kevin C-W Wu
- Department of Chemical Engineering, National Taiwan University (NTU), No. 1, Sec. 4, Roosevelt Road, Taipei, 10617, Taiwan
| | - Lan Huong Nguyen
- Faculty of Biology and Environment, Ho Chi Minh City University of Industry and Trade (HUIT), 140 Le Trong Tan Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City, Viet Nam
| | - Pankaj Raizada
- School of Advanced Chemical Sciences, Shoolini University, Solan, Himachal Pradesh, 173212, India.
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15
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Xu L, Yu JC, Wang Y. Recent advances on bismuth oxyhalides for photocatalytic CO 2 reduction. J Environ Sci (China) 2024; 140:183-203. [PMID: 38331499 DOI: 10.1016/j.jes.2023.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2023] [Revised: 06/24/2023] [Accepted: 07/01/2023] [Indexed: 02/10/2024]
Abstract
Photocatalytic conversion of CO2 into fuels such as CO, CH4, and CH3OH, is a promising approach for achieving carbon neutrality. Bismuth oxyhalides (BiOX, where X = Cl, Br, and I) are appropriate photocatalysts for this purpose due to the merits of visible-light-active, efficient charge separation, and easy-to-modify crystal structure and surface properties. For practical applications, multiple strategies have been proposed to develop high-efficiency BiOX-based photocatalysts. This review summarizes the development of different approaches to prepare BiOX-based photocatalysts for efficient CO2 reduction. In the review, the fundamentals of photocatalytic CO2 reduction are introduced. Then, several widely used modification methods for BiOX photocatalysts are systematacially discussed, including heterojunction construction, introducing oxygen vacancies (OVs), Bi-enrichment, heteroatom-doping, and morphology design. Finally, the challenges and prospects in the design of future BiOX-based photocatalysis for efficient CO2 reduction are examined.
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Affiliation(s)
- Liangpang Xu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China
| | - Jimmy C Yu
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
| | - Ying Wang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong 999077, China.
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16
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Zhang M, Wang D, Ma H, Wei H, Wang G. Oxygen vacancy based WO 3/SnO 2-x promote electrochemical H 2O 2 accumulation by two-electron water oxidation reaction and toxic uniform dimethylhydrazine degradation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 924:171383. [PMID: 38462003 DOI: 10.1016/j.scitotenv.2024.171383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/22/2024] [Accepted: 02/28/2024] [Indexed: 03/12/2024]
Abstract
The key to constructing an anodic electro-Fenton system hinges on two pivotal criteria: enhancing the catalyst activity and selectivity in water oxidation reaction (WOR), while simultaneously inhibiting the decomposition of hydrogen peroxide (H2O2) which is on-site electrosynthesized at the anode. To address the issues, we synthesized novel WO3/SnO2-x electrocatalysts, enriched with oxygen vacancies, capitalize on the combined activity and selectivity advantages of both WO3 and SnO2-x for the two-electron pathway electrocatalytic production of H2O2. Moreover, the introduction of oxygen vacancies plays a critical role in impeding the decomposition of H2O2. This innovative design ensures that the Faraday efficiency and yield of H2O2 are maintained at over 80 %, with a noteworthy production rate of 0.2 mmol h-1 cm-2. We constructed a novel electro-Fenton system that operates using only H2O as its feedstock and applied it to treat highly toxic uniform dimethylhydrazine (UDMH) from rocket launch effluent. Our experiments revealed a substantial total organic carbon (TOC) removal, achieving approximately 90 % after 120 mins of treatment. Additionally, the toxicity of N-nitrosodimethylamine (NDMA), a byproduct of great concern, was shown to be effectively mitigated, as evidenced by acute toxicity evaluations using zebrafish embryos. The degradation mechanism of UDMH is predominantly characterized by the advanced oxidative action of H2O2 and hydroxyl radicals, as well as by complex electron transfer processes that warrant further investigation.
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Affiliation(s)
- Mengqiong Zhang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China
| | - Dong Wang
- College of Marine Science-Technology and Environment, Dalian Ocean University, No. 52 Heishijiao, Shahekou District, Dalian 116023, PR China
| | - Hongchao Ma
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China
| | - Huangzhao Wei
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, PR China.
| | - Guowen Wang
- School of Light Industry and Chemical Engineering, Dalian Polytechnic University, No. 1 Qinggongyuan, Ganjinzi District, Dalian 116034, PR China.
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17
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Tao X, Zhou X, Li R. Advances in the structural engineering of layered bismuth-based semiconductors for visible light-driven photocatalytic water splitting. Chem Commun (Camb) 2024; 60:5136-5148. [PMID: 38656314 DOI: 10.1039/d4cc00455h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Hydrogen production via the photocatalytic water splitting reaction on semiconductors presents a promising avenue to directly achieve solar energy conversion and storage. Bismuth-based semiconductors with layered structures, a hierarchical arrangement of components stacked in the form of two-dimensional extended layers where the atoms within each layer are typically strongly bonded, while the interactions between the layers are relatively weak, have emerged as an important series of photocatalyst candidates. In this review, we focus on the new emerging layered bismuth-based semiconductors with structures in Sillén, Aurivillius, Sillén-Aurivillius and bismuth chromate systems primarily employed in the photocatalytic water splitting reaction. From a crystal structure-oriented view, we delve into discussions on how the component and unit of a crystal structure influence the intrinsic properties, including light absorption and photogenerated charge transfer and separation, of materials as well as the corresponding photocatalytic performance of the water splitting reaction. The strategies for modulating the ferroelectricity and surface modification of these layered bismuth-based semiconductors are also involved. We also discuss the limitations of these materials accompanied by a forward-looking perspective, and we hope to provide some insights from the view of rational material design and engineering for the fabrication of high-efficiency photocatalytic water splitting systems.
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Affiliation(s)
- Xiaoping Tao
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, P. R. China
| | - Xiaoyuan Zhou
- College of Physics and Center of Quantum Materials and Devices, Chongqing University, Chongqing 401331, P. R. China
| | - Rengui Li
- State Key Laboratory of Catalysis, Dalian National Laboratory for Clean Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, P. R. China.
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18
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Zeng Y, Zhuo Q, Pan J, Lan Y, Dai L, Guan B. Switching reactive oxygen species reactions derived from Mn-Pt anchored zeolite for selective catalytic ozonation. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 347:123747. [PMID: 38460590 DOI: 10.1016/j.envpol.2024.123747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/28/2024] [Accepted: 03/06/2024] [Indexed: 03/11/2024]
Abstract
Rationally switching reactive oxygen species (ROS) reactions in advanced oxidation processes (AOPs) is urgently needed to improve the adaptability and efficiency for the engineering application. Herein we synthesized bimetallic Mn-Pt catalysts based on zeolite to realize the switching of ROS reactions in catalytic ozonation for sustainable degradation of organic pollutants from water. The ROS reactions switched from singlet oxygen (1O2, 71.01%) to radical-dominated (93.79%) pathway by simply introducing defects and changing Pt/Mn ratios. The oxygen vacancy induced by anchoring Mn-Pt species from zeolite external surface (MnPt/H-Beta) to internal framework (MnPt@Si-Beta) exposes more electron-rich Pt2+/Pt4+ redox sites, accelerating the decomposition of O3 to generate •OH via electron transfer and switching ROS reactions. The Mn site acted as a bridge plays a critical role in conducting electrons from organic pollutants to Pt sites, which solidly solves the electron loss of catalysts, facilitating the efficient degradation of pollutants. A 34.7-fold increase in phenol degradation compared with the non-catalytic ozonation and an excellent catalytic stability are achieved by MnPt@Si-Beta/O3. The 1O2-dominated ROS reaction originated from MnPt/H-Beta/O3 exhibits superior performances in anti-interference for Cl-, HCO3-, NO3-, and SO4-. This work establishes a novel strategy for switching ROS reactions to expand the targeted applications of O3 based AOPs for environmental remediation.
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Affiliation(s)
- Yaxiong Zeng
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Qizheng Zhuo
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Jian Pan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yuan Lan
- Zhejiang Zheda Qiushi Property Management Co., Ltd., Logistics Group, Zhejiang University, Hangzhou, 310058, China
| | - Liyan Dai
- College of Chemical and Biological Engineering, Zhejiang University, Hangzhou, 310027, China
| | - Baohong Guan
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
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19
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Wang W, Liu Z, Nie H, Kong B. The direct Z-scheme character and roles of S vacancy in BiOCl/Bi 2S 3-(001) heterostructures for superior photocatalytic activity: a hybrid density functional investigation. Phys Chem Chem Phys 2024; 26:10723-10736. [PMID: 38512329 DOI: 10.1039/d3cp06297j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Given some current speculations and controversies regarding the type of BiOCl/Bi2S3-(001) heterostructure in experiments, it is of great importance to clarify these controversies and further explain the relevant experimental results. In this work, based on first-principles hybrid density functional calculations, it is verified that the BiOCl/Bi2S3-(001) heterostructure is a direct Z-scheme photocatalyst with high photo-generated carrier separation efficiency and strong redox ability that can react with O2 and OH- to produce photocatalytic active species of superoxide ions (˙O2-) and hydroxyl radicals (˙OH), respectively. This is consistent with the experimental findings and explains the excellent photocatalytic performance of the BiOCl/Bi2S3-(001) heterostructure in experiments. Besides, excitingly, it is found that the optical absorption, built-in electric field intensity, interlayer recombination probability, hydrogen evolution reaction ability, and the difference in electron-hole mobility are further enhanced via S vacancy introduction in BiOCl/Bi2S3-(001). Therefore, the significant roles of S vacancy in further improving the photocatalytic properties of the BiOCl/Bi2S3-(001) heterostructure are profoundly revealed. This work can provide valuable theoretical insights for designing the superior direct Z-scheme BiOCl/VS-Bi2S3-(001) heterostructure with promising photocatalytic properties.
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Affiliation(s)
- Wentao Wang
- Guizhou Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China.
| | - Zuoyin Liu
- School of Physics and Astronomy, China West Normal University, Nanchong 637002, China.
| | - Hongwei Nie
- School of Physics and Astronomy, China West Normal University, Nanchong 637002, China.
| | - Bo Kong
- School of Physics and Astronomy, China West Normal University, Nanchong 637002, China.
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20
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Zhou Y, Xu Z, Tang L, Qin J, Lu G, Dong H, Bian Z, Zhu M. Internal Electric Field Facilitates Facet-Dependent Photocatalytic Cl - Utilization on BiOCl in High-Salinity Wastewater for Ammonium Removal. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:6049-6057. [PMID: 38525996 DOI: 10.1021/acs.est.4c00546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
High Cl- concentration in saline wastewater (e.g., landfill leachate) limits wastewater purification. Catalytic Cl- conversion into reactive chlorine species (RCS) arises as a sustainable strategy, making the salinity profitable for efficient wastewater treatment. Herein, aiming to reveal the structure-property relationship in Cl- utilization, bismuth oxychloride (BiOCl) photocatalysts with coexposed {001} and {110} facets are synthesized. With an increasing {001} ratio, the RCS production efficiency increases from 75.64 to 96.89 μg L-1 min-1. Mechanism investigation demonstrates the fast release of lattice Cl- as an RCS and the compensation of ambient Cl-. Correlation analysis between the internal electric field (IEF, parallel to [001]) and normalized efficiency on {110} (kRCS/S{110}, perpendicular to [001]) displays a coefficient of 0.86, validating that the promoted carrier dynamics eventually affects Cl- conversion on the open layered structure. The BiOCl photocatalyst is well behaved in ammonium (NH4+-N) degradation ranging from 20 to 800 mg N L-1 with different chlorinity (3-12 g L-1 NaCl). The sustainable Cl- conversion into RCS also realizes 85.4% of NH4+-N removal in the treatment of realistic landfill leachate (662 mg of N L-1 NH4+-N). The structure-property relationship provides insights into the design of efficient catalysts for environment remediation using ambient Cl-.
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Affiliation(s)
- Yuanyi Zhou
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
- Postdoctoral Innovation Practice Base & Guangdong Provincial Key Laboratory of Spine and Spinal Cord Reconstruction, The Fifth Affiliated Hospital of Jinan University (Heyuan Shenhe People's Hospital), Heyuan 517465, China
| | - Zhaofen Xu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Lingfang Tang
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Junhao Qin
- Guangdong Laboratory for Lingnan Modern Agriculture, Guangdong Provincial Key Laboratory of Agricultural & Rural Pollution Abatement and Environmental Safety, College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China
| | - Gang Lu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Haojie Dong
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
| | - Zhenfeng Bian
- MOE Key Laboratory of Resource Chemistry and Shanghai Key Laboratory of Rare Earth Functional Materials, Shanghai Normal University, Shanghai 200234, China
| | - Mingshan Zhu
- Guangdong Key Laboratory of Environmental Pollution and Health, School of Environment, Jinan University, Guangzhou 511443, China
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21
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Zhou Q, Ji Z, Yu H, Lu S, Guo J, Wu C. Photocatalytic Degradation of Tetracycline Hydrochloride Based on the Structure-Property Exploration of BiOCl. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:7078-7086. [PMID: 38514080 DOI: 10.1021/acs.langmuir.4c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
The correlation between structure and properties in the photodegradation reaction of bismuth oxychloride (BiOCl) was explored in this work. Three BiOCl samples with different sizes, morphological structures, and defects were prepared through a hydrothermal method with experimental manipulation. Their structural properties were comprehensively characterized using X-ray diffraction, scanning electron microscopy, transmission electron microscopy, electron spin resonance, X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, and photoluminescence. Taking the photodegradation of tetracycline hydrochloride (TC-HCl) as the probe reaction, we found that high activity could be achieved by decreasing their crystal size and thickness, introducing proper defects in the structure, and assembling the nanosheets to get microball structure. Combined with radical-scavenge experiments and electron spin resonance (ESR) spin-trap spectra, we conclude that ̇O2- was the dominant reactive oxygen species for the degradation reaction. The degradation detailed pathway of TC-HCl was further analyzed using liquid chromatography-mass spectrometry. This work explores the structure-property correlation of BiOCl and provides strategies for the rational design of active photocatalysts for water remediation.
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Affiliation(s)
- Quan Zhou
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Zhefeng Ji
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Hongbo Yu
- Institute of Materials, Ningbo University of Technology, Ningbo 315016, China
| | - Shun Lu
- Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, China
| | - Jianzhong Guo
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
| | - Chunzheng Wu
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, College of Chemistry and Materials Engineering, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China
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22
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Zhou J, Zhu Z, Li Q, Zhang Q, Liu Z, Deng Q, Zhou Z, Li C, Fu L, Zhou J, Li H, Wu K. Fabrication of Heterostructural FeNi 3-Loaded Perovskite Catalysts by Rapid Plasma for Highly Efficient Photothermal Reverse Water Gas Shift Reaction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2307302. [PMID: 37994389 DOI: 10.1002/smll.202307302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/26/2023] [Indexed: 11/24/2023]
Abstract
Metal-semiconductor heterostructured catalysts have attracted great attention because of their unique interfacial characteristics and superior catalytic performance. Exsolution of nanoparticles is one of the effective and simple ways for in-situ growth of metal nanoparticles embedded in oxide surfaces and their favorable dispersion and stability. However, both high-temperature and a reducing atmosphere are required simultaneously in conventional exsolution, which is time-consuming and costly, and particles often agglomerate during the process. In this work, Ca0.9Ti0.8Ni0.1Fe0.1O3-δ (CTNF) is exposed to dielectric blocking discharge (DBD) plasma at room temperature to fabricate alloying FeNi3 nanoparticles from CTNF perovskite. FeNi3-CTNF has outstanding catalytic activity for photothermal reverse water gas shift reaction (RWGS). At 350 °C under full-spectrum irradiation, the carbon monoxide (CO) yield of FeNi3-CTNF (10.78 mmol g-1 h-1) is 11 times that of pure CaTiO3(CTO), and the CO selectivity is 98.9%. This superior catalytic activity is attributed to the narrow band gap, photogenerated electron migration to alloy particles, and abundant surface oxygen vacancies. The carbene pathway reaction is also investigated through in-situ Raman spectroscopy. The present work presents a straightforward method for the exsolution of nanoalloys in metal-semiconductor heterostructures for photothermal CO2 reduction.
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Affiliation(s)
- Jun Zhou
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Zihe Zhu
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Qinghao Li
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Qiankai Zhang
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
- School of Electronics and Information, Xi'an Polytechnic University, Xi'an, 710048, People's Republic of China
| | - Zhengrong Liu
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Qinyuan Deng
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Zilin Zhou
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Cunxin Li
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Lei Fu
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Jiacheng Zhou
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Haonan Li
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
| | - Kai Wu
- Center of Nanomaterials for Renewable Energy, State Key Laboratory of Electrical Insulation and Power Equipment, Xi'an Jiaotong University, Xi'an, 710049, People's Republic of China
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23
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Fang Q, Hong C, Liu Z, Pan Y, Lin J, Zheng J, Zhang J, Chen T, Ma X, Wu A. Oxygen Vacancy Defect Enhanced NIR-II Photothermal Performance of BiO xCl Nanosheets for Combined Phototherapy of Cancer Guided by Multimodal Imaging. Adv Healthc Mater 2024; 13:e2303200. [PMID: 38183410 DOI: 10.1002/adhm.202303200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2023] [Revised: 12/08/2023] [Indexed: 01/08/2024]
Abstract
Narrow photo-absorption range and low carrier utilization are significant barriers that restrict the antitumor efficiency of 2D bismuth oxyhalide (BiOX, X = Cl, Br, I) nanosheets (NSs). Introducing oxygen vacancy (OV) defects can expand the absorption range and improve carrier utilization, which are crucial but also challenging. In this study, a series of BiOxCl NSs with different OV defect concentrations (x = 1, 0.7, 0.5) is developed, which shows full spectrum absorption and strong absorption in the second near-infrared region (NIR-II). Density functional theory calculations are utilized to calculate the crystal structure and density states of BiOxCl, which confirm that part of the carriers is separated by OV enhanced internal electric field to improve carrier utilization. The carriers without redox reaction can be trapped in the OV, leading to great majority of photo-generated carriers promoting the photothermal performance. Triggered by single NIR-II (1064 nm), BiOxCl NSs' bidirectional efficient utilization of carriers achieves synchronously combined phototherapy, leading to enhanced tumor ablation and multimodal diagnostic in vitro and vivo. It is thus believed that this work provides an innovative strategy to design and construct nanoplatforms of indirect band gap semiconductors for clinical phototheranostics.
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Affiliation(s)
- Qianlan Fang
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Chengyuan Hong
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
- Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham Ningbo China, Ningbo, 315100, P. R. China
| | - Zhusheng Liu
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
| | - Yuning Pan
- Department of Radiology, The First Affiliated Hospital of Ningbo University, Ningbo, 315010, P. R. China
- Ningbo Clinical Research Center for Medical Imaging, Ningbo, 315010, P. R. China
| | - Jie Lin
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
| | - Jianjun Zheng
- Ningbo Clinical Research Center for Medical Imaging, Ningbo, 315010, P. R. China
- Department of Radiology, Ningbo No.2 Hospital, Ningbo, 315010, P. R. China
| | - Jingfeng Zhang
- Ningbo Clinical Research Center for Medical Imaging, Ningbo, 315010, P. R. China
- Department of Radiology, Ningbo No.2 Hospital, Ningbo, 315010, P. R. China
| | - Tianxiang Chen
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
- Ningbo Clinical Research Center for Medical Imaging, Ningbo, 315010, P. R. China
- Department of Radiology, Ningbo No.2 Hospital, Ningbo, 315010, P. R. China
| | - Xuehua Ma
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- Department of Radiology, Ningbo No.2 Hospital, Ningbo, 315010, P. R. China
| | - Aiguo Wu
- Ningbo Cixi Institute of Biomedical Engineering, Ningbo Key Laboratory of Biomedical Imaging Probe Materials and Technology, International Cooperation Base of Biomedical Materials Technology and Application, CAS Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences (CAS), Ningbo, Zhejiang, 315201, China
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24
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Liu H, Liu J, Sun B, Zhang Z, Jiao C, Sun D, Zhang L, Zhang Y. Ca 2LaTaO 6:Bi 3+/Mn 4+ Phosphors with High Brightness Far-Red Emitting and Luminescence Enhancement for Plant Growth LED Lights and Temperature Sensor. Inorg Chem 2024; 63:5365-5377. [PMID: 38466201 DOI: 10.1021/acs.inorgchem.3c03939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2024]
Abstract
Herein, Bi3+/Mn4+ doped Ca2LaTaO6 phosphors with a double-perovskite structure were successfully synthesized with solid-state reaction at high temperature. The photoluminescence (PL) performances were investigated in detail. The blue radiation (∼465 nm) from the Bi3+ ion and the red radiation (∼686 nm) originating from the Mn4+ ion were obtained under 313 nm excitation. Especially, the pathway of energy transfer (Bi3+ → Mn4+) contributes to enhance the red emission intensity (Mn4+: ∼686 nm) in Ca2LaTaO6:Bi3+/Mn4+ system. The PL mechanism of Ca2LaTaO6:Bi3+/Mn4+ was analyzed through luminescence lifetimes and PL spectra. Moreover, the emitting bands of Ca2LaTaO6:Bi3+/Mn4+ were primarily matched with the absorbing bands of carotenoids and phytochrome PFR on behalf of plant growth, so the phosphors were suitable for the design of a plant growth light under near-ultraviolet to blue excitation. At last, the optical temperature dependent performances of the Ca2LaTaO6:Bi3+/Mn4+ were analyzed with luminescence intensity ratio technology. The sample has presented excellent temperature measuring relative sensitivity (SR = 2.106% K-1). The results illustrated that the Ca2LaTaO6:Bi3+/Mn4+ phosphor also can be used to develop an optical temperature sensor.
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Affiliation(s)
- Hang Liu
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Jian Liu
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Bo Sun
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Ziyi Zhang
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Chongshan Jiao
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - Ding Sun
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
| | - LiXin Zhang
- School of Physics, Nankai University, Tianjin 300071, China
| | - Yuhong Zhang
- School of Electrical and Computer Engineering, Jilin Jianzhu University, Changchun 130118, China
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25
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Wang Z, Li W, Fan Y, Xiao C, Shi Z, Chang Y, Liang G, Liu C, Zhu Z, Yu P, Yang X, Song Z, Ning C. Localized Surface Plasmon Resonance-Enhanced Photocatalytic Antibacterial of In Situ Sprayed 0D/2D Heterojunction Composite Hydrogel for Treating Diabetic Wound. Adv Healthc Mater 2024:e2303836. [PMID: 38507269 DOI: 10.1002/adhm.202303836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 03/08/2024] [Indexed: 03/22/2024]
Abstract
Chronic diabetic wounds pose significant challenges due to uncontrolled bacterial infections, prolonged inflammation, and impaired angiogenesis. The rapid advancement of photo-responsive antibacterial therapy shows promise in addressing these complex issues, particularly utilizing 2D heterojunction materials, which offer unique properties. Herein, an in situ sprayed Bi/BiOCl 0D/2D heterojunction composite fibrin gel with the characteristics of rapid formation and effective near-infrared activation is designed for the treatment of non-healing diabetes-infected wounds. The sprayed composite gel can provide protective shielding for skin tissues and promote endothelial cell proliferation, vascularization, and angiogenesis. The Bi/BiOCl 0D/2D heterojunction, with its localized surface plasmon resonance (LSPR), can overcome the wide bandgap limitation of BiOCl, enhancing the generation of local heat and reactive oxygen species under near-infrared irradiation. This facilitates bacterial elimination and reduced inflammation, supporting the accelerated healing of diabetes-infected wounds. This study underscores the potential of LSPR-enhanced heterojunctions as advanced wound therapies for chronic diabetic wounds.
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Affiliation(s)
- Zhengao Wang
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Wei Li
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Youzhun Fan
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Cairong Xiao
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Zhifeng Shi
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Yunbing Chang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangzhou, 510080, P.R. China
| | - Guoyan Liang
- Department of Orthopedics, Guangdong Provincial People's Hospital, Guangzhou, 510080, P.R. China
| | - Chengli Liu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Zurong Zhu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Peng Yu
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
| | - Xuebin Yang
- Biomaterials and Tissue Engineering Group, School of Dentistry, University of Leeds, Leeds, LS97TF, UK
| | - Zhiguo Song
- School of Materials Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, P.R. China
| | - Chengyun Ning
- School of Materials Science and Engineering, South China University of Technology, Guangzhou, 510006, P. R. China
- National Engineering Research Center for Tissue Restoration and Reconstruction, South China University of Technology, Guangzhou, 510006, P. R. China
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26
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Fang Y, Cao Y, Chen Q. Asymmetric Fe-O 2-Ti structures accelerate reduced-layer-Fe II "electron" conversion: Facilitating photocatalytic nitrogen fixation. J Colloid Interface Sci 2024; 658:401-414. [PMID: 38118187 DOI: 10.1016/j.jcis.2023.12.077] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/07/2023] [Accepted: 12/11/2023] [Indexed: 12/22/2023]
Abstract
As a green and sustainable method for ammonia production, solar photocatalytic nitrogen fixation (PNRR) provides a new approach to slowing down the consumption of non-renewable energy resources. Given the extremely huge energy required to activate inert nitrogen, a rational design of efficient nitrogen fixation catalytic materials is essential. This study constructs defective Ti3+-Ti3C2Ox to regulate the NH2-MIL-101(Fe) reduced layer-FeII 'electron' transition; meanwhile, the heterojunction interface electronic structure formed by coupling promotes catalytic charges' transfer/separation, while the interface-asymmetric Fe-O2-Ti structure accelerates the response with nitrogen. It is shown that the heterojunction NM-101(FeII/FeIII)-1.5 exhibits a 75.1 % FeII enrichment (FeII:FeIII), which successfully impedes the fouling relationship between the two (FeII/FeIII). Mössbauer spectroscopy analysis demonstrates that the presence of D1-high spin state FeIII and D2-low/medium spin state FeII structures in the heterojunction boosts the PNRR activity. Furthermore, it is found that the defective state Ti3+-Ti3C2Ox modulation enhances the reduced nitrogen fixation capacity of the heterojunction (CB = -0.84 eV) and decreases the interfacial charge transfer resistance, yielding 450 umol·g-1·h-1 ammonia. Furthermore, this study modulates the charge ration of the catalyst reduction layer by constructing a charge-asymmetric structure with Ti3+-deficient carriers; this method provides a potential opportunity for enhancing photocatalytic nitrogen fixation in the future.
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Affiliation(s)
- Yu Fang
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; School of Materials and Construction Engineering, Guizhou Normal University, Guiyang 550025, China
| | - Yang Cao
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China
| | - Qianlin Chen
- School of Chemistry and Chemical Engineering, Guizhou University, Guiyang 550025, China; Collaborative Innovation Center of Guizhou Province for Efficient Utilization of Phosphorus and Fluorine Resources, Guizhou University, Guiyang 550025, China.
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27
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Zhou L, Liu Y, Shi H, Qing Y, Chen C, Shen L, Zhou M, Li B, Lin H. Molecular oxygen activation: Innovative techniques for environmental remediation. WATER RESEARCH 2024; 250:121075. [PMID: 38159543 DOI: 10.1016/j.watres.2023.121075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 12/24/2023] [Accepted: 12/26/2023] [Indexed: 01/03/2024]
Abstract
Molecular oxygen as a green, non-toxic, and inexpensive oxidant has displayed numerous advantages compared with other oxidants for more sustainable and environmentally benign pollutant degradation. Molecular oxygen activation stands as a groundbreaking approach in advanced oxidation processes, offering efficient environmental remediation with minimal environmental impact with the production of high-oxidation reactive oxygen species (ROS). The adaptability and energy efficiency of molecular oxygen activation significantly contribute to the progression of sustainable water remediation technologies. This review meticulously explores the principles and mechanisms of molecular oxygen activation, shedding light on the diverse ROS production pathways. Subsequently, this review comprehensively details contemporary activation approaches, including photocatalytic activation, electrocatalytic activation, piezoelectric activation, and photothermal activation, explicating their distinct activation mechanisms. Additionally, it delves into the promising applications of molecular oxygen activation in the degradation of water pollutants, primary air pollutants, and volatile organic compounds, providing an in-depth analysis of the associated degradation pathways and mechanisms. Moreover, this review also addresses the imminent challenges and emerging opportunities in environmental remediation. It is envisioned that this comprehensive analysis will spur ongoing exploration and innovation in the use of molecular oxygen activation for environmental remediation and beyond.
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Affiliation(s)
- Lili Zhou
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Yuting Liu
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Hao Shi
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Yurui Qing
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Cheng Chen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Liguo Shen
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China
| | - Mingzhu Zhou
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Bisheng Li
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Hongjun Lin
- College of Geography and Environmental Sciences, Zhejiang Normal University, Jinhua 321004, China.
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28
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Rezaei M, Nezamzadeh-Ejhieh A, Massah AR. A Comprehensive Review on the Boosted Effects of Anion Vacancy in the Heterogeneous Photocatalytic Degradation, Part II: Focus on Oxygen Vacancy. ACS OMEGA 2024; 9:6093-6127. [PMID: 38371849 PMCID: PMC10870278 DOI: 10.1021/acsomega.3c07560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/10/2024] [Accepted: 01/11/2024] [Indexed: 02/20/2024]
Abstract
Environmental problems, including the increasingly polluted water and the energy crisis, have led to a need to propose novel strategies/methodologies to contribute to sustainable progress and enhance human well-being. For these goals, heterogeneous semiconducting-based photocatalysis is introduced as a green, eco-friendly, cost-effective, and effective strategy. The introduction of anion vacancies in semiconductors has been well-known as an effective strategy for considerably enhancing the photocatalytic activity of such photocatalytic systems, giving them the advantages of promoting light harvesting, facilitating photogenerated electron-hole pair separation, optimizing the electronic structure, and enhancing the yield of reactive radicals. This Review will introduce the effects of anion vacancy-dominated photodegradation systems. Then, their mechanism will illustrate how an anion vacancy changes the photodegradation pathway to enhance the degradation efficiency toward pollutants and the overall photocatalytic performance. Specifically, the vacancy defect types and the methods of tailoring vacancies will be briefly illustrated, and this part of the Review will focus on the oxygen vacancy (OV) and its recent advances. The challenges and development issues for engineered vacancy defects in photocatalysts will also be discussed for practical applications and to provide a promising research direction. Finally, some prospects for this emerging field will be proposed and suggested. All permission numbers for adopted figures from the literature are summarized in a separate file for the Editor.
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Affiliation(s)
- Mahdieh Rezaei
- Department
of Chemistry, Shahreza Branch, Islamic Azad
University, P.O. Box 311-86145, Shahreza, Isfahan 86139-74183, Iran
| | - Alireza Nezamzadeh-Ejhieh
- Department
of Chemistry, Shahreza Branch, Islamic Azad
University, P.O. Box 311-86145, Shahreza, Isfahan 86139-74183, Iran
- Department
of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Isfahan 81551-39998, Iran
| | - Ahmad Reza Massah
- Department
of Chemistry, Shahreza Branch, Islamic Azad
University, P.O. Box 311-86145, Shahreza, Isfahan 86139-74183, Iran
- Department
of Chemistry, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Isfahan 81551-39998, Iran
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29
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Chaves NO, Lima LS, Monteiro MDS, Sobrinho RAL, Ferreira NS, Ramos GQ, da Fonseca Filho HD, Oliveira RMPB, Matos RS. Associating Physical and Photocatalytic Properties of Recyclable and Reusable Blast Furnace Dust Waste. MATERIALS (BASEL, SWITZERLAND) 2024; 17:818. [PMID: 38399069 PMCID: PMC10889973 DOI: 10.3390/ma17040818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/25/2024]
Abstract
Blast furnace dust waste (BFDW) proved efficient as a photocatalyst for the decolorization of methylene blue (MB) dye in water. Structural analysis unequivocally identified α-Fe2O3 as the predominant phase, constituting approximately 92%, with a porous surface showcasing unique 10-30 nm agglomerated nanoparticles. Chemical and thermal analyses indicated surface-bound water and carbonate molecules, with the main phase's thermal stability up to 900 °C. Electrical conductivity analysis revealed charge transfer resistance values of 616.4 Ω and electrode resistance of 47.8 Ω. The Mott-Schottky analysis identified α-Fe2O3 as an n-type semiconductor with a flat band potential of 0.181 V vs. Ag/AgCl and a donor density of 1.45 × 1015 cm-3. The 2.2 eV optical bandgap and luminescence stem from α-Fe2O3 and weak ferromagnetism arises from structural defects and surface effects. With a 74% photocatalytic efficiency, stable through three photodegradation cycles, BFDW outperforms comparable waste materials in MB degradation mediated by visible light. The elemental trapping experiment exposed hydroxyl radicals (OH•) and superoxide anions (O2-•) as the primary species in the photodegradation process. Consequently, iron oxide-based BFDW emerges as an environmentally friendly alternative for wastewater treatment, underscoring the pivotal role of its unique physical properties in the photocatalytic process.
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Affiliation(s)
- Nayane O. Chaves
- Postgraduate Program in Materials Science and Engineering (P2CEM), Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil; (N.O.C.); (R.M.P.B.O.)
| | - Lucas S. Lima
- Laboratory of Corrosion and Nanotechnology (LCNT), Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil; (L.S.L.); (M.D.S.M.)
| | - Michael D. S. Monteiro
- Laboratory of Corrosion and Nanotechnology (LCNT), Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil; (L.S.L.); (M.D.S.M.)
| | - Raimundo A. L. Sobrinho
- Department of Chemical Engineering, State University of Santa Cruz, Rod. Jorge Amado, Km 16—Salobrinho, Ilhéus 45662-900, BA, Brazil;
| | - Nilson S. Ferreira
- Department of Physics, Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil;
| | - Glenda Q. Ramos
- Centro Multiusuário para Análise de Fenômenos Biomédicos, Universidade do Estado do Amazonas, Manaus 69410-000, AM, Brazil;
| | - Henrique D. da Fonseca Filho
- Laboratory of Synthesis of Nanomaterials and Nanoscopy (LSNN), Physics Department, Federal University of Amazonas-UFAM, Manaus 69077-000, AM, Brazil;
| | - Rosane M. P. B. Oliveira
- Postgraduate Program in Materials Science and Engineering (P2CEM), Federal University of Sergipe, São Cristovão 49100-000, SE, Brazil; (N.O.C.); (R.M.P.B.O.)
| | - Robert S. Matos
- Amazonian Materials Group, Federal University of Amapá (UNIFAP), Macapá 68911-477, AP, Brazil
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30
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Wu Y, Wang P, Che H, Liu W, Tang C, Ao Y. Triggering Dual Two-electron Pathway for H 2 O 2 Generation by Multiple [Bi-O] n Interlayers in Ultrathin Bi 12 O 17 Cl 2 towards Efficient Piezo-self-Fenton Catalysis. Angew Chem Int Ed Engl 2024; 63:e202316410. [PMID: 38072828 DOI: 10.1002/anie.202316410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Indexed: 01/03/2024]
Abstract
Piezo-self-Fenton system (PESF) has been emerging as a promising water treatment technology but suffering from unsatisfied H2 O2 production efficiency. Herein, we rationally design a Bi12 O17 Cl2 piezo-catalyst with multiple [Bi-O]n interlayers towards highly efficient H2 O2 production. The introduction of [Bi3 O4.25 ] layers initiates dual two-electron pathway for H2 O2 generation by altering the interlayer properties. It is found that the additional [Bi3 O4.25 ] layers not only enhance the polarization electric field but also serve as active sites for triggering dual pathways of two-electron O2 reduction and H2 O oxidation reaction for H2 O2 production. Therefore, the Bi12 O17 Cl2 exhibits an ultrahigh rate of H2 O2 generation (7.76 mM h-1 g-1 ) in pure water. Based on the adequate H2 O2 yield, a PESF was constructed for acetaminophen (ACE) degradation with an apparent rate constant of 0.023 min-1 . This work not only presents a potential strategy of tuning the activity of bismuth based piezo-catalysts but also provides a good example on the construction of highly efficient PESF for environmental remediation by using natural mechanical energy.
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Affiliation(s)
- Yang Wu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing, 210098, China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing, 210098, China
| | - Huinan Che
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing, 210098, China
| | - Wei Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing, 210098, China
| | - Chunmei Tang
- College of Science, Hohai University, No.1, Xikang road, Nanjing, 210098, China
| | - Yanhui Ao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Ministry of Education, College of Environment, Hohai University, No.1, Xikang road, Nanjing, 210098, China
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Wang B, Zhang N, Wang Y, Chen D, Qi J, Tu J. S-induced Phase Change Forming In 2 O 3 /In 2 S 3 Heterostructure for Photoelectrochemical Glucose Sensor. Chemistry 2024; 30:e202303514. [PMID: 38081143 DOI: 10.1002/chem.202303514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Indexed: 02/03/2024]
Abstract
In the past several decades, Photoelectrochemical (PEC) sensing still remains a great challenge to design highly-efficient semiconductor photocatalysts via a facile method. It is of much importance to design and synthesize various novel nanostructured sensing materials for further improving the response performance. Herein, we present an In2 O3 /In2 S3 heterostructure obtained by combining microwave assisted hydrothermal method with S-induced phase change, whose energy band and electronic structure could be adjusted by changing the S content. Combining theoretical calculation and spectroscopic techniques, the introduction of sulfur was proved to produce multifunctional interfaces, inducing the change of phase, oxygen vacancies and band gap, which accelerates the separation of photoexcited carriers and reduces their recombination, improving the electronic injection efficiency around the interface of In2 O3 /In2 S3 . As anticipated, an enhanced glucose response performance with a photocurrent of 0.6 mA cm-2 , a linear range of 0.1-1 mM and a detection limit as low as 14.5 μM has been achieved based on the In2 O3 /In2 S3 heterostructure, which is significant superior over its pure In2 O3 and S-doped In2 O3 counterparts. This efficient interfacial strategy may open a new route to manipulate the electrical structure, and energy band structure regulation of sensing material to improve the performance of photoelectrodes for PEC.
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Affiliation(s)
- Bingrong Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Nan Zhang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Yifeng Wang
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Delun Chen
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
| | - Junlei Qi
- State Key Laboratory of Advanced Welding and, Joining Harbin Institute of Technology, Harbin, 150001, P. R. China
| | - Jinchun Tu
- State Key Laboratory of Marine Resource Utilization in South China Sea, School of Materials Science and Engineering, Hainan University, Haikou, 570228, P. R. China
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Meng FL, Zhang X, Hu Y, Sheng GP. New Barrier Role of Iron Plaque: Producing Interfacial Hydroxyl Radicals to Degrade Rhizosphere Pollutants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:795-804. [PMID: 38095914 DOI: 10.1021/acs.est.3c08132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2024]
Abstract
Iron plaque, as a natural barrier between rice and soil, can reduce the accumulation of pollutants in rice by adsorption, contributing to the safe production of rice in contaminated soil. In this study, we unveiled a new role of iron plaque, i.e., producing hydroxyl radicals (·OH) by activating root-secreted oxygen to degrade pollutants. The ·OH was produced on the iron plaque surface and then diffused to the interfacial layer between the surface and the rhizosphere environment. The iron plaque activated oxygen via a successive three-electron transfer to produce ·OH, involving superoxide and hydrogen peroxide as the intermediates. The structural Fe(II) in iron plaque played a dominant role in activating oxygen rather than the adsorbed Fe(II), since the structural Fe(II) was thermodynamically more favorable for oxygen activation. The oxygen vacancies accompanied by the structural Fe(II) played an important role in oxygen activation to produce ·OH. The interfacial ·OH selectively degraded rhizosphere pollutants that could be adsorbed onto the iron plaque and was less affected by the rhizosphere environments than the free ·OH. This study uncovered the oxidative role of iron plaque mediated by its produced ·OH, reshaping our understanding of the role of iron plaque as a barrier for rice.
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Affiliation(s)
- Fan-Li Meng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Xin Zhang
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Yi Hu
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
| | - Guo-Ping Sheng
- CAS Key Laboratory of Urban Pollutant Conversion, Department of Environmental Science and Engineering, University of Science and Technology of China, Hefei 230026, China
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33
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Wang Z, Tan G, Zhang B, Yang Q, Feng S, Liu Y, Liu T, Guo L, Zeng C, Liu W, Xia A, Ren H, Yin L, Fan S. Intrinsic Polarized Electric Field Induces a Storing Mechanism to Achieve Energy Storing Catalysis in V 2 C MXene. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2307795. [PMID: 37823519 DOI: 10.1002/adma.202307795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 10/10/2023] [Indexed: 10/13/2023]
Abstract
Efficient storage and separation of holes and electrons pose significant challenges for catalytic reactions, particularly in the context of single-phase catalysis. Herein, V2 C MXene, with its intrinsic polarized electric field, successfully overcomes this obstacle. To enhance hole storage, a multistep etching process is employed under reducing conditions to control the content of surface termination groups, thus exposing more defective active sites. The intrinsically polarized electric field confines holes to the surface of the layer and free electrons within the layer, leading to a lag in e- release compared to h+ . The quantities of stored holes and electrons are measured to be 18.13 µmol g-1 and 106.37 µmol g-1 , respectively. Under dark, V2 C demonstrates excellent and stable dark-catalytic performance, degrading 57.91% of tetracycline (TC 40 mg L-1 ) and removing 23% of total organic carbon (TOC) after 140 min. In simulated sunlight and near-infrared light, the corresponding degradation rates reach 72.24% and 79.54%, with corresponding TOC removal rates of 49% and 48%, respectively. The hole and electron induced localized surface plasmon resonance (LSPR) effects contribute to a long-lasting and enhanced broad-spectrum mineralization of V2 C MXene. This study provides valuable insights into the research and application of all-weather MXene energy storage catalytic materials.
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Affiliation(s)
- Zeqiong Wang
- School of Materials Science and Engineering, Shaanxi University of Science and Technology, Xi'an, 710021, China
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Guoqiang Tan
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Bixin Zhang
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Qian Yang
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Shuaijun Feng
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Ying Liu
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Tian Liu
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Linxin Guo
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Chunyan Zeng
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Wenlong Liu
- School of Electronic Information and Artiffcial Intelligence, Shaanxi University of Science & Technology, Xi'an, 710021, China
| | - Ao Xia
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Huijun Ren
- School of Arts and Sciences, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Lixiong Yin
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
| | - Sizhe Fan
- Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an, 710021, China
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Zhao Y, Shu Y, Linghu X, Liu W, Di M, Zhang C, Shan D, Yi R, Wang B. Modification engineering of TiO 2-based nanoheterojunction photocatalysts. CHEMOSPHERE 2024; 346:140595. [PMID: 37951392 DOI: 10.1016/j.chemosphere.2023.140595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 09/27/2023] [Accepted: 10/29/2023] [Indexed: 11/14/2023]
Abstract
Titanium dioxide (TiO2)-based photocatalysts have gained increasing attention for their versatile applications in organic degradation, hydrogen production, air purification, and CO2 reduction. Various TiO2-based heterojunction structures, including type I, type II, Schottky junction, Z-scheme, and S-scheme, have been extensively studied. The current research frontier is centered on the engineering modifications of TiO2-based nanoheterojunction photocatalysts, such as defect engineering, morphological engineering, crystal phase/facet engineering, and multijunction engineering. These modifications enhance carrier transport, separation, and light absorption, thereby improving the photocatalytic performance. Remarkably, this aspect has been less addressed in existing reviews. This review aims to fill this gap by focusing on the engineering modifications of TiO2-based nanoheterojunction photocatalysts. We delve into specific topics like oxygen vacancies, n-p homojunctions, and double defects. The review also systematically discusses the applications of multidimensional heterojunctions and examines carrier transport pathways in heterophase/facet junctions and their interactions with heterojunctions. A comprehensive summary of multijunction systems, including multi-Schottky junctions, semiconductor-based heterojunction-attached Schottky junctions, and multisemiconductor-based heterojunctions, is presented. Lastly, we outline future perspectives in this promising research field. This paper will assist researchers in constructing more efficient TiO2-based nanoheterojunction photocatalysts.
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Affiliation(s)
- Yue Zhao
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Yue Shu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Xiaoyu Linghu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Wenqi Liu
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Mengyu Di
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Changyuan Zhang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Dan Shan
- Department of Medical, Tianjin Stomatological Hospital, School of Medicine, Nankai University, Tianjin, 300041, China
| | - Ran Yi
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China
| | - Baiqi Wang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, Tianjin 300070, China; Tianjin Key Laboratory of Environment, Nutrition and Public Health, Tianjin, 300070, China; National Demonstration Center for Experimental Preventive Medicine Education (Tianjin Medical University), Tianjin, 300070, China.
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35
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Tan W, Yang C, Huang Z, Li Z, Dou L. Fabrication of OVs enriched BiOCl microflowers doped with Fe 3+ for effective destruction of two typical contaminants. ENVIRONMENTAL TECHNOLOGY 2023:1-9. [PMID: 38100572 DOI: 10.1080/09593330.2023.2293676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Accepted: 10/14/2023] [Indexed: 12/17/2023]
Abstract
In this study, a one-step solvothermal method was used to fabricate Fe3+ doped BiOCl microflowers with abundant oxygen vacancies (OVs) in the presence of glacial acetic acid. Various analytical techniques were employed to characterize the structural, morphological, and optical properties of the prepared samples. The presence of OVs was confirmed by low temperature electron paramagnetic resonance (EPR) analysis. The photocatalytic results show that Fe3+ doped BiOCl photocatalysts have higher activity than the bare BiOCl, and 10% Fe3+/BiOCl exhibits the highest photocatalytic performance, the photocatalytic efficiency of this sample is 2.3 and 1.1 times higher than that of the blank BiOCl toward photocatalytic degradation of perfluorooctanoic acid (PFOA) and rhodamine B (RhB), respectively. Furthermore, Fe3+ doped BiOCl demonstrates excellent reusability. Based on the experimental observations, an enhancement mechanism for the photocatalytic activity of Fe3+ doped BiOCl was reasonably elucidated.
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Affiliation(s)
- Wenyuan Tan
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, People's Republic of China
| | - Cuixian Yang
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, People's Republic of China
| | - Zhongyong Huang
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, People's Republic of China
| | - Zhongqu Li
- College of Chemical Engineering, Sichuan University of Science and Engineering, Zigong, People's Republic of China
| | - Lin Dou
- Key Laboratories of Fine Chemicals and Surfactants in Provincial Universities, College of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong, People's Republic of China
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36
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Chen B, Hou Y, Li H, Gao H, Fu H, Liao F, Zhang J, Liao Y. Self-sacrificed BiOBr template-assisted synthesis of α-Bi 2O 3/Bi 3O 4Br heterojunctions with oxygen vacancies for enhanced photocatalytic nitrogen fixation. J Colloid Interface Sci 2023; 652:1857-1866. [PMID: 37688932 DOI: 10.1016/j.jcis.2023.08.200] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/23/2023] [Accepted: 08/31/2023] [Indexed: 09/11/2023]
Abstract
The catalytic conversion of nitrogen to ammonia is one of the most significant processes in nature and the chemical industry. However, the traditional Haber-Bosch process of ammonia synthesis consumes substantial energy and emits a large amount of carbon dioxide. The efficiency of photocatalytic N2 activation is severely limited by the lack of N2 adsorption sites and poor carrier utilization. Herein, an efficient α-Bi2O3/Bi3O4Br heterojunction is proposed with a photocatalytic nitrogen fixation activity of 238.67 μmol·g-1·h-1. Compared with the BiOBr precursor, α-Bi2O3 and Bi3O4Br, the α-Bi2O3/Bi3O4Br heterojunction with oxygen vacancies can improve the adsorption and activation capacity of N2 and promote the separation efficiency of charge carrier pairs by accommodating photogenerated electrons under visible light through the mechanism of N-type semiconductors. Therefore, oxygen vacancies and heterojunction engineering of semiconductive nanomaterials provide a promising method for the rational design of photocatalysts to enhance the rate of ammonia synthesis under mild conditions.
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Affiliation(s)
- Bowen Chen
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Yuanwen Hou
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Hanke Li
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology, South China University of Technology, Guangzhou, Guangdong 510641, China
| | - Hejun Gao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
| | - Hongquan Fu
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Fang Liao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Juan Zhang
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China.
| | - Yunwen Liao
- College of Chemistry and Chemical Engineering, Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, China West Normal University, Nanchong, Sichuan 637000, China
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37
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Han T, Cao X, Chen HC, Ma J, Yu Y, Li Y, Xu W, Sun K, Huang A, Chen Z, Chen C, Zhang H, Ye B, Peng Q, Li Y. Photosynthesis of Benzonitriles on BiOBr Nanosheets Promoted by Vacancy Associates. Angew Chem Int Ed Engl 2023; 62:e202313325. [PMID: 37818672 DOI: 10.1002/anie.202313325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/12/2023]
Abstract
Photocatalytic organic functionalization reactions represent a green, cost-effective, and sustainable synthesis route for value-added chemicals. However, heterogeneous photocatalysis is inefficient in directly activating ammonia molecules for the production of high-value-added nitrogenous organic products when compared with oxygen activation in the formation of related oxygenated compounds. In this study, we report the heterogeneous photosynthesis of benzonitriles by the ammoxidation of benzyl alcohols (99 % conversion, 93 % selectivity) promoted using BiOBr nanosheets with surface vacancy associates. In contrast, the main reaction of catalysts with other types of vacancy sites is the oxidation of benzyl alcohol to benzaldehyde or benzoic acid. Experimental measurements and theoretical calculations have demonstrated a specificity of vacancy type with respect to product selectivity, which arises from the adsorption and activation of NH3 and O2 that is required to promote subsequent C-N coupling and oxidation to nitrile. This study provides a better understanding of the role of vacancies as catalytic sites in heterogeneous photocatalysis.
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Affiliation(s)
- Tong Han
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xing Cao
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
- Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, Hangzhou, 310030, China
| | - Hsiao-Chien Chen
- Center for Reliability Science and Technologies, Chang Gung University, Taoyuan, 33302, Taiwan
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Linkou, Taoyuan, 33305, Taiwan
| | - Junguo Ma
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuan Yu
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yuhuan Li
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China
| | - Wei Xu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China
| | - Kaian Sun
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Aijian Huang
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Zheng Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China
| | - Chen Chen
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Hongjun Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China
| | - Bangjiao Ye
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, 230026, China
| | - Qing Peng
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yadong Li
- Department of Chemistry, Tsinghua University, Beijing, 100084, China
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241002, China
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
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38
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Wu M, Yong J, Zhang H, Wang Z, Xu ZP, Zhang R. 2D Ultrathin Iron Doped Bismuth Oxychloride Nanosheets with Rich Oxygen Vacancies for Enhanced Sonodynamic Therapy. Adv Healthc Mater 2023; 12:e2301497. [PMID: 37285593 DOI: 10.1002/adhm.202301497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Indexed: 06/09/2023]
Abstract
Sonodynamic therapy (SDT) combines ultrasound and sonosensitizers to produce toxic reactive oxygen species (ROS) for cancer cell killing. Due to the high penetration depth of ultrasound (US), SDT breaks the depth penetration barrier of conventional photodynamic therapy for the treatment of deeply seated tumors. A key point to enhance the therapeutic efficiency of SDT is the development of novel sonosensitizers with promoted ability for ROS production. Herein, ultrathin Fe-doped bismuth oxychloride nanosheets with rich oxygen vacancies and bovine serum albumin coating on surface are designed as piezoelectric sonosensitizers (BOC-Fe NSs) for enhanced SDT. The oxygen vacancies of BOC-Fe NSs provide electron trapping sites to promote the separation of e- -h+ from the band structure, which facilitates the ROS production under the ultrasonic waves. The piezoelectric BOC-Fe NSs create a built-in field and the bending bands, further accelerating the ROS generation with US irradiation. Furthermore, BOC-Fe NSs can induce ROS generation by a Fenton reaction catalyzed by Fe ion with endogenous H2 O2 in tumor tissues for chemodynamic therapy. The as-prepared BOC-Fe NSs efficiently inhibited breast cancer cell growth in both in vitro and in vivo tests. The successfully development of BOC-Fe NSs provides a new nano-sonosensitiser option for enhanced SDT for cancer therapy.
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Affiliation(s)
- Miaomiao Wu
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Jiaxi Yong
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Huayue Zhang
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Zhiliang Wang
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
- Institute of Biomedical Health Technology and Engineering and Institute of Systems and Physical Biology, Shenzhen Bay Laboratory, Shenzhen, 518107, P. R. China
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, St Lucia, QLD, 4072, Australia
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Guo S, Gao M, Zhang W, Liu F, Guo X, Zhou K. Recent Advances in Laser-Induced Synthesis of MOF Derivatives. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303065. [PMID: 37319033 DOI: 10.1002/adma.202303065] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/01/2023] [Indexed: 06/17/2023]
Abstract
Metal-organic frameworks (MOFs) are crystalline materials with permanent pores constructed by the self-assembly of organic ligands and metal clusters through coordination bonds. Due to their diversity and tunability, MOFs are used as precursors to be converted into other types of functional materials by pyrolytic recrystallization. Laser-induced synthesis is proven to be a powerful pyrolytic processing technique with fast and accurate laser irradiation, low loss, high efficiency, selectivity, and programmability, which endow MOF derivatives with new features. Laser-induced MOF derivatives exhibit high versatility in multidisciplinary research fields. In this review, first, the basic principles of laser smelting and the types of materials for laser preparation of MOF derivatives are briefly introduced. Subsequently, it is focused on the peculiarity of the engineering of structural defects and their applications in catalysis, environmental protection, and energy fields. Finally, the challenges and opportunities at the current stage are highlighted with the aim of elucidating the future direction of the rapidly growing field of laser-induced synthesis of MOF derivatives.
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Affiliation(s)
- Shuailong Guo
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Ming Gao
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
| | - Wang Zhang
- College of Materials Science and Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Feng Liu
- State Key Laboratory of Powder Metallurgy, Central South University, Changsha, 410083, China
| | - Xueyi Guo
- School of Metallurgy and Environment, Central South University, Changsha, 410083, China
| | - Kun Zhou
- Singapore Centre for 3D Printing, School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore, 639798, Singapore
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40
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Li D, Wu Z, Li Y, Fan X, Hasan SMN, Arafin S, Rahman MA, Li J, Wang Z, Yu T, Kong X, Zhu L, Sadaf SM, Zhou B. A semiconducting hybrid of RhO x/GaN@InGaN for simultaneous activation of methane and water toward syngas by photocatalysis. PNAS NEXUS 2023; 2:pgad347. [PMID: 38024421 PMCID: PMC10662453 DOI: 10.1093/pnasnexus/pgad347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 10/17/2023] [Indexed: 12/01/2023]
Abstract
Prior to the eventual arrival of carbon neutrality, solar-driven syngas production from methane steam reforming presents a promising approach to produce transportation fuels and chemicals. Simultaneous activation of the two reactants, i.e. methane and water, with notable geometric and polar discrepancy is at the crux of this important subject yet greatly challenging. This work explores an exceptional semiconducting hybrid of RhOx/GaN@InGaN nanowires for overcoming this critical challenge to achieve efficient syngas generation from methane steam reforming by photocatalysis. By coordinating density functional theoretical calculations and microscopic characterizations, with in situ spectroscopic measurements, it is found that the multifunctional RhOx/GaN interface is effective for simultaneously activating both CH4 and H2O by stretching the C-H and O-H bonds because of its unique Lewis acid/base attribute. With the aid of energetic charge carriers, the stretched C-H and O-H bonds of reactants are favorably cleaved, resulting in the key intermediates, i.e. *CH3, *OH, and *H, to sit on Rh sites, Rh sites, and N sites, respectively. Syngas is subsequently produced via energetically favored pathway without additional energy inputs except for light. As a result, a benchmarking syngas formation rate of 8.1 mol·gcat-1·h-1 is achieved with varied H2/CO ratios from 2.4 to 0.8 under concentrated light illumination of 6.3 W·cm-2, enabling the achievement of a superior turnover number of 10,493 mol syngas per mol Rh species over 300 min of long-term operation. This work presents a promising strategy for green syngas production from methane steam reforming by utilizing unlimited solar energy.
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Affiliation(s)
- Dongke Li
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
- School of Physics, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang City 110036, Liaoning Province, China
| | - Zewen Wu
- College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Nanshan District, Shenzhen 518061, China
| | - Yixin Li
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xiaoxing Fan
- School of Physics, Liaoning University, No. 66 Chongshan Middle Road, Huanggu District, Shenyang City 110036, Liaoning Province, China
| | - S M Najib Hasan
- Electrical and Computer Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Shamsul Arafin
- Electrical and Computer Engineering, The Ohio State University, Columbus, OH 43210, USA
| | - Md Afjalur Rahman
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS)-Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Quebec J3X1S2, Canada
| | - Jinglin Li
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Zhouzhou Wang
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Tianqi Yu
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Xianghua Kong
- College of Physics and Optoelectronic Engineering, Shenzhen University, 3688 Nanhai Avenue, Nanshan District, Shenzhen 518061, China
| | - Lei Zhu
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
| | - Sharif Md Sadaf
- Centre Energie, Matériaux et Télécommunications, Institut National de la Recherche Scientifique (INRS)-Université du Québec, 1650 Boulevard Lionel-Boulet, Varennes, Quebec J3X1S2, Canada
| | - Baowen Zhou
- Key Laboratory for Power Machinery and Engineering of Ministry of Education, Research Center for Renewable Synthetic Fuel, School of Mechanical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China
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Guo F, Mao C, Liang C, Xing P, Yu L, Shi Y, Cao S, Wang F, Liu X, Ai Z, Zhang L. Triangle Cl-Ag 1 -Cl Sites for Superior Photocatalytic Molecular Oxygen Activation and NO Oxidation of BiOCl. Angew Chem Int Ed Engl 2023:e202314243. [PMID: 37874325 DOI: 10.1002/anie.202314243] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/22/2023] [Accepted: 10/23/2023] [Indexed: 10/25/2023]
Abstract
BiOCl photocatalysis shows great promise for molecular oxygen activation and NO oxidation, but its selective transformation of NO to immobilized nitrate without toxic NO2 emission is still a great challenge, because of uncontrollable reaction intermediates and pathways. In this study, we demonstrate that the introduction of triangle Cl-Ag1 -Cl sites on a Cl-terminated, (001) facet-exposed BiOCl can selectively promote one-electron activation of reactant molecular oxygen to intermediate superoxide radicals (⋅O2 - ), and also shift the adsorption configuration of product NO3 - from the weak monodentate binding mode to a strong bidentate mode to avoid unfavorable photolysis. By simultaneously tuning intermediates and products, the Cl-Ag1 -Cl-landen BiOCl achieved >90 % NO conversion to favorable NO3 - of high selectivity (>97 %) in 10 min under visible light, with the undesired NO2 concentration below 20 ppb. Both the activity and the selectivity of Cl-Ag1 -Cl sites surpass those of BiOCl surface sites (38 % NO conversion, 67 % NO3 - selectivity) or control O-Ag1 -O sites on a benchmark photocatalyst P25 (67 % NO conversion and 87 % NO3 - selectivity). This study develops new single-atom sites for the performance enhancement of semiconductor photocatalysts, and also provides a facile pathway to manipulate the reactive oxygen species production for efficient pollutant removal.
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Affiliation(s)
- Furong Guo
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Chengliang Mao
- Materials Chemistry and Nanochemistry Research Group, Solar Fuels Cluster, Departments of Chemistry, University of Toronto, 80 St. George Street, Toronto, ON, M5S 3H6, Canada
| | - Chuan Liang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Pan Xing
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Linghao Yu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Yanbiao Shi
- Department School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Shiyu Cao
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Fanyu Wang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Xiao Liu
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Zhihui Ai
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
| | - Lizhi Zhang
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental Chemistry, Central China Normal University, Wuhan, 430079, P. R. China
- Department School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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Chen G, Li J, Gui S, Wang Y, Zhang S, Wang Z, Zheng X, Meng S, Ruan C, Chen S. The Mars-Van Krevelen cycle and non-noble metal Ni jointly promoting Z-scheme charge transfer: a study on the photothermal synergy effect applied in selectively oxidizing aromatic alcohols. NANOSCALE 2023; 15:16209-16218. [PMID: 37779471 DOI: 10.1039/d3nr03540a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
Photothermal catalysis is a promising method for selectively oxidizing organic compounds, effectively addressing the energy-intensive and low-selective processes of thermal catalysis, as well as the slow reaction rates of photocatalysis. In this study, a ternary photothermal catalyst, Ni/CeO2/CdS, was synthesized using a simple calcination and solvothermal method. The catalyst demonstrated remarkable improvement in reaction rates and achieved nearly 100% selectivity in converting benzyl alcohol to benzaldehyde through photothermal catalysis at normal pressure. The reaction rates were 5.9 times and 63 times higher than those of CdS and Ni/CeO2 individually. XPS analysis confirmed that the thermal catalysis followed the Mars-Van Krevelen (MVK) mechanism and also proved that photocatalysis facilitated the MVK cycle. Additionally, DFT calculations showed that Ni acted as an electron transfer channel, facilitating efficient Z-scheme charge transfer. The in situ infrared technique was used to dynamically monitor the reaction process and explain the high selectivity of the product. Furthermore, detailed explanations of photocatalysis, thermocatalysis, and photothermal synergistic catalysis were proposed based on the aforementioned characterization and theoretical calculations. This approach establishes a theoretical foundation for the development of efficient photothermal catalysts.
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Affiliation(s)
- Gaoli Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Jing Li
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Shu Gui
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Ya Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Sujuan Zhang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Zhongliao Wang
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Xiuzhen Zheng
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Sugang Meng
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Chaohui Ruan
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
| | - Shifu Chen
- Key Laboratory of Green and Precise Synthetic Chemistry and Applications, Ministry of Education, Anhui Province Key Laboratory of Pollutant Sensitive Materials and Environmental Remediation, College of Chemistry and Material Science, Huaibei Normal University, Huaibei, 235000, People's Republic of China.
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43
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Guo H, Deng Y, Yin H, Liu J, Zou S. Fabricating BiOCl Nanoflake/FeOCl Nanospindle Heterostructures for Efficient Visible-Light Photocatalysis. Molecules 2023; 28:6949. [PMID: 37836792 PMCID: PMC10574461 DOI: 10.3390/molecules28196949] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/01/2023] [Accepted: 10/04/2023] [Indexed: 10/15/2023] Open
Abstract
Fabricating heterostructures with abundant interfaces and delicate nanoarchitectures is an attractive approach for optimizing photocatalysts. Herein, we report the facile synthesis of BiOCl nanoflake/FeOCl nanospindle heterostructures through a solution chemistry method at room temperature. Characterizations, including XRD, SEM, TEM, EDS, and XPS, were employed to investigate the synthesized materials. The results demonstrate that the in situ reaction between the Bi precursors and the surface Cl- of FeOCl enabled the bounded nucleation and growth of BiOCl on the surface of FeOCl nanospindles. Stable interfacial structures were established between BiOCl nanoflakes and FeOCl nanospindles using Cl- as the bridge. Regulating the Bi-to-Fe ratios allowed for the optimization of the BiOCl/FeOCl interface, thereby facilitating the separation of photogenerated carriers and accelerating the photocatalytic degradation of RhB. The BiOCl/FeOCl heterostructures with an optimal composition of 15% BiOCl exhibited ~90 times higher visible-light photocatalytic activity than FeOCl. Based on an analysis of the band structures and reactive oxygen species, we propose an S-scheme mechanism to elucidate the significantly enhanced photocatalytic performance observed in the BiOCl/FeOCl heterostructures.
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Affiliation(s)
- Heng Guo
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, China; (H.G.); (Y.D.); (H.Y.)
| | - Yangzhou Deng
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, China; (H.G.); (Y.D.); (H.Y.)
| | - Haoyong Yin
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, China; (H.G.); (Y.D.); (H.Y.)
| | - Juanjuan Liu
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310036, China; (H.G.); (Y.D.); (H.Y.)
| | - Shihui Zou
- Key Laboratory of Applied Chemistry of Zhejiang Province, Department of Chemistry, Zhejiang University, Hangzhou 310027, China
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44
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Jubeer EM, Manthrammel MA, Subha PA, Shkir M, Biju KP, AlFaify SA. Defect engineering for enhanced optical and photocatalytic properties of ZnS nanoparticles synthesized by hydrothermal method. Sci Rep 2023; 13:16820. [PMID: 37798379 PMCID: PMC10556056 DOI: 10.1038/s41598-023-43735-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 09/27/2023] [Indexed: 10/07/2023] Open
Abstract
Defect engineering is a promising method for improving light harvesting in photocatalytic materials like Zinc sulphide (ZnS). By altering the S/Zn molar ratio during hydrothermal processes, Zn and S defects are successfully introduced into the ZnS crystal. The band structures can be modified by adding defects to the crystal structure of ZnS samples. During the treatment process, defects are formed on the surface. XRD and Raman studies are used for the confirmation of the crystallinity and phase formation of the samples. Using an X-ray peak pattern assessment based on the Debye Scherer model, the Williamson-Hall model, and the size strain plot, it was possible to study the influence of crystal defect on the structural characteristics of ZnS nanoparticles. The band gap (Eg) values were estimated using UV-Vis diffuse spectroscopy (UV-Vis DRS) and found that the Eg is reduced from 3.28 to 3.49 eV by altering the S/Zn molar ratio. Photoluminescence study (PL) shows these ZnS nanoparticles emit violet and blue radiations. In keeping with the results of XRD, TEM demonstrated the nanoscale of the prepared samples and exhibited a small agglomeration of homogenous nanoparticles. Scanning electron microscopy (SEM) was used to examine the surface morphology of the ZnS particles. Inductively Coupled Plasma Optical Emission Spectroscopy (ICP-OES) and X-ray photoelectron spectroscopy (XPS) were used to evaluate and validate the elemental composition. XPS results indicate the presence of defects on the prepared ZnS nanoparticles. For the investigation of vacancy-dependent catalytic activity under exposure to visible light, defective ZnS with different quantities of Zn and S voids are used as catalysts. The lowest S/Zn sample, ZnS0.67 and the highest S/Zn sample, ZnS3, show superior photocatalytic activity.
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Affiliation(s)
- E Muhammed Jubeer
- Department of Physics, Farook College, University Of Calicut, Kozhikode, 673632, Kerala, India
| | - M Aslam Manthrammel
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box-9004, 61413, Abha, Saudi Arabia.
| | - P A Subha
- Department of Physics, Farook College, University Of Calicut, Kozhikode, 673632, Kerala, India
| | - Mohd Shkir
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box-9004, 61413, Abha, Saudi Arabia.
| | - K P Biju
- Department of Physics, Govt. Arts and Science College, Kozhikode, Calicut, 673018, Kerala, India
| | - S A AlFaify
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box-9004, 61413, Abha, Saudi Arabia
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45
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He Y, Gu J, Li A. BiOCl Nanosheets with (001), (002), and (003) Dominant Crystal Faces with Excellent Light-Degradation Ability. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:13770-13781. [PMID: 37738361 DOI: 10.1021/acs.langmuir.3c00935] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
Gray bismuth chloride nanosheets with a highly enhanced electric field intensity were prepared by a simple and efficient method. Their energy gap is reduced to 2.35 eV. The prepared nanosheets show high photocatalytic activity for the degradation of rhodamine B under visible light. The resulting samples were characterized by X-ray diffractometry, high-resolution scanning electron microscopy, X-ray photoelectron spectroscopy, infrared spectroscopy, UV-vis diffuse reflectance spectroscopy, specific surface area analysis, electrochemical analysis, electron paramagnetic resonance, and UV-vis spectroscopy. The photocatalytic activity of prepared BiOCl was evaluated by the degradation of RhB. The prepared BiOCl sample (0.5 g/L) could completely degrade RhB (10 mg/L) within 10 min, and its visible photocatalytic activity was 80 times that of the original white BiOCl. Superoxide radicals were the main active substance involved in organic degradation.
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Affiliation(s)
- Yingxiang He
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Jianmin Gu
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Adan Li
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
- Hebei Provincial Key Laboratory of Nano-Biotechnology, Yanshan University, Qinhuangdao 066004, Hebei, China
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46
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He H, Liu C, Li M, Liu Y, Zhu R. Synergistic photocatalytic degradation mechanism of BiOCl xI 1-x-OVs based on oxygen vacancies and internal electric field-mediated solid solution. CHEMOSPHERE 2023; 337:139281. [PMID: 37364642 DOI: 10.1016/j.chemosphere.2023.139281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/18/2023] [Accepted: 06/19/2023] [Indexed: 06/28/2023]
Abstract
The easy recombination of photoexcited electron-hole pairs is a serious constraint for the application of photocatalysts. In this work, a range of BiOClxI1-x solid solutions with abundant oxygen vacancies (BiOClxI1-x-OVs) were synthesized. In particular, the optimal BiOCl0.5I0.5-OVs sample exhibited almost 100% removal of bisphenol A (BPA) within 45 min visible light exposure, which was 22.4, 3.1 and 4.5 times greater than BiOCl, BiOCl-OVs and BiOCl0.5I0.5, respectively. Besides, the apparent quantum yield of BPA degradation reaches 0.24%, better than some other photocatalysts. Benefiting from the synergism of oxygen vacancies and solid solution, BiOCl0.5I0.5-OVs gained an enhanced photocatalytic capacity. Oxygen vacancies induced an intermediate defective energy level in BiOClxI1-x-OVs materials, promoting the generation of photogenerated electrons and the molecular oxygen adsorption to produce more active oxygen radicals. Meanwhile, the fabricated solid solution structure enhanced the internal electric field between BiOCl layers, achieving rapid migration of photoexcited electrons and effective segregation of photoinduced charge carriers. Thus, this study provides a viable idea to solve the problems of poor visible light absorption of BiOCl-based photocatalysts and easy reorganization of electrons and holes in the photocatalysts.
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Affiliation(s)
- Hao He
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Chenrui Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Mengke Li
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China
| | - Yun Liu
- Department of Environmental Science and Engineering, College of Environment and Resources, Xiangtan University, Xiangtan, 411105, China.
| | - Runliang Zhu
- CAS Key Laboratory of Mineralogy and Metallogeny, Guangdong Provincial Key Laboratory of Mineral Physics and Materials, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (CAS), Guangzhou, 510640, China
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Wu M, Li N, Shi M, Sun G, Shen W, Li Q, Ma J. Fabrication of multiphase MoSe 2 modified BiOCl nanosheets for efficient piezo-photoelectric hydrogen evolution and antibiotic degradation. Dalton Trans 2023; 52:12852-12861. [PMID: 37622402 DOI: 10.1039/d3dt02153j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/26/2023]
Abstract
Efficient spatial charge separation plays a crucial role in improving the photocatalytic performance. Therefore, 1T/2H MoSe2/BiOCl (1T/2H MS/BOC) and 2H MoSe2/BiOCl (2H MS/BOC) piezo-photocatalysts are synthesized. By combining piezoelectric catalysis and photocatalysis, a highly active piezo-photocatalytic process is realized. The optimal 1T/2H MS/BOC piezo-photocatalyst displays superior diclofenac (DCF) degradation and hydrogen (H2) evolution activity under the combined action of ultrasound and light. In particular, the DCF degradation kinetic constant (k) of optimal 0.5% 1T/2H MS/BOC under the synergistic effect of ultrasound and light is 0.057 min-1, which is 8.1 and 6.3 times higher than those of BiOCl (0.007 min-1) and 0.5% 2H MS/BOC (0.009 min-1). Moreover, the H2 evolution rate of 0.5% 1T/2H MS/BOC is 122.5 μmol g-1 h-1, which is also higher than those of BiOCl (45.8 μmol g-1 h-1) and 2H MS/BOC (49.5 μmol g-1 h-1). The dramatic improvement in the DCF degradation and H2 evolution piezo-photocatalytic performance of 1T/2H MS/BOC catalysts is ascribed to the built-in polarization electric field and abundance of active sites of 1T/2H MS/BOC as well as the advantageous band structure between BiOCl and 1T/2H MoSe2. Additionally, three probable degradation pathways of DCF were put forward from the results of liquid chromatography-mass spectrometry (LCMS) and density functional theory (DFT) calculations. This study provides the design strategy of high efficiency piezo-photocatalysts in environmental purification and energy-generation fields based on phase and band structure engineering.
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Affiliation(s)
- Mianmian Wu
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Nan Li
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Minghao Shi
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Guifang Sun
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Wenjing Shen
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Qingfei Li
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
| | - Jiangquan Ma
- Jiangsu Province Advanced Catalysis and Green Manufacturing Collaborative Innovation Center, Changzhou University, Changzhou 213164, China.
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48
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Fu M, Dou H, Zhai W, Hou B, Wu C, Meng W, Wu N, Zhang Z, Weng TC, Yu Y, Wang HT. Enhancing UV-C Photoelectron Lifetimes for Avalanche-like Photocurrents in Carbon-Doped Bi 3O 4Cl Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37377206 DOI: 10.1021/acsami.3c03331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Interlayer electric fields in two-dimensional (2D) materials create photoelectron protecting barriers useful to mitigate electron-hole recombination. However, tuning the interlayer electric field remains challenging. Here, carbon-doped Bi3O4Cl (C:Bi3O4Cl) nanosheets are synthesized using a gas phase protocol, and n-type carriers are acquired as confirmed by the transconductance polarity of nanosheet field effect transistors. Thin C:Bi3O4Cl nanosheets show excellent 266 nm photodetector figures of merit, and an avalanche-like photocurrent is demonstrated. Decaying behaviors of photoelectrons pumped by a 266 nm laser pulse (266 nm photoelectrons) are observed using transient absorption spectroscopy, and a significant 266 nm photoelectron lifetime quality in C:Bi3O4Cl is presented. Built C:Bi3O4Cl models suggest that the interlayer electric field can be boosted by two different carbon substitutions at the inner and outer bismuth sites. This work reports a facile approach to increase the interlayer electric field in Bi3O4Cl for future UV-C photodetector applications.
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Affiliation(s)
- Minghui Fu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Hongbin Dou
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Wenbo Zhai
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Bingsen Hou
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Congcong Wu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Wei Meng
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Nan Wu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Zhuo Zhang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Tsu-Chien Weng
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Yi Yu
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
| | - Hung-Ta Wang
- School of Physical Science and Technology, ShanghaiTech University, 393 Middle Huaxia Road, Pudong, Shanghai 201210, China
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49
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Wang R, Zhou L, Wang W. Temperature, Doping, and Chemical Potential Tuning Intrinsic Defects Concentration in Bi 2MoO 6: GGA + U Method. ACS OMEGA 2023; 8:21162-21171. [PMID: 37332826 PMCID: PMC10268639 DOI: 10.1021/acsomega.3c02161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 05/25/2023] [Indexed: 06/20/2023]
Abstract
Using the GGA + U method, the formation energy and concentration of intrinsic defects in Bi2MoO6 are explored under different chemical conditions, with/without doping, from 120 to 900 K. We find that the intrinsic defect and carrier concentration can be deduced from the small range of calculated Fermi levels in the diagram of formation energy vs Fermi level under different conditions. Once the doping conditions or/and temperature are determined, the corresponding EF is only limited to a special region in the diagram of formation energy vs Fermi level, from which the magnitude relationship of defects concentration can be directly derived from their formation energy. The lower the defect formation energy is, the higher the defect concentration is. With EF moving under different doping conditions, the intrinsic defect concentration changes accordingly. At the same time, the highest electron concentration at the relative O-poor (point HU) with only intrinsic defects confirms its intrinsic n-type behavior. Moreover, upon A-/D+ doping, EF moves closer to VBM/CBM for the increasing concentration of holes/electrons. The electron concentration can also be further improved after D+ doping, indicating that D+ doping under O-poor chemical growth conditions is positive to improve its photogenerated carriers. This provides us with a method to adjust the intrinsic defect concentration and deepens our knowledge about comprehension and application of the diagram of formation energy vs Fermi level.
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Affiliation(s)
- Rui Wang
- Henan
Key Laboratory of Big Data Analysis and Processing, School of Computer
and Information Engineering, Henan University, Kaifeng 475001, China
| | - Liming Zhou
- Henan
Key Laboratory of Big Data Analysis and Processing, School of Computer
and Information Engineering, Henan University, Kaifeng 475001, China
| | - Wentao Wang
- Guizhou
Provincial Key Laboratory of Computational Nano-Material Science, Guizhou Education University, Guiyang 550018, China
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50
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Yang Z, Zhuo Q, Wang W, Guo S, Chen J, Li Y, Lv S, Yu G, Qiu Y. Fabrication and characterizations of Zn-doped SnO 2-Ti 4O 7 anode for electrochemical degradation of hexafluoropropylene oxide dimer acid and its homologues. JOURNAL OF HAZARDOUS MATERIALS 2023; 455:131605. [PMID: 37196440 DOI: 10.1016/j.jhazmat.2023.131605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/01/2023] [Accepted: 05/08/2023] [Indexed: 05/19/2023]
Abstract
Hexafluoropropylene oxide dimer acid (HFPO-DA) and its homologues, as perfluorinated ether alkyl substances with strong antioxidant properties, have rarely been reported by electrooxidation processes to achieve good results. Herein, we report the use of an oxygen defect stacking strategy to construct Zn-doped SnO2-Ti4O7 for the first time and enhance the electrochemical activity of Ti4O7. Compared with the original Ti4O7, the Zn-doped SnO2-Ti4O7 showed a 64.4% reduction in interfacial charge transfer resistance, a 17.5% increase in the cumulative rate of •OH generation, and an enhanced oxygen vacancy concentration. The Zn-doped SnO2-Ti4O7 anode exhibited high catalytic efficiency of 96.4% for HFPO-DA within 3.5 h at 40 mA/cm2. Hexafluoropropylene oxide trimer and tetramer acid exhibit more difficult degradation due to the protective effect of the -CF3 branched chain and the addition of the ether oxygen atom leading to a significant increase in the C-F bond dissociation energy. The degradation rates of 10 cyclic degradation experiments and the leaching concentrations of Zn and Sn after 22 electrolysis experiments demonstrated the good stability of the electrodes. In addition, the aqueous toxicity of HFPO-DA and its degradation products was evaluated. This study analyzed the electrooxidation process of HFPO-DA and its homologues for the first time, and provided some new insights.
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Affiliation(s)
- Zehong Yang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Qiongfang Zhuo
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China; Guangdong Provincial Key Laboratory of Environmental Pollution Control and Remediation Technology, Sun Yat-sen University, Guangzhou 510275, China; Dongguan Key Laboratory of Emerging Contaminants, Dongguan 523808, Guangdong, China.
| | - Wenlong Wang
- School of Materials Science and Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Shuting Guo
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Jianfeng Chen
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Yanliang Li
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Sihao Lv
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
| | - Gang Yu
- Advanced Interdisciplinary Institute of Environment and Ecology, Beijing Normal University, Zhuhai 519000, Guangdong, China
| | - Yongfu Qiu
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, Guangdong, China
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