1
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Lv S, Guo F, Li K, Wang D, Gao H, Song C. The synergistic effect of Cl doping and Bi coupling to promote the carrier separation of BiOBr for efficient photocatalytic nitrogen reduction. J Colloid Interface Sci 2025; 677:831-841. [PMID: 39126801 DOI: 10.1016/j.jcis.2024.08.017] [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: 07/09/2024] [Revised: 08/01/2024] [Accepted: 08/03/2024] [Indexed: 08/12/2024]
Abstract
Photocatalytic nitrogen reduction reaction (NRR) is a sustainable process for ammonia synthesis under mild conditions. However, photocatalytic NRR activity and are generally limited by inefficient carrier separation and transfer. Therefore, parallel engineering of bulk phase doping and surface coupling is critical to achieving the goal of efficient NRR. In this study, Cl doped BiOBr nanosheet assemblies (BiOBr/Cl) were constructed in delicately designed deep eutectic solvents (DESs), combined with ionothermal methods at low temperatures and Bi3+ exsolution reduction strategy at high temperatures. The unique liquid state and reducibility of DESs induce the reduction of Bi3+ and the in situ coupling of Bi quantum dots at the surface of BiOBr/Cl nanosheets along with the construction of Bi-BiOBr/Cl nanosheet assemblies. The experimental results show that Cl doping could reduce the exciton dissociation energy and promote its dissociation to free carriers. Bi quantum dots could form tightly coupled Schottky junction with BiOBr/Cl enabling the efficient and unidirectional transmission of photogenerated electrons from BiOBr/Cl to metal Bi. The formed electron deficient region at Schottky interface promotes the adsorption and activation of N2. The hierarchical structure of Bi-BiOBr/Cl nanosheet assembly benefits to providing more N2 adsorption active sites. The DFT calculation shows that the accumulation of high concentration of active hydrogen in Bi-BiOBr/Cl leads to a significant decrease of energy barrier of the first step hydrogenation of N2. Bi-BiOBr/Clis more inclined to adsorb nitrogen for NRR in comparison with H* for hydrogen production. The synergistic effect of Cl doping and Bi coupling result in a high NRR activity of Bi-BiOBr/Cl photocatalyst of 6.67 mmol·g-1·h-1, which was 11.3 times higher than that of initial BiOBr. This study provides a promising strategy for designing highly active NRR photocatalysts with high efficiency carrier dissociation and transport.
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Affiliation(s)
- Shuhua Lv
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China
| | - Fengjuan Guo
- College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China
| | - Kaiding Li
- College of Biological and Chemical Engineering, Qilu Institute of Technology, Jinan 250200, PR China
| | - Debao Wang
- College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China.
| | - Hongtao Gao
- College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China.
| | - Caixia Song
- College of Materials Science and Engineering, Qingdao University of Science & Technology, Qingdao 266042, PR China.
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2
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Yang Z, Xiao H, Mao Y, Zhang H, Lu Y, Hu Z. Amplifying chlorinated phenol decomposition via Dual-Pathway O 2 Activation: The impact of zirconium loading on BiOCl. J Colloid Interface Sci 2024; 668:171-180. [PMID: 38677206 DOI: 10.1016/j.jcis.2024.04.159] [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: 02/17/2024] [Revised: 04/18/2024] [Accepted: 04/22/2024] [Indexed: 04/29/2024]
Abstract
The effectiveness of photocatalytic molecular oxygen (O2) activation in pollutant removal relies on the targeted production of reactive oxygen species (ROS). Herein, we demonstrate the dual-pathway activation of O2 on BiOCl through zirconium (Zr) loading. The incorporation of Zr onto the surface of BiOCl not only leads to an increased generation of oxygen vacancies (OV) but also fosters a coupling between the d electrons of Zr and OV, forming dual-active sites known as Zr-oxygen vacancies (Zr-OV). Generally, OV adsorbs O2 and transfers one electron directly to form superoxide radicals (•O2-). Contrary to the conventional single-electron direct activation of O2 to form •O2-, Zr-OV exhibits more flexible coordination and superior electron-donating capabilities. It facilitates O2 conversion to peroxide radicals (O22-) and enables the subsequent generation of •O2- from O22-, significantly promotes the dechlorination and mineralization efficiency of chlorophenol under visible light. This study presents a straightforward strategy to precisely regulate ROS production by expanding pathways, shedding light on the critical role of managing ROS generation for effective pollutant purification.
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Affiliation(s)
- Zhiping Yang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China
| | - Hongmei Xiao
- Key State Laboratory of Industrial Vent Gas Reuse, The Southwest Research & Design Institute of the Chemical Industry, Chengdu 610225, China
| | - Yudie Mao
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China
| | - Hai Zhang
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China
| | - Yixin Lu
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 610031, China.
| | - Zhao Hu
- Ministry of Education, State-Local Joint Laboratory for Comprehensive Utilization of Biomass, Center for R&D of Fine Chemicals, Guizhou University, Guiyang, Guizhou 550025, China.
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3
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Zhu ZT, Zhou BW, Sun ZD, Ma JX, Wang X, Zhang M. Theoretical investigation of 2D/2D van der Waals SbPO 4/BiOCl xBr 1-x heterojunctions for photocatalytic water splitting. Phys Chem Chem Phys 2024; 26:21668-21676. [PMID: 39087867 DOI: 10.1039/d4cp01644k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/02/2024]
Abstract
Bismuth halogenoxide (BiOX)-based heterojunctions have garnered considerable attention recently due to their potential to enhance photocatalytic performance. However, the predominant focus on II-type heterojunctions has posed challenges in achieving the requisite band edge positions for efficient water splitting. In this investigation, stable van der Waals SbPO4/BiOClxBr1-x heterojunctions were constructed theoretically by using density-functional theory (DFT). Our findings demonstrate that SbPO4 can modulate the formation of Z-scheme heterojunctions with BiOClxBr1-x. The structural properties of BiOX were preserved, while reaching excellent photocatalytic capabilities with high redox capacities. Further investigation unveiled that the band edge positions of the heterojunctions fully satisfy the oxidation-reduction potential of water. Moreover, these heterojunctions exhibit notable absorption efficiency in the visible range, with absorption increasing as x decreases. Our research provides valuable theoretical insights for the experimental synthesis of high-performance BiOX-based photocatalysts for water splitting, leveraging the unique properties of SbPO4. These insights contribute to the advancement of clean energy technology.
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Affiliation(s)
- Zi Tao Zhu
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Bo Wei Zhou
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Zheng Dong Sun
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Jia Xin Ma
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Xiao Wang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
| | - Meng Zhang
- School of Physics, East China University of Science and Technology, Shanghai 200237, China.
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4
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He Y, Men D, Pang Y, Guo H, Gu J, Li A. Sample Fabrication of BiOCl Nanosheets with Low Specific Surface Area for Efficient Photocatalytic Degradation of Organic Wastewater. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024. [PMID: 39073836 DOI: 10.1021/acs.langmuir.4c01507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Abstract
BiOCl photocatalyst with excellent performance has been prepared by a simple liquid-solid phase transition method. Three BiOCl-x (x = 0.5, 0.75, 1.0) photocatalysts were obtained by changing the amount of HCl in the preparation process. The main dominant crystal planes are (001), (002), and (003). Their forbidden bandwidths are reduced to 2.81, 2.89, and 2.84 eV. The samples were characterized by X-ray diffractometer, high-resolution field emission scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, X-ray photoelectron spectroscopy, Fourier infrared spectrometry, UV-vis diffuse reflection spectrometer, and UV-vis spectrophotometer. The degradation mechanism of BiOCl-x on Rhodamine B(RhB) has been investigated by quenching experiments on active materials. ·O2- was the primary degradation agent. When the dosage of HCl was 0.75 mL, the degradation effect of RhB was the best under the same experimental conditions. In visible light, RhB was almost completely degraded within 15 min, demonstrating an excellent photocatalytic degradation efficiency.
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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
| | - Dongsheng Men
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Yuxiang Pang
- Hebei Key Laboratory of Applied Chemistry, School of Environmental and Chemical Engineering, Yanshan University, Qinhuangdao 066004, Hebei, China
| | - Huaijiao Guo
- 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
- Key Laboratory of Metastable Materials Science and Technology(MMST), 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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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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6
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Guo S, Shu G, Luo H, Kuang X, Zheng L, Wang C, Zhou CA, Song L, Ma K, Yue H. Low-Cytotoxic Core-Sheath ZnO NWs@TiO 2-xN y Triggered Piezo-photocatalytic Antibacterial Activity. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38709954 DOI: 10.1021/acsami.4c04500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
Sonophotodynamic antimicrobial therapy (SPDAT) is recognized as a highly efficient biomedical treatment option, known for its versatility and remarkable healing outcomes. Nevertheless, there is a scarcity of sonophotosensitizers that demonstrate both low cytotoxicity and exceptional antibacterial effectiveness in clinical applications. In this paper, a novel ZnO nanowires (NWs)@TiO2-xNy core-sheath composite was developed, which integrates the piezoelectric effect and heterojunction to build dual built-in electric fields. Remarkably, it showed superb antibacterial effectiveness (achieving 95% within 60 min against S. aureus and ∼100% within 40 min against E. coli, respectively) when exposed to visible light and ultrasound. Due to the continuous interference caused by light and ultrasound, the material's electrostatic equilibrium gets disrupted. The modification in electrical properties facilitates the composite's ability to attract bacterial cells through electrostatic forces. Moreover, Zn-O-Ti and Zn-N-Ti bonds formed at the interface of ZnO NWs@TiO2-xNy, further enhancing the dual internal electric fields to accelerate the excited carrier separation to generate more reactive oxygen species (ROS), and thereby boosting the antimicrobial performance. In addition, the TiO2 layer limited Zn2+ dissolution into solution, leading to good biocompatibility and low cytotoxicity. Lastly, we suggest a mechanistic model to offer practical direction for the future development of antibacterial agents that are both low in toxicity and high in efficacy. In comparison to the traditional photodynamic therapy systems, ZnO NWs@TiO2-xNy composites exhibit super piezo-photocatalytic antibacterial activity with low toxicity, which shows great potential for clinical application as an antibacterial nanomaterial.
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Affiliation(s)
- Shanhong Guo
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Guoqiang Shu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hongjie Luo
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xia Kuang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lirong Zheng
- Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
| | - Chao Wang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Chang-An Zhou
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lei Song
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Kui Ma
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hairong Yue
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065, China
- Institute of New Energy and Low-Carbon Technology, Sichuan University, Chengdu 610207, China
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7
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Wang S, Song D, Liao L, Li M, Li Z, Zhou W. Surface and interface engineering of BiOCl nanomaterials and their photocatalytic applications. Adv Colloid Interface Sci 2024; 324:103088. [PMID: 38244532 DOI: 10.1016/j.cis.2024.103088] [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: 09/17/2023] [Revised: 11/29/2023] [Accepted: 01/07/2024] [Indexed: 01/22/2024]
Abstract
BiOCl materials have received much attention because of their unique optical and electrical properties. Still, their unsatisfactory catalytic performance has been troubling researchers, limiting the application of BiOCl-based photocatalysts. Therefore, many researchers have studied the adjustment of BiOCl-based materials to enhance photocatalytic efficiency. This review focuses on surface and interface engineering strategies for boosting the photocatalytic performance of BiOCl-based nanomaterials, including forming oxygen vacancy defects, constructing metal/BiOCl, and the fabrication of semiconductor/BiOCl nanocomposites. The photocatalytic applications of the above composites are also concluded in photodegradation of aqueous pollutants, photocatalytic NO removal, photo-induced H2 production, and CO2 reduction. Special emphasis has been given to the modification methods of BiOCl and photocatalytic mechanisms to provide a more detailed understanding for researchers in the fields of energy conversion and materials sciences.
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Affiliation(s)
- Shijie Wang
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, PR China
| | - Dongxue Song
- School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, PR China
| | - Lijun Liao
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, PR China.
| | - Mingxia Li
- School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry, Ministry of Education of the People's Republic of China, Heilongjiang University, Harbin 150080, PR China.
| | - Zhenzi Li
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, PR China.
| | - Wei Zhou
- Shandong Provincial Key Laboratory of Molecular Engineering School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250353, PR China.
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Verma A, Dhanaraman E, Chen WT, Fu YP. Optimization of Intercalated 2D BiOCl Sheets into Bi 2WO 6 Flowers for Photocatalytic NH 3 Production and Antibiotic Pollutant Degradation. ACS APPLIED MATERIALS & INTERFACES 2023; 15:37540-37553. [PMID: 37486794 DOI: 10.1021/acsami.3c07489] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Photocatalytic N2 fixation is a complex reaction, thereby prompting researchers to design and analyze highly efficient materials. Herein, one-pot hydrothermal Bi2WO6-BiOCl (BW-BiOCl) heterojunctions were synthesized by varying the molar ratio of tungsten: chlorine precursor. Major morphological transformations in BiOCl were observed wherein it turned from thick sheets ∼230 nm in pure BiOCl to ∼30 nm in BW-BiOCl. This was accompanied by extensive growth of {001} facets verified from X-ray diffraction (XRD) and field-emission scanning electron microscopy (FESEM) analyses. A p-n heterojunction was formed between Bi2WO6 and BiOCl evidenced via photoluminescence (PL), time-resolved photoluminescence (TRPL), photocurrent response, and electrochemical impedance spectroscopy (EIS) analyses. The formation of heterojunction between Bi2WO6 and BiOCl led to the reduction of the work function in the BW-BiOCl 0.25 hybrid confirmed via ultraviolet photoelectron spectroscopy (UPS) analysis. BW-BiOCl 0.25 could produce ammonia up to 345.1 μmol·L-1·h-1 owing to the formation of a robust heterojunction with an S-scheme carrier transport mechanism. Recycle tests resulted in no loss in N2 reduction activities with post-catalytic analysis, showcasing the high stability of the synthesized heterojunction. Novel performance was owed to its excellent chemisorption of N2 gas on the heterojunction surface verified by N2-temperature programmed desorption (TPD). BW-BiOCl 0.25 also displayed a superior rate constant of 3.03 × 10-2 min-1 for 90 min CIP degradation time, higher than pristine BiOCl and Bi2WO6. Post-photocatalytic Fourier transform infrared (FTIR) spectroscopy of BW-BiOCl 0.25 revealed the presence of C-H stretching peaks in the range of 2850-2960 cm-1 due to adsorbed CIP and methanol species in CIP degradation and N2 fixation, respectively. This also confirmed the enhanced adsorption of reacting species onto the heterojunction surface.
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Affiliation(s)
- Atul Verma
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
| | - Esakkinaveen Dhanaraman
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
| | - Wen-Ting Chen
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
| | - Yen-Pei Fu
- Department of Materials Science and Engineering, National Dong Hwa University, Hualien 97401, Taiwan
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Deng Y, Xu M, Jiang X, Wang J, Tremblay PL, Zhang T. Versatile iodine-doped BiOCl with abundant oxygen vacancies and (110) crystal planes for enhanced pollutant photodegradation. ENVIRONMENTAL RESEARCH 2023; 216:114808. [PMID: 36379237 DOI: 10.1016/j.envres.2022.114808] [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: 07/20/2022] [Revised: 09/27/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Crystal plane regulation, defect engineering, and element doping can effectively solve the problems of large band gaps, poor light absorption, and fast recombination of BiOCl. In this work, iodine-doped BiOCl (I/BiOCl) nanowafers with abundant (110) crystal planes and oxygen vacancies (OV) were prepared by a simple hydrothermal method and assessed for pollutant photodegradation. I/BiOCl with a molar ratio of I to Cl of 0.6 (I0.6/BiOCl) degraded under visible light 95.8% of the toxic dye rhodamine B and 85.1% of the persistent antibiotic tetracycline in 5 and 10 min, respectively. In comparison, unmodified BiOCl photodegraded only between 42.0% and 48.2% of these critical water pollutants. Furthermore, I0.6/BiOCl was highly stable with most of its photocatalytic activity remaining after 4 cycles. Three reasons explain the excellent photodegradation properties of I0.6/BiOCl. First, the doped photocatalyst grew abundant (110) crystal planes, which inhibits the recombination of photogenerated electron-hole pairs. Second, the large quantity of OV present in I0.6/BiOCl increased active sites for reactive oxygen species generation, improved photogenerated charge separation, and pollutants adsorption. Lastly, I0.6/BiOCl had a modified electronic band structure enhancing light absorption. Overall, these results describe a promising photocatalyst capable of degrading efficiently major pollutants with different structures.
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Affiliation(s)
- Yichao Deng
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Mengying Xu
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, PR China; Shaoxing Institute for Advanced Research, Wuhan University of Technology, Shaoxing, 312300, PR China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Xiangyang Jiang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Junting Wang
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Pier-Luc Tremblay
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, PR China; Shaoxing Institute for Advanced Research, Wuhan University of Technology, Shaoxing, 312300, PR China.
| | - Tian Zhang
- School of Chemistry, Chemical Engineering, and Life Science, Wuhan University of Technology, Wuhan, 430070, PR China; Shaoxing Institute for Advanced Research, Wuhan University of Technology, Shaoxing, 312300, PR China; School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan, 430070, PR China; Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya, 572024, PR China.
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10
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Dong W, Liang E, Zhang Q, Li R, Wang Y, Liu J, Zhang X, Wang Y, Fan C. Controllable Synthesis of BiOCl with Z-Scheme (001)/(110) Facet Homojunction and their Photocatalytic Killing Effect on HePG2 Cells in vitro. Photochem Photobiol 2023; 99:83-91. [PMID: 35614843 DOI: 10.1111/php.13657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 05/23/2022] [Indexed: 01/25/2023]
Abstract
In this study, a set of BiOCl with controllable ratios of (001) and (110) facets was prepared by adjusting the content of diethylene glycol (DEG) during the preparation process. The degradation experiment of bisphenol A (BPA) shows that under simulated sunlight, when the ratio of (001) to (110) is 0.61, BiOCl (BOC-2) has the best degradation activity, which can degrade 96.2% BPA within 20 min. After theoretical calculations and experimental characterization, a Z-scheme (001)/(110) facet homojunction is proposed. Then, three typical samples were selected to test the biological toxicity of HepG2 cells and the activity of killing HepG2 cells under ultraviolet light conditions. Studies have found that exposed facets play a more important role in the biotoxicity of BiOCl to cells; with a (001)/(110) ratio of 0.61, BOC-2 exhibits excellent endocytosis and phototoxicity but no obvious dark cytotoxicity, while with a (001)/(110) ratio of 0.15, BiOCl (BOC-4) has poor endocytosis and strong cytotoxicity under dark conditions. Through reactive oxygen species (ROS) and lactate dehydrogenase (LDH) assay detection, the process of photocatalytic killing cells of BOC-2 more looks like an apoptosis mechanism, while BOC-4 mainly causes cell necrosis.
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Affiliation(s)
- Wei Dong
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Erli Liang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Qiong Zhang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Rui Li
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Yunfang Wang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Jianxin Liu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Xiaochao Zhang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Yawen Wang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
| | - Caimei Fan
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan, Shanxi, China
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11
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Wang L, Miao Z, Bi F, Xiao S, Zhao L, Li Y, Kong L, Li Y, Yang J, Zhang X, Gai G. One-pot room-temperature synthesis of a BiOCl hierarchical microsphere assembled from nanosheets with exposed {001} facets for enhanced photosensitized degradation. RSC Adv 2022; 12:35905-35922. [PMID: 36545104 PMCID: PMC9753103 DOI: 10.1039/d2ra06627k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022] Open
Abstract
BiOCl hierarchical microspheres assembled from nanosheets with exposed {001} facets were successfully synthesized using PEG-2000 as template by a one-pot room-temperature hydrolysis method. The PEG-modified BiOCl photocatalyst exhibits a significantly enhanced RhB photosensitized degradation activity under visible light. After 10 min white LED irradiation, the degradation efficiency of RhB by the PEG-modified BiOCl sample S 0.07 reaches 99.5%. The degradation rate constant of the PEG-modified sample S 0.07 over RhB is 0.4568 min-1, which is 6.76 times that of the unmodified sample S 0 (0.0676 min-1). After 4 min of xenon lamp (λ ≥ 420 nm) irradiation, the degradation rate of RhB by S 0.07 is almost 100%. The exposed {001} facets with surface defects contribute to the superior adsorption capacity of BiOCl towards RhB, which immensely accelerates the electron transfer efficiency from the excited RhB into the conduction band of BiOCl, forming superoxide radical (˙O2 -) active species to degrade the pollutants. Moreover, the superior RhB-sensitized BiOCl system provides high photocatalytic degradation activity over MO. This work provides a facile and efficient BiOCl synthesis method that is conducive to large-scale production and simultaneously opens up new ideas for the synthesis of other photocatalysts.
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Affiliation(s)
- Liyan Wang
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Zhiqiang Miao
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Fei Bi
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Shanshan Xiao
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Li Zhao
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Yongtao Li
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Lingwei Kong
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Yingqi Li
- Key Laboratory of Polyoxometalate and Reticular Material Chemistry of Ministry of Education, Department of Chemistry, Northeast Normal UniversityChangchun 130024P. R. China
| | - Jingxiu Yang
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Xuejian Zhang
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
| | - Guangqing Gai
- Key Laboratory of Building Energy-Saving Technology Engineering of Jilin Provincial, School of Materials Science and Engineering, Jilin Jianzhu UniversityChangchun 130118P. R. China
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Li Y, Zhang J, Chen L, Yin W, Li M, Chen X, Liu L, Zhu C. Construction of flower-like Zn2+/BiOBr with enhanced visible photocatalytic activity for the degradation of levofloxacin. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.110277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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13
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Cui Y, Guo P, Wang F, Dang P, Wang C, Jing P, Pu Y, Tao X. Self-Doping Based Facet Junctions and Oxygen Vacancies in Ferroelectric Bi 3Ti xNb 2-xO 9 Nanosheets for Boosting Photocatalytic Degradation and Antibacterial Activity. ACS APPLIED MATERIALS & INTERFACES 2022; 14:51819-51834. [PMID: 36349934 DOI: 10.1021/acsami.2c12026] [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: 06/16/2023]
Abstract
Constructing facet junction in semiconductor photocatalysts has been demonstrated as an effective method to promote charge-carrier separation and suppress carrier recombination. Herein, we proposed a novel but facile self-doping strategy to regulate the crystal facet exposure ratio in ferroelectric Bi3TixNb2-xO9 single-crystalline nanosheets, thereby optimizing its facet junction effect. Through tuning the atomic ratio of Ti and Nb, the exposure ratio of {001} and {110} crystal planes in Bi3TixNb2-xO9 nanosheets can be delicately modulated, and more {110} facets were exposed with the increase of the Ti/Nb atomic ratio as evidenced by the X-ray diffraction and scanning electron microscopy results. A facet junction between {110} and {001} crystal planes was verified based on the density functional theory calculation and photodeposition experiment results. Photogenerated electrons tend to accumulate in {110}, while holes gathered in {001} crystal planes. Owing to the optimal facet junction effect, the sample of Ti1.05 shows the most efficient charge-carrier separation and transportation compared to Ti0.95 and Ti1.00 as supported by the photoluminescence, surface photovoltage, photoelectrochemistry, and electron paramagnetic resonance (EPR) results. In addition, the oxygen vacancy arising from the inequivalent substitution of Nb5+ by Ti4+ as proved by X-ray photoelectron spectroscopy and EPR results and the enhanced ferroelectricity supported by P-E loops can also assist charge-carrier separation and migration. Benefiting from these properties, Ti1.05 outperformed Ti0.95 and Ti1.00 in the photodegradation of organic dye and antibiotic molecules. Meanwhile, the excellent antibacterial activity of Ti1.05 under visible light was also demonstrated by the Escherichia coli sterilization experiment. This work not only presents a novel pathway to adjust the facet junction but also provides new deep insights into the crystal facet engineering in ferroelectrics as photocatalysts.
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Affiliation(s)
- Yongfei Cui
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Peng Guo
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Fenghui Wang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Peipei Dang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Cuicui Wang
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Panpan Jing
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Yongping Pu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science &Technology, Xi'an710021, Shaanxi, P. R. China
| | - Xiaoma Tao
- School of Physics and Technology, Guangxi University, Nanning530004, Guangxi, P. R. China
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Guan C, Hou T, Nie W, Zhang Q, Duan L, Zhao X. Facet synergy dominant Z-scheme transition in BiOCl with enhanced 1O 2 generation. CHEMOSPHERE 2022; 307:135663. [PMID: 35835240 DOI: 10.1016/j.chemosphere.2022.135663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/01/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
BiOCl powders with different morphology were obtained through self-assembling. Their photocatalytic performance was tested through degradation of organic dye and mechanism of photocatalytic for obtained samples were investigated. Relevant characterization demonstrated that facet synergy was a main reason of photocatalytic performance promotion due to changed facet exposure and proportion under self-assembling. Theory and experimental analysis manifested that synergistic facet stimulated Z scheme transition in samples with lower (001) facet proportion, which provided favorable condition of 1O2 generation and simultaneously generated prominent charge separation. This work unveiled the facet synergy dominant photocatalytic performance improvement in self-assembling system of BiOCl and verified decisive role of facet proportion in constructing Z-scheme facet junction, which also prompted possibility of improving 1O2 generation through facet engineering under self-assembling.
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Affiliation(s)
- Chongshang Guan
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Tian Hou
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Wuyang Nie
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Qian Zhang
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Libing Duan
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China
| | - Xiaoru Zhao
- MOE Key Laboratory of Material Physics and Chemistry Under Extraordinary Conditions, Shaanxi Key Laboratory of Condensed Matter Structures and Properties, Department of Applied Physics, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an, 710072, People's Republic of China.
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15
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Gao P, Huang S, Tao K, Li Z, Feng L, Liu Y, Zhang L. Synthesis of adjustable {312}/{004} facet heterojunction MWCNTs/Bi 5O 7I photocatalyst for ofloxacin degradation: Novel insights into the charge carriers transport. JOURNAL OF HAZARDOUS MATERIALS 2022; 437:129374. [PMID: 35897183 DOI: 10.1016/j.jhazmat.2022.129374] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 05/27/2023]
Abstract
Multi-wall carbon nanotubes (MWCNTs) with high electrical conductivity are commonly accounted as the ideal additives to enhance the charge surface migration efficiency in photocatalysis. Theoretically, the MWCNTs-modified binary photocatalysts have potential for the change of nanocrystal structure. Herein, we reports an adjustable {312}/{004}facet heterojunction MWCNTs/Bi5O7I nanocomposite. Interestingly, the synergistic effect of {312}/{004}facet heterojunction and MWCNTs can effectively accelerate the spatial charge carriers transport. A novel {312}/{004}facet "S-scheme" pathway was proven to be the dominated pathway for the enhancement of spatial charge carriers. As a result, the MWCNTs-{312}/{004}Bi5O7I composites exhibited superior photocatalytic oxidation efficiency for a representative antibiotics ofloxacin photodegradation. Density functional theory (DFT) calculation and LC-MS/MS analysis confirmed that the possible dealkylation and oxidation pathways could be found in OFL degradation. This work provides novel insights for the relationship between charge carrier transport and facet structure-property.
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Affiliation(s)
- Peng Gao
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Shaojiang Huang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Kang Tao
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Zexin Li
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Li Feng
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
| | - Yongze Liu
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China
| | - Liqiu Zhang
- Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083, China.
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Fan Y, Zhang C, Mamatkulov S, Ruzimuradov O, Low J. Semiconductor facet junctions for photocatalytic CO 2 reduction. PURE APPL CHEM 2022. [DOI: 10.1515/pac-2022-0204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Photocatalytic carbon dioxide (CO2) conversion has been recognized as one of the promising strategies for unraveling current environmental and energy problems attributed to the growing fossil fuel consumption of the human society because it can directly harness incident sunlight energy for converting waste CO2 into valuable compounds. Increasing attention has been provoked to the semiconductor facet junction photocatalysts due to their unique feature in enhancing the photogenerated electron–hole pair utilization toward improving the photocatalytic CO2 conversion performance. In the past decade, significant breakthroughs in the semiconductor facet junction photocatalysts for photocatalytic CO2 conversion. In this review, we give a brief introduction on the development and the idea of the semiconductor facet junction photocatalysts. Then, the unique advantages of the semiconductor facet junction photocatalysts for photocatalytic CO2 conversion are summarized. Subsequently, the recent development of semiconductor facet junction photocatalysts in photocatalytic CO2 conversion is overviewed. We end this review by presenting the perspectives and challenges in this field for its future advancement toward practical applications. This review is expected to push forward the development of not only photocatalytic CO2 conversion but also other energy and environmental photocatalytic applications.
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Affiliation(s)
- Yisong Fan
- Turin Polytechnic University in Tashkent , Kichik Khalqa Yoli 17 , Tashkent 100095 , Uzbekistan
- The Key Laboratory of Photonic Devices and Materials, Anhui Institute of Optics and Fine Mechanics, HFIPS, Chinese Academy of Sciences , Hefei , Anhui , P. R. China
| | - Chao Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation, Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
| | - Shavkat Mamatkulov
- Turin Polytechnic University in Tashkent , Kichik Khalqa Yoli 17 , Tashkent 100095 , Uzbekistan
- Institute of Materials Science of Uzbekistan Academy of Sciences , Ch. Aytmatova street 2B , Tashkent 100084 , Uzbekistan
| | - Olim Ruzimuradov
- Turin Polytechnic University in Tashkent , Kichik Khalqa Yoli 17 , Tashkent 100095 , Uzbekistan
- Institute of Materials Science of Uzbekistan Academy of Sciences , Ch. Aytmatova street 2B , Tashkent 100084 , Uzbekistan
| | - Jingxiang Low
- Hefei National Laboratory for Physical Sciences at the Microscale, Collaborative Innovation, Center of Chemistry for Energy Materials (iChEM), School of Chemistry and Materials Science, National Synchrotron Radiation Laboratory, University of Science and Technology of China , Hefei , Anhui 230026 , P. R. China
- Multidisciplinary Platform of Advanced, Engineering, Chemical Engineering Discipline, School of Engineering, Monash University , Bandar Sunway 47500 , Subang Jaya , Selangor , Malaysia
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Hao L, Zhang T, Sang H, Jiang S, Zhang J, Yang J. Advances in facet-dependent photocatalytic properties of BiOCl catalyst for environmental remediation. REV INORG CHEM 2022. [DOI: 10.1515/revic-2022-0015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Bismuth chloride oxide (BiOCl) is a typical V-VI-VII ternary oxide material, which is one of the widely studied metal oxides due to its unique surface, electronic and photocatalytic properties. However, the broad bandgap and the large number of photogenerated electron-hole pair complexes of BiOCl limit its photocatalytic efficiency. Since the photocatalytic performance of BiOCl is highly dependent on its exposed crystallographic facets, research attention has increasingly focused on the different structures and properties possessed by different crystallographic facets of BiOCl. This article reviews the basic principles of using different crystalline surfaces of BiOCl materials to enhance photocatalytic activity, summarizes the applications of BiOCl single-crystal catalysts and composite catalysts in the environmental field, and provides an outlook on the challenges and new research directions for future development in this emerging frontier area. It is hoped that the crystalline surface-related photocatalysis of BiOCl can be used to provide new guidance for the rational design of novel catalysts for various energy and environment-related applications.
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Affiliation(s)
- Linjing Hao
- School of Ecology and Environment , Zhengzhou University , Henan 450001 , P. R. China
- International Joint Laboratory of Environment and Resources of Henan Province , Henan 450001 , P. R. China
| | - Tingting Zhang
- School of Ecology and Environment , Zhengzhou University , Henan 450001 , P. R. China
- International Joint Laboratory of Environment and Resources of Henan Province , Henan 450001 , P. R. China
| | - Haoran Sang
- School of Ecology and Environment , Zhengzhou University , Henan 450001 , P. R. China
- International Joint Laboratory of Environment and Resources of Henan Province , Henan 450001 , P. R. China
| | - Suyu Jiang
- School of Chemical Engineering , Zhengzhou University , Henan 450001 , P. R. China
- Research Center of Heterogeneous Catalysis & Engineering Sciences , Zhengzhou University , Henan 450001 , P. R. China
| | - Jie Zhang
- School of Ecology and Environment , Zhengzhou University , Henan 450001 , P. R. China
- International Joint Laboratory of Environment and Resources of Henan Province , Henan 450001 , P. R. China
- Research Centre of Engineering and Technology for Synergetic Control of Environmental Pollution and Carbon Emissions of Henan Province , Henan 450001 , P. R. China
| | - Jinghe Yang
- School of Chemical Engineering , Zhengzhou University , Henan 450001 , P. R. China
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Song G, Wu X. Flower-Like ZnFe2O4/BiOCl Microspheres with Highly Exposed (001) Facet for Photocatalytic Reduction of CO2 in Cyclohexanol. Catal Letters 2022. [DOI: 10.1007/s10562-022-04031-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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20
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Kokilavani S, Syed A, Elgorban AM, Bahkali AH, Al-Shwaiman HA, Varma RS, Das A, Khan SS. Designing Z-scheme AgIO 4 nanorod embedded with Bi 2S 3 nanoflakes for expeditious visible light photodegradation of congo red and rhodamine B. CHEMOSPHERE 2022; 294:133755. [PMID: 35090849 DOI: 10.1016/j.chemosphere.2022.133755] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/11/2022] [Accepted: 01/24/2022] [Indexed: 06/14/2023]
Abstract
The present study describes the enhanced photodegradation of organic pollutant dyes, congo red (CR) and rhodamine B (RhB) dyes under visible light irradiation. AgIO4 nanorods decorated on Bi2S3 nanoflakes in various proportions were synthesized via sono-chemical route wherein the deposition of varying amounts of AgIO4 on Bi2S3 plays a pivotal role in improving the photodegradation ability. The characterization of the as-synthesized nanohybrids was assessed by XRD, UV-vis DRS, PL, EIS, ESR, FT-IR, XPS, HR-TEM, FE-SEM, N2 adsorption and desorption techniques. The effect of initial CR and RhB dye concentration, reaction pH and usage of nanohybrid concentration were investigated where 30%-AgIO4/Bi2S3 exhibited excellent visible light photodegradation of 95.58% for CR and 96.11% for RhB dyes at 140 min and 100 min respectively. The superoxide (•O2-) and hydroxyl radicals (•OH) played predominant role in the photodegradation of CR and RhB which is experimentally confirmed by radical trapping experiments. Also, the photocatalysts exhibited good photo stability and excellent reusability. The TOC analysis confirmed the complete mineralization of CR and RhB dyes by the nanohybrid and the formation of possible intermediate and degradation pathway was delineated based on GC/MS analysis. The outstanding photodegradation performance were ascribed to the Z-scheme charge transfer path, which effectively promotes the separation and transfer of e-/h+ pairs, resulting in a strong redox activity of the accumulated charge to decompose organic dyes during the degradation reaction. The study suggested that the nanohybrid can be utilized for the removal of organic pollutants from the contaminated water bodies.
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Affiliation(s)
- S Kokilavani
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India
| | - Asad Syed
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Abdallah M Elgorban
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Ali H Bahkali
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Hind A Al-Shwaiman
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - Rajender S Varma
- Regional Center of Advanced Technologies and Materials, Czech Advanced Technology and Research Institute, Palacký University in Olomouc, Slechtitelů 27, Olomouc, 783 71, Czech Republic
| | - Arunava Das
- Faculty of Life Sciences, Mandsaur University, SH-31, Mhow - Neemuch By-pass Square, Rewas-Dewda Road, Mandsaur, Madhya Pradesh, India
| | - S Sudheer Khan
- Nanobiotechnology Laboratory, Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Tamil Nadu, India.
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Zhang L, Meng Y, Shen H, Li J, Yang C, Xie B, Xia S. High-Efficiency Photocatalytic Ammonia Synthesis by Facet Orientation-Supported Heterojunction Cu 2O@BiOCl[100] Boosted by Double Built-In Electric Fields. Inorg Chem 2022; 61:6045-6055. [PMID: 35412822 DOI: 10.1021/acs.inorgchem.2c00058] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
In this work, the advantages of in situ loading, heterojunction construction, and facet regulation were integrated based on the poly-facet-exposed BiOCl single crystal, and a facet-oriented supported heterojunction of Cu2O and BiOCl was fabricated (Cu2O@BiOCl[100]). The photocatalytic nitrogen reduction reaction (pNRR) activity of Cu2O@BiOCl[100] was as high as 181.9 μmol·g-1·h-1, which is 4.09, 7.13, and 1.83 times that of Cu2O, BiOCl, and Cu2O@BiOCl-ran (Cu2O randomly supported on BiOCl). Combined with the results of the photodeposition experiment, X-ray photoelectron spectroscopy characterization, and DFT calculation, the mechanism of Cu2O@BiOCl[100] for pNRR was discussed. When Cu2O directionally loaded on the [100] facet of BiOCl, electrons generated by Cu2O will be transmitted to the [100] facet of BiOCl through Z-scheme electron transmission. Due to the directional separation characteristics of charge in BiOCl, the electrons transmitted from Cu2O are enriched on the [001] facet of BiOCl, which will together with the original electrons generated by pristine BiOCl act on pNRR, thus greatly improving the activity of photocatalytic ammonia synthesis. Thus, a new construction scheme of biphasic semiconductor heterojunction was proposed, which provides a reference research idea for designing and synthesizing high-performance photocatalysts for nitrogen reduction.
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Affiliation(s)
- Lianyang Zhang
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, College of Textiles and Fashion, Shaoxing University, Shaoxing 312000, Zhejiang, PR China
| | - Yue Meng
- Department of Life and Health Sciences, Huzhou College, Huzhou 313000, China
| | - Hui Shen
- Zhejiang Huayuan Pigment Co., Ltd., Deqing 310024, Zhejiang, PR China
| | - Jinhua Li
- Zhejiang Huayuan Pigment Co., Ltd., Deqing 310024, Zhejiang, PR China
| | - Chunfang Yang
- Zhejiang Huayuan Pigment Co., Ltd., Deqing 310024, Zhejiang, PR China
| | - Bo Xie
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
| | - Shengjie Xia
- Department of Chemistry, College of Chemical Engineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou 310014, PR China
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22
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Bismuth Oxychloride Nanomaterials Fighting for Human Health: From Photodegradation to Biomedical Applications. CRYSTALS 2022. [DOI: 10.3390/cryst12040491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Environmental pollution and various diseases seriously affect the health of human beings. Photocatalytic nanomaterials (NMs) have been used for degrading pollution for a long time. However, the biomedical applications of photocatalytic NMs have only recently been investigated. As a typical photocatalytic NM, bismuth oxychloride (BiOCl) exhibits excellent photocatalytic performance due to its unique layered structure, electronic properties, optical properties, good photocatalytic activity, and stability. Some environmental pollutants, such as volatile organic compounds, antibiotics and their derivatives, heavy metal ions, pesticides, and microorganisms, could not only be detected but also be degraded by BiOCl-based NMs due to their excellent photocatalytic and photoelectrochemical properties. In particular, BiOCl-based NMs have been used as theranostic platforms because of their CT and photoacoustic imaging abilities, as well as photodynamic and photothermal performances. However, some reviews have only profiled the applications of dye degradation, hydrogen or oxygen production, carbon dioxide reduction, or nitrogen fixation of BiOCl NMs. There is a notable knowledge gap regarding the systematic study of the relationship between BiOCl NMs and human health, especially the biomedical applications of BiOCl-based NMs. As a result, in this review, the recent progress of BiOCl-based photocatalytic degradation and biomedical applications are summarized, and the improvement of BiOCl-based NMs in environmental and healthcare fields are also discussed. Finally, a few insights into the current status and future perspectives of BiOCl-based NMs are given.
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Wang X, Li X, Wang X, Zhao M, Chen W, Wu H, Jia J. Immobilization of bismuth oxychloride on cellulose nanocrystal for sunlight-driven superior photosensitized degradation. Int J Biol Macromol 2022; 206:398-408. [PMID: 35245571 DOI: 10.1016/j.ijbiomac.2022.02.159] [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: 12/13/2021] [Revised: 01/29/2022] [Accepted: 02/25/2022] [Indexed: 11/16/2022]
Abstract
Semiconductor photocatalysis is considered to be an important green technology for sewage treatment. However, most of the pollutant degradation studies used simulated sunlight in a laboratory, which has great energy cost with limited applications in industry. Herein, cellulose nanocrystal (CNC) with rich hydroxyl groups and high specific surface area are used as the matrix to construct composites with BiOCl, which improves the dispersibility with an increased number of oxygen vacancies on BiOCl. The obtained composite photocatalyst, i.e., BiOCl/CNC, showed an excellent performance with good recyclability. Within 30 min, 99% of RhB (20 mg/L) was degraded under simulated visible light and 94% under natural sunlight. The reaction system maintains excellent catalytic performance after being scaled up by 10×. Compared with reported BiOCl-based composites in literature, BiOCl/CNC had excellent photocatalytic activity for the RhB degradation with good recyclability. Subsequently, by identifying the active species, a reasonable photocatalytic mechanism was proposed for RhB degradation. This work developed an economical and effective visible light sensitive photocatalyst for the treatment of organic dyes in water.
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Affiliation(s)
- Xiaoxia Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China; Department of Chemistry, Changzhi University, Changzhi 046011, PR China
| | - Xueting Li
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Xinyu Wang
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Man Zhao
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Wenwen Chen
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
| | - Haishun Wu
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China
| | - Jianfeng Jia
- Key Laboratory of Magnetic Molecules & Magnetic Information Materials Ministry of Education, School of Chemical and Material Science, Shanxi Normal University, Taiyuan 030006, PR China.
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24
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Zhang H, Peng L, Li H, Su Y, Huang S. A novel Sn2Nb2O7/defective carbon nitride heterojunction photocatalyst: preparation and application for photocatalytic oxytetracycline removal. CrystEngComm 2022. [DOI: 10.1039/d2ce00427e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A traditional type-II Sn2Nb2O7/defective carbon nitride (HCN) heterojunction structure photocatalyst was constructed aiming to enhance the photocatalytic property of pyrochlores Sn2Nb2O7. Experimental analysis verified that a built-in electric field was...
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25
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Qiu J, Wang Y, Liu X. One-pot hydrothermal synthesis of CuBi 2O 4/BiOCl p–n heterojunction with enhanced photocatalytic performance for the degradation of tetracycline hydrochloride under visible light irradiation. NEW J CHEM 2022. [DOI: 10.1039/d1nj05470h] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The formation of a CuBi2O4/BiOCl p–n heterojunction enhances visible light absorption and promotes the separation of photogenerated electron–hole pairs.
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Affiliation(s)
- Juan Qiu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Yingdi Wang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
| | - Xiang Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, P. R. China
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26
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Lee MG, Yang JW, Kwon HR, Jang HW. Crystal facet and phase engineering for advanced water splitting. CrystEngComm 2022. [DOI: 10.1039/d2ce00585a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review covers the principles and recent advances in facet and phase engineering of catalysts for photocatalytic, photoelectrochemical, and electrochemical water splitting. It suggests the basis of catalyst design for advanced water splitting.
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Affiliation(s)
- Mi Gyoung Lee
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, M5S 1A4, Canada
| | - Jin Wook Yang
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hee Ryeong Kwon
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
| | - Ho Won Jang
- Department of Materials Science and Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- Advanced Institute of Convergence Technology, Seoul National University, Suwon, 16229, Republic of Korea
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27
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Qi K, Song M, Xie X, Wen Y, Wang Z, Wei B, Wang Z. CQDs/biochar from reed straw modified Z-scheme MgIn 2S 4/BiOCl with enhanced visible-light photocatalytic performance for carbamazepine degradation in water. CHEMOSPHERE 2022; 287:132192. [PMID: 34517240 DOI: 10.1016/j.chemosphere.2021.132192] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Revised: 08/27/2021] [Accepted: 09/05/2021] [Indexed: 06/13/2023]
Abstract
The application of environmental-friendly and sustainable green materials in constructing photocatalysts to degrade pharmaceuticals and personal care products (PPCPs) attracts more attention. Herein, biochar (BC) or biomass carbon quantum dots (CQDs) were used to modify MgIn2S4/BiOCl (MB) heterojunction photocatalyst with Z-scheme structure, and improved the photocatalytic degradation performance for carbamazepine (CBZ) in the aqueous solution. Both BC and CQDs could form electron transfer interface with MB heterojunction, resulting in the photodegradation rate of MgIn2S4/BiOCl/CQDs (MBC, 96.43%) and MgIn2S4/BiOCl/BC (MBB, 88.09%) to CBZ within 120 min visible-light irradiation, which were significantly higher than that of MB (65.84%). Moreover, photoelectrochemical and photoluminescence tests verified that CQDs could act as a bridge for storing and transferring electrons in the entire Z-scheme system. Thence, compared with MBB, MBC could produce more •OH and •O2- under the visible light, which was indicated by the results of radical quenching experiments and electron paramagnetic resonance. Interestingly, under the natural sunlight, the photocatalytic performance of MBC to CBZ was even better than under laboratory conditions. In addition, the TOC removal efficiencies of MBB and MBC could reach 85.09% and 93.79% respectively, and ECOSAR program was utilized to further evaluate the eco-toxicity of CBZ and the intermediates towards fish, daphnid, and green algae, indicating that the photocatalytic process involving MBB and MBC showed outstanding toxicity reduction performance. Finally, compared with other composites, MBB and MBC showed higher photocatalytic performance and lower energy consumption, which would provide a green strategy for biochar materials in the photocatalytic treatment of PPCPs in water.
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Affiliation(s)
- Kemin Qi
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Mengxi Song
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Xiaoyun Xie
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China.
| | - Yuan Wen
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Zirun Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Bin Wei
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
| | - Zhaowei Wang
- College of Earth and Environmental Sciences, Lanzhou University, Lanzhou, Key Laboratory for Environmental Pollution Prediction and Control, Gansu Province, China
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28
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Highly efficient and reusable BiOCl photocatalyst modulating by hydrogel immobilization and oxygen vacancies engineering. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119628] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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29
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Gao P, Yang Y, Yin Z, Kang F, Fan W, Sheng J, Feng L, Liu Y, Du Z, Zhang L. A critical review on bismuth oxyhalide based photocatalysis for pharmaceutical active compounds degradation: Modifications, reactive sites, and challenges. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125186. [PMID: 33516110 DOI: 10.1016/j.jhazmat.2021.125186] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 01/03/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
Pharmaceutical active compounds (PhACs), as a kind of widely used pharmaceutical drugs, has attracted much attention. The bismuth oxyhalides (BiOX)-based photocatalysis can remove PhACs efficiently due to its unique layered structure, optical and electronic properties. Nevertheless, the rapid recombination of photogenerated electron-hole pairs, and the inherent instability of structure have limited its practical application. In order to solve these problems, recent modification studies tend to focus on facet control, elemental doping, bismuth-rich strategies, defect engineering and heterojunction. Therefore, the objective of this review is to summarize the recent developments in multiply modified strategies for PhACs degradation. The synthesis methods, photocatalytic properties and the enhancement mechanism are elaborated. Besides, based on theoretical calculation, the reactive sites of typical PhACs attacked by different reactive oxygen species were also proposed. Subsequently, challenges and opportunities in applications are also featured which include factors, viz., dissolution of halogen ions, instability under visible light, applications of real water/wastewater, intermediates and byproducts toxicity analysis of BiOX-based photocatalysis. Finally, the perspectives of BiOX-based photocatalysis for PhACs photodegradation in actual water applications are highlighted.
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Affiliation(s)
- Peng Gao
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Yuning Yang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Ze Yin
- Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse, Hebei Province Collaborative Innovation Center for Sustainable Utilization of Water Resources and Optimization of Industrial Structure, Department of Water Resource and Environment, Hebei GEO University, No. 136 Huai'an Road, Shijiazhuang 050031, Hebei, PR China
| | - Fengxin Kang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Waner Fan
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Jiayi Sheng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Li Feng
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China.
| | - Yongze Liu
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Ziwen Du
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China
| | - Liqiu Zhang
- Beijing Key Laboratory for Source Control Technology of Water Pollution, Engineering Research Center for Water Pollution Source Control and Eco-Remediation, Beijing Forestry University, Beijing 100083, PR China.
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30
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Xu Y, Fu H, Zhao L, Jian L, Liang Q, Xiao X. Insight into facet-dependent photocatalytic H 2O 2 production on BiOCl nanosheets. NEW J CHEM 2021. [DOI: 10.1039/d0nj05506a] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
The generation of H2O2 on BiOCl(001) originates from O2 reduction, while there are two pathways on BiOCl(010).
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Affiliation(s)
- Yating Xu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
| | - Hanping Fu
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
| | - Ling Zhao
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
| | - Lishan Jian
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
| | - Qingshuang Liang
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
| | - Xiufeng Xiao
- Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering
- College of Chemistry and Material Science
- Fujian Normal University
- Fuzhou
- China
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31
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Li H, Zhang J, Yang T, Wang Y, Gao H, Wang X, Chai Z. SnNb 2O 6/NiCo-LDH Z-scheme heterojunction with regulated oxygen vacancies obtained by engineering the crystallinity for efficient and renewable photocatalytic H 2 evolution. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01019k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
SnNb2O6/NiCo-LDH Z-scheme heterojunction with abundant oxygen vacancies exhibited highly activity and stability toward photocatalytic H2 evolution, ascribed to the regeneration of oxygen vacancy by engineering the crystallinity.
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Affiliation(s)
- Hui Li
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Jingyu Zhang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Ting Yang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Yinshu Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Hongyu Gao
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Xiaojing Wang
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
| | - Zhanli Chai
- Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, School of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot 010021, People's Republic of China
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32
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Guo J, Zhao W, Xiong D, Ye Y, Li S, Zhang B. A hydrolysis synthesis route for (001)/(102) coexposed BiOCl nanosheets with high visible light-driven catalytic performance. NEW J CHEM 2021. [DOI: 10.1039/d1nj03961j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The (001)/(102) co-exposed BiOCl nanosheet shows good adsorption of cationic dyes and high visible light-driven catalytic performance.
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Affiliation(s)
- Jingjing Guo
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
| | - Wei Zhao
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
| | - Dezhi Xiong
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
| | - Yao Ye
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
| | - Shibo Li
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
| | - Bo Zhang
- School of Materials Science and Engineering, Tianjin Chengjian University, Tianjin 300384, P. R. China
- Tianjin Key Laboratory of Building Green Functional Materials, Tianjin, 300384, P. R. China
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33
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Li H, Ai Z, Zhang L. Surface structure-dependent photocatalytic O 2 activation for pollutant removal with bismuth oxyhalides. Chem Commun (Camb) 2020; 56:15282-15296. [PMID: 33165493 DOI: 10.1039/d0cc05449f] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The purification of water and air by semiconductor photocatalysis is a rapidly growing area for academic research and industrial innovation, featured with ambient removal of organic or inorganic pollutants by using solar light as the energy source and atmospheric O2 as the green oxidant. Both charge transfer and energy transfer from excited photocatalysts can overcome the spin-forbidden nature of O2. Layered bismuth oxyhalides are a new group of two-dimensional photocatalysts with an appealing geometric and surface structure that allows the dynamic and selective tuning of O2 activation at the surface molecular level. In this Feature Article, we specifically summarize our recent progress in selective O2 activation by engineering surface structures of bismuth oxyhalides. Then, we demonstrate selective photocatalytic O2 activation of bismuth oxyhalides for environmental control, including water decontamination, volatile organic compound oxidation and nitrogen oxide removal, as well as selective catalytic oxidations. Challenges and opportunities regarding the design of photocatalysts with satisfactory performance for potential environmental control applications are also presented.
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Affiliation(s)
- Hao Li
- Key Laboratory of Pesticide & Chemical Biology of Ministry of Education, Institute of Environmental & Applied Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, China.
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