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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Zhang R, Jia X, Sun M, Liu X, Wang C, Yu X, Xing Y. Synergistic manipulation of sulfur vacancies and palladium doping of In 2S 3 for enhanced photocatalytic H 2 production. J Colloid Interface Sci 2025; 677:425-434. [PMID: 39096710 DOI: 10.1016/j.jcis.2024.07.242] [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: 04/09/2024] [Revised: 07/30/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
In this study, a simple one-pot synthesis process is employed to introduce Pd dopant and abundant S vacancies into In2S3 nanosheets. The optimized Pd-doped In2S3 photocatalyst, with abundant S vacancies, demonstrates a significant enhancement in photocatalytic hydrogen evolution. The joint modification of Pd doping and rich S vacancies on the band structure of In2S3 result in an improvement in both the light absorption capacity and proton reduction ability. It is worth noting that photogenerated electrons enriched by S vacancies can rapidly migrate to adjacent Pd atoms through an efficient transfer path constructed by Pd-S bond, effectively suppressing the charge recombination. Consequently, the dual-defective In2S3 shows an efficient photocatalytic H2 production rate of 58.4 ± 2.0 μmol·h-1. Additionally, further work has been conducted on other ternary metal sulfide, ZnIn2S4. Our findings provide a new insight into the development of highly efficient photocatalysts through synergistic defect engineering.
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Affiliation(s)
- Ruyu Zhang
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Xiaowei Jia
- College of Sciences, Hebei North University, Zhangjiakou 075000, PR China
| | - Mingliang Sun
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China
| | - Xianchun Liu
- College of Chemistry, Northeast Normal University, Changchun 130024, PR China.
| | - Cong Wang
- School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, 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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3
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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 2025; 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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4
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Ou Y, Du J, Wang C, Wu Q, Liang S, Ma H, Zhang X. Solution plasma-cobalt hydroxide-enabled nitrogen fixation. Chem Commun (Camb) 2024; 60:6893-6896. [PMID: 38874564 DOI: 10.1039/d4cc02102a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2024]
Abstract
Solution plasma-Co(OH)2 interaction significantly boosts nitrogen fixation and achieves a high concentration of NOx- at 9.42 mmol L-1. This surpasses the nitrogen content requirement of 7.67 mmol L-1 for commercial nutrient solutions, offering a sustainable approach for nitrogen fixation from nitrogen, water and electricity.
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Affiliation(s)
- Yangwenting Ou
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Jinglun Du
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Changhua Wang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Qi Wu
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Shuang Liang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - He Ma
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
| | - Xintong Zhang
- Key Laboratory of UV-Emitting Materials and Technology of Chinese Ministry of Education, Northeast Normal University, Changchun 130024, China.
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5
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Ali H, Liu M, Ali S, Ali A, Ismail PM, Ullah R, Ali S, Raziq F, Bououdina M, Hayat S, Ali U, Zhou Y, Wu X, Zhong L, Zhu L, Xiao H, Xia P, Qiao L. Constructing copper Phthalocyanine/Molybdenum disulfide (CuPc/MoS 2) S-scheme heterojunction with S-rich vacancies for enhanced Visible-Light photocatalytic CO 2 reduction. J Colloid Interface Sci 2024; 665:500-509. [PMID: 38547631 DOI: 10.1016/j.jcis.2024.03.110] [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: 02/01/2024] [Revised: 03/02/2024] [Accepted: 03/16/2024] [Indexed: 04/17/2024]
Abstract
Constructing a heterojunction by combining two semiconductors with similar band structures is a successful approach to obtaining photocatalysts with high efficiency. Herein, a CuPc/DR-MoS2 heterojunction involving copper phthalocyanine (CuPc) and molybdenum disulfide with S-rich vacancies (13.66%) is successfully prepared by the facile hydrothermal method. Experimental results and theoretical calculations firmly demonstrated that photoelectrons exhibit an S-scheme charge transfer mechanism in the CuPc/DR-MoS2 heterojunction. The S-scheme heterojunction system has proven significant advantages in promoting the charge separation and transfer of photogenerated carriers, enhancing visible-light responsiveness, and achieving robust photoredox capability. As a result, the optimized 3CuPc/DR-MoS2 S-scheme heterojunction exhibits photocatalytic yields of CO and CH4 at 200 and 111.6 μmol g-1h-1, respectively. These values are four times and 4.5 times greater than the photocatalytic yields of pure DR-MoS2. This study offers novel perspectives on the advancement of innovative and highly effective heterojunction photocatalysts.
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Affiliation(s)
- Haider Ali
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Min Liu
- SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University, Nanjing 210096, China
| | - Sharafat Ali
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Ahmad Ali
- Department of Chemistry, Abdul Wali Khan University Mardan, KPK, 23200, Pakistan
| | - Pir Muhammad Ismail
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Rizwan Ullah
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sajjad Ali
- Energy, Water, and Environment Research Lab, Prince Sultan University, Riyadh, Kingdom of Saudi Arabia.
| | - Fazal Raziq
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Mohamed Bououdina
- Energy, Water, and Environment Research Lab, Prince Sultan University, Riyadh, Kingdom of Saudi Arabia
| | - Salman Hayat
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Usman Ali
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Yuanyuan Zhou
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Xiaoqiang Wu
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Li Zhong
- SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of Education Southeast University, Nanjing 210096, China
| | - Linyu Zhu
- Department of Material and Chemistry, Huzhou University, Huzhou 313000, China
| | - Haiyan Xiao
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Pengfei Xia
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China.
| | - Liang Qiao
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China.
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6
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Li S, Li J, Wang X, Sun Y, Tang Z, Gao X, Zhang H, Xie J, Yang Z, Yan YM. Energizing Co Active Sites via d-Band Center Engineering in CeO 2-Co 3O 4 Heterostructures: Interfacial Charge Transfer Enabling Efficient Nitrate Electrosynthesis. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311124. [PMID: 38258393 DOI: 10.1002/smll.202311124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2023] [Revised: 01/10/2024] [Indexed: 01/24/2024]
Abstract
The electrochemical nitrogen oxidation reaction (NOR) holds significant potential to revolutionize the traditional nitrate synthesis processes. However, the progression in NOR has been notably stymied due to the sluggish kinetics of initial N2 adsorption and activation processes. Herein, the research embarks on the development of a CeO2-Co3O4 heterostructure, strategically engineered to facilitate the electron transfer from CeO2 to Co3O4. This orchestrated transfer operates to amplify the d-band center of the Co active sites, thereby enhancing N2 adsorption and activation dynamics by strengthening the Co─N bond and diminishing the resilience of the N≡N bond. The synthesized CeO2-Co3O4 manifests promising prospects, showcasing a significant HNO3 yield of 37.96 µg h-1 mgcat -1 and an elevated Faradaic efficiency (FE) of 29.30% in a 0.1 m Na2SO4 solution at 1.81 V versus RHE. Further substantiating these findings, an array of in situ methodologies coupled with DFT calculations vividly illustrate the augmented adsorption and activation of N2 on the surface of CeO2-Co3O4 heterostructure, resulting in a substantial reduction in the energy barrier pertinent to the rate-determining step within the NOR pathway. This research carves a promising pathway to amplify N2 adsorption throughout the electrochemical NOR operations and delineates a blueprint for crafting highly efficient NOR electrocatalysts.
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Affiliation(s)
- Shuyuan Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jingxian Li
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xiaoxuan Wang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yanfei Sun
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Zheng Tang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Xueying Gao
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Huiying Zhang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Jiangzhou Xie
- School of Mechanical and Manufacturing Engineering, University of New South Wales, Sydney, New South Wales, 2052, Australia
| | - Zhiyu Yang
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
| | - Yi-Ming Yan
- State Key Laboratory of Organic-Inorganic Composites, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, P. R. China
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7
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Zhang S, Hou Y, Zhang L, Zhu H, Xiong J, Wang S, Liu T. A Novel Non-Fullerene D-A Interface with Two Asymmetrical Electron Acceptors Facilitates Charge and Energy Transfer for Effective Carbon Dioxide Reduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2311816. [PMID: 38396322 DOI: 10.1002/smll.202311816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/09/2024] [Indexed: 02/25/2024]
Abstract
Converting carbon dioxide (CO2) into high-value chemicals using solar energy remains a formidable challenge. In this study, the CSC@PM6:IDT6CN-M:IDT8CN-M non-fullerene small-molecule organic semiconductor is designed with highly efficient electron donor-acceptor (D-A) interface for photocatalytic reduction of CO2. Atomic Force Microscope and Transmission Electron Microscope images confirmed the formation of an interpenetrating fibrillar network after combination of donor and acceptor. The CO yield from the CSC@PM6:IDT6CN-M:IDT8CN-M reached 1346 µmol g-1 h-1, surpassing those of numerous reported inorganic photocatalysts. The D-A structure effectively facilitated charge separation to enable electrons transfer from the PM6 to IDT6CN-M:IDT8CN-M. Meanwhile, attributing to the dipole moments of the strong intermolecular interactions between IDT6CN-M and IDT8CN-M, the intermolecular forces are enhanced, and laminar stacking and π-π stacking are strengthened, thereby reinforcing energy transfer between acceptor molecules and significantly enhanced charge separation. Moreover, the strong internal electric field in the D-A interface enhanced the excited state lifetime of PM6:IDT6CN-M:IDT8CN-M. In situ diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) analysis demonstrated that carboxylate (COOH*) is the predominant intermediate during CO2 reduction, and possible pathways of CO2 reduction to CO are deduced. This study presents a novel approach for designing materials with D-A interface to achieve high photocatalytic activity.
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Affiliation(s)
- Shiming Zhang
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Yanping Hou
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
- Key Laboratory of Environmental Protection (Guangxi University), Education Department of Guangxi Zhuang Autonomous Region, Nanning, 530004, China
| | - Libin Zhang
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Hongxiang Zhu
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Jianhua Xiong
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
- Key Laboratory of Environmental Protection (Guangxi University), Education Department of Guangxi Zhuang Autonomous Region, Nanning, 530004, China
| | - Shuangfei Wang
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
| | - Tao Liu
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, College of Light Industry and Food Engineering, Guangxi University, Nanning, 530004, China
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8
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Li Y, Li R, Sun Z, Guo L, Wang Y, Ma X, Li H, Lei T, Fan C, Liu J. Promoted photocatalytic N 2 fixation to ammonia over floatable TiO 2/Bi/Carbon cloth through relay pathway. J Colloid Interface Sci 2024; 664:198-209. [PMID: 38460384 DOI: 10.1016/j.jcis.2024.02.214] [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: 01/26/2024] [Revised: 02/27/2024] [Accepted: 02/29/2024] [Indexed: 03/11/2024]
Abstract
The floatable photocatalyst at N2-water interface allows the adequate supply of N2 reactant and the utilization of photothermal energy for photocatalytic N2 fixation, however, the presence of non-volatile NO3- product poses a challenge to the stability as it easily covers the catalytic active sites. Herein, a floatable TiO2/Bi/CC (Carbon cloth) photocatalyst was designed, in which the non-volatile NO3- can be transformed to the volatile NH3 via the newly synergistic relay photocatalysis pathway (N2 → NO3- → NH3) between TiO2 (N2 → NO3-) and Bi (NO3- → NH3). Attractively, the spontaneous NO3- → NO2- step occurs on Bi component to promote the relay pathway performing. Therefore, TiO2/Bi/CC system displays better long-term stability than TiO2/CC, and moreover, it achieves a higher NH3 yield of 8.28 mmol L-1 h-1 g-1 (i.e. 4.14 mmol h-1 m-2) than that 1.46 mmol L-1 h-1 g-1 for TiO2/Bi powder. Importantly, the N2 fixation products by TiO2/Bi/CC effectively promote lettuce growth and enhance lettuce nutrient contents, which further validates the feasibility of this system in large-scale application of crop cultivation.
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Affiliation(s)
- Yaru Li
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Rui Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
| | - Zijun Sun
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Lijun Guo
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Yawen Wang
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Xiaoli Ma
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Houfen Li
- College of Environmental Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Tao Lei
- College of Hydraulic Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, PR China.
| | - Caimei Fan
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China
| | - Jianxin Liu
- College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, PR China.
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9
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Ali S, Ali S, Khan I, Zahid M, Muhammad Ismail P, Ismail A, Zada A, Ullah R, Hayat S, Ali H, Kamal MR, Alibrahim KA, Bououdina M, Hasnain Bakhtiar S, Wu X, Wang Q, Raziq F, Qiao L. Molecular modulation of interfaces in a Z-scheme van der Waals heterojunction for highly efficient photocatalytic CO 2 reduction. J Colloid Interface Sci 2024; 663:31-42. [PMID: 38387184 DOI: 10.1016/j.jcis.2024.02.081] [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: 11/12/2023] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
The construction of van der Waals (vdW) heterojunctions is a key approach for efficient and stable photocatalysts, attracting marvellous attention due to their capacity to enhance interfacial charge separation/transfer and offer reactive sites. However, when a vdW heterojunction is made through an ex-situ assembly, electron transmission faces notable obstacles at the components interface due to the substantial spacing and potential barrier. Herein, we present a novel strategy to address this challenge via wet chemistry by synthesizing a functionalized graphene-modulated Z-scheme vdW heterojunction of zinc phthalocyanine/tungsten trioxide (xZnPc/yG-WO3). The functionalized G-modulation forms an electron "bridge" across the ZnPc/WO3 interface to improve electron transfer, get rid of barriers, and ultimately facilitating the optimal transfer of excited photoelectrons from WO3 to ZnPc. The Zn2+ in ZnPc picks up these excited photoelectrons, turning CO2 into CO/CH4 (42/22 μmol.g-1.h-1) to deliver 17-times better efficiency than pure WO3. Therefore, the introduction of a molecular "bridge" as a means to establish an electron transfer conduit represents an innovative approach to fabricate efficient photocatalysts designed for the conversion of CO2 into valued yields.
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Affiliation(s)
- Sharafat Ali
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Sajjad Ali
- Energy, Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Imran Khan
- School of Physics and Electronics, Central South University, 410083 Changsha, China
| | - Muhammad Zahid
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Pir Muhammad Ismail
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Ahmed Ismail
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Amir Zada
- Department of Chemistry, Abdul Wali Khan University Mardan, Khyber Pakhtunkhwa 23200, Pakistan
| | - Rizwan Ullah
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Salman Hayat
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Haider Ali
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Muhammad Rizwan Kamal
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China
| | - Khuloud A Alibrahim
- Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University,Riyadh 11671, Saudi Arabia
| | - Mohamed Bououdina
- Energy, Water, and Environment Lab, College of Humanities and Sciences, Prince Sultan University, Riyadh 11586, Saudi Arabia
| | - Syedul Hasnain Bakhtiar
- School of Integrated Circuits, Wuhan National Laboratory for Optoelectronics, Engineering Research Center for Functional Ceramics of the Ministry of Education, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xiaoqiang Wu
- School of Mechanical Engineering, Chengdu University, Chengdu 610106, China
| | - Qingyuan Wang
- Institute for Advanced Study, Chengdu University, Chengdu, China.
| | - Fazal Raziq
- School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China.
| | - Liang Qiao
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou 313001, China; School of Physics, University of Electronic Science and Technology of China, Chengdu 610054, China.
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10
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Liang Y, Zhang L, Huang C, Xiong J, Liu T, Yao S, Zhu H, Yang Q, Zou B, Wang S. New breakthrough in rapid degradation of lignin derivative compounds · A novel high stable and reusable green organic photocatalyst. J Colloid Interface Sci 2024; 662:426-437. [PMID: 38359506 DOI: 10.1016/j.jcis.2024.02.083] [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: 12/04/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/17/2024]
Abstract
The pulp and paper sectors are thriving yet pose significant environmental threats to water bodies, mainly due to the substantial release of pollutants. Lignin-derived compounds are among the most problematic of these contaminants. To address this issue, we present our initial results on utilizing organic semiconductor photocatalysis under visible light for treating lignin-derived compounds. Our investigation has been centered around creating a green and cost-effective organic semiconductor photocatalyst. This catalyst is designed using a structure of bagasse cellulose spheres to support PM6 (poly[(2,6-(4,8-bis(5-(2-ethylhexyl)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene))-co-(1,3-di(5-thiophene-2-yl)-5,7-bis(2-ethylhexyl)-benzo[1,2-c:4,5-c']dithiophene-4,8-dione))]: MeIC (3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-cyclopentane-1,3-dione[c]-1-methyl-thiophe))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-d:2',3'-d']-s-indaceno[1,2-b:5,6-b']-dithiophene)). This photocatalyst demonstrates remarkable efficiency, achieving over 91 % degradation of lignin-derived compounds. The superior photocatalytic performance is attributed to three main factors: (1) The ability of PM6 to broaden MeIC's absorption range from 300 to 800 nm, allowing for effective utilization of visible light; (2) the synergistic interaction between PM6 and MeIC, which ensures compatible energy levels and a vast, evenly spread surface area, promoting charge mobility and extensive donor/acceptor interfaces. This synergy significantly enhances the generation and transport of carriers, resulting in a high production of free radicals that accelerate the decomposition of organic materials; (3) The deployment of PM6:MeIC on biomass-based carriers increases the interaction surface with the organic substances. Notably, PM6: MeIC showcases outstanding durability, with its degradation efficiency remaining between 84 % and 91 % across 100 cycles. This study presents a promising approach for designing advanced photocatalysts aimed at degrading common pollutants in papermaking wastewater.
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Affiliation(s)
- Yinna Liang
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Libin Zhang
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Ciyuan Huang
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Jianhua Xiong
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Tao Liu
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
| | - Shangfei Yao
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Hongxiang Zhu
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Qifeng Yang
- Guangxi Bossco Environmental Protection Technology Co., Ltd., Nanning 530007, China
| | - Bingsuo Zou
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China
| | - Shuangfei Wang
- School of Light Industry Technology and Engineering, State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures, School of Resources, Environment and Materials, Guangxi University, Nanning 530004, China.
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11
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Tan XQ, Zhang P, Chen B, Mohamed AR, Ong WJ. Synergistic effect of dual phase cocatalysts: MoC-Mo 2C quantum dots anchored on g-C 3N 4 for high-stability photocatalytic hydrogen evolution. J Colloid Interface Sci 2024; 662:870-882. [PMID: 38382371 DOI: 10.1016/j.jcis.2024.02.027] [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: 12/05/2023] [Revised: 01/27/2024] [Accepted: 02/03/2024] [Indexed: 02/23/2024]
Abstract
The extensive examination of hexagonal molybdenum carbide (β-Mo2C) as a non-noble cocatalyst in the realm of photocatalytic H2 evolution is predominantly motivated by its exceptional capacity to adsorb H+ ions akin to Pt and its advantageous conductivity characteristics. However, the H2 evolution rate of photocatalysts modified with β-Mo2C is limited as a result of their comparatively low ability to release H through desorption. Therefore, a facile method was employed to synthesize carbon intercalated dual phase molybdenum carbide (MC@C) quantum dots (ca. 3.13 nm) containing both α-MoC and β-Mo2C decorated on g-C3N4 (gCN). The synthesis process involved a simple and efficient combination of sonication-assisted self-assembly and calcination techniques. 3-MC@C/gCN exhibited the highest efficiency in generating H2, with a rate of 4078 µmol g-1h-1 under 4 h simulated sunlight irradiation, which is 13 times higher than pristine gCN. Furthermore, from the cycle test, 3-MC@C/gCN showcased exceptional photochemical stability of 65 h, as it maintained a H2 evolution rate of 40 mmol g-1h-1. The heightened level of activity observed in the 3-MC@C/gCN system can be ascribed to the synergistic effects of MoC-Mo2C that arise due to the existence of a carbon layer. The presence of a carbon layer enhanced the transmission of photoinduced electrons, while the MoC-Mo2C@C composite served as active sites, thereby facilitating the H2 production reaction of gCN. The present study introduces a potentially paradigm-shifting concept pertaining to the exploration of novel Mo-based cocatalysts with the aim of augmenting the efficacy of photocatalytic H2 production.
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Affiliation(s)
- Xin-Quan Tan
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia; Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia
| | - Peipei Zhang
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Binghui Chen
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia; Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Gulei Innovation Institute, Xiamen University, Zhangzhou 363200, China
| | - Abdul Rahman Mohamed
- Low Carbon Economy (LCE) Research Group, School of Chemical Engineering, Universiti Sains Malaysia, Nibong Tebal, 14300 Pulau Pinang, Malaysia
| | - Wee-Jun Ong
- School of Energy and Chemical Engineering, Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia; Center of Excellence for NaNo Energy & Catalysis Technology (CONNECT), Xiamen University Malaysia, Selangor Darul Ehsan 43900, Malaysia; State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China; Gulei Innovation Institute, Xiamen University, Zhangzhou 363200, China; Shenzhen Research Institute of Xiamen University, Shenzhen 518057, China.
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12
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Bao T, Xi Y, Zhang C, Du P, Xiang Y, Li J, Yuan L, Yu C, Liu C. Highly efficient nitrogen fixation over S-scheme heterojunction photocatalysts with enhanced active hydrogen supply. Natl Sci Rev 2024; 11:nwae093. [PMID: 38577667 PMCID: PMC10989659 DOI: 10.1093/nsr/nwae093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 03/04/2024] [Accepted: 03/08/2024] [Indexed: 04/06/2024] Open
Abstract
Photocatalytic N2 fixation is a promising strategy for ammonia (NH3) synthesis; however, it suffers from relatively low ammonia yield due to the difficulty in the design of photocatalysts with both high charge transfer efficiency and desirable N2 adsorption/activation capability. Herein, an S-scheme CoSx/ZnS heterojunction with dual active sites is designed as an efficient N2 fixation photocatalyst. The CoSx/ZnS heterojunction exhibits a unique pocket-like nanostructure with small ZnS nanocrystals adhered on a single-hole CoSx hollow dodecahedron. Within the heterojunction, the electronic interaction between ZnS and CoSx creates electron-deficient Zn sites with enhanced N2 chemisorption and electron-sufficient Co sites with active hydrogen supply for N2 hydrogenation, cooperatively reducing the energy barrier for N2 activation. In combination with the promoted photogenerated electron-hole separation of the S-scheme heterojunction and facilitated mass transfer by the pocket-like nanostructure, an excellent N2 fixation performance with a high NH3 yield of 1175.37 μmol g-1 h-1 is achieved. This study provides new insights into the design of heterojunction photocatalysts for N2 fixation.
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Affiliation(s)
- Tong Bao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yamin Xi
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Chaoqi Zhang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Peiyang Du
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Yitong Xiang
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Jiaxin Li
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Ling Yuan
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Chengzhong Yu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, Brisbane 4072, Australia
| | - Chao Liu
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
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13
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Li Z, Li D, Feng Z, Lv S, Zhang Q, Yu Y, Tian Y, Huang R, Chen H, Zhang K, Dai H. Enhanced photocatalytic ammonia oxidation over WO 3@TiO 2 heterostructures by constructing an interfacial electric field. CHEMOSPHERE 2024; 355:141811. [PMID: 38554859 DOI: 10.1016/j.chemosphere.2024.141811] [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: 11/22/2023] [Revised: 02/28/2024] [Accepted: 03/25/2024] [Indexed: 04/02/2024]
Abstract
WO3 nanorods and xWO3@TiO2 (WO3/TiO2 mass ratio (x) = 1-5) photocatalysts were synthesized using the hydrothermal and sol-gel methods, respectively. The photocatalytic activities of xWO3@TiO2 for NH3 oxidation first increased and then decreased with a rise in TiO2 content. Among them, the heterostructured 3WO3@TiO2 photocatalyst showed the highest NH3 conversion (58 %) under the simulated sunlight irradiation, which was about two times higher than those of WO3 and TiO2. Furthermore, the smallest amounts of by-products (i.e., NO and NO2) were produced over 3WO3@TiO2. The enhancement in photocatalytic performance (i.e., NH3 conversion and N2 selectivity) of 3WO3@TiO2 was mainly attributed to the formed interfacial electric field between WO3 and TiO2, which promoted efficient separation and transfer of photogenerated charge carriers. Based on the results of reactive species trapping and active radical detection, photocatalytic oxidation of NH3 over 3WO3@TiO2 was governed by the photogenerated holes and superoxide radicals. This work combines two strategies of morphological regulation and interfacial electric field construction to simultaneously improve light utilization and photogenerated charge separation efficiency, which promotes the development of full-spectrum photocatalysts for the removal of ammonia.
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Affiliation(s)
- Zhaonian Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Daorong Li
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Zhanzhao Feng
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Shuqi Lv
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Qingxuan Zhang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Yanru Yu
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Ying Tian
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Runfeng Huang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Hongxia Chen
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China
| | - Kunfeng Zhang
- College of Environmental Engineering, Henan University of Technology, Zhengzhou, Henan, 450001, China.
| | - Hongxing Dai
- Beijing Key Laboratory for Green Catalysis and Separation, Key Laboratory of Advanced Functional Materials, Ministry of Education, Department of Chemical Engineering and Technology, College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, China; Key Laboratory of Beijing on Regional Air Pollution Control, College of Environmental Science and Engineering, Beijing University of Technology, Beijing, 100124, China.
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14
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Wang M, Wei G, Li R, Yu M, Liu G, Peng Y. Schottky Junctions with Bi@Bi 2MoO 6 Core-Shell Photocatalysts toward High-Efficiency Solar N 2-to-Ammonnia Conversion in Aqueous Phase. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:780. [PMID: 38727374 PMCID: PMC11085196 DOI: 10.3390/nano14090780] [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: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/12/2024]
Abstract
The photocatalytic nitrogen reduction reaction (NRR) in aqueous solution is a green and sustainable strategy for ammonia production. Nonetheless, the efficiency of the process still has a wide gap compared to that of the Haber-Bosch one due to the difficulty of N2 activation and the quick recombination of photo-generated carriers. Herein, a core-shell Bi@Bi2MoO6 microsphere through constructing Schottky junctions has been explored as a robust photocatalyst toward N2 reduction to NH3. Metal Bi self-reduced onto Bi2MoO6 not only spurs the photo-generated electron and hole separation owing to the Schottky junction at the interface of Bi and Bi2MoO6 but also promotes N2 adsorption and activation at Bi active sites synchronously. As a result, the yield of the photocatalytic N2-to-ammonia conversion reaches up to 173.40 μmol g-1 on core-shell Bi@Bi2MoO6 photocatalysts, as much as two times of that of bare Bi2MoO6. This work provides a new design for the decarbonization of the nitrogen reduction reaction by the utilization of renewable energy sources.
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Affiliation(s)
- Meijiao Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Guosong Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Renjie Li
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Meng Yu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
| | - Guangbo Liu
- Key Laboratory of Biofuels, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao 266101, China
| | - Yanhua Peng
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, China; (M.W.); (G.W.); (R.L.); (M.Y.)
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15
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Zhang X, Tan Y, Zhao J, Cai Z, Zhang J, Madhusudan P. NiFeB-assisted adsorption and activation of nitrogen to improve the photooxidation activity of zinc porphyrin. Chem Commun (Camb) 2024; 60:4298-4301. [PMID: 38530709 DOI: 10.1039/d4cc00249k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
This study effectively addresses the challenge of nitrogen adsorption and activation in photocatalytic nitrogen fixation by introducing an oxidizing co-catalyst, NiFeB hydroxides. The NiFeB hydroxides could provide reactive active sites and significantly enhance the nitrogen oxidation activity, offering a novel pathway for co-catalysts in nitrogen fixation reactions.
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Affiliation(s)
- Xuan Zhang
- Key Laboratory of Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, PR China.
| | - Yawen Tan
- Key Laboratory of Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, PR China.
| | - Juntao Zhao
- Key Laboratory of Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, PR China.
| | - Zixuan Cai
- Wuhan Jingkai Foreign Language School, Wuhan 430056, PR China
| | - Jun Zhang
- Key Laboratory of Green Chemical Process of Ministry of Education, Hubei Key Laboratory of Novel Reactor and Green Chemical Technology, School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430205, PR China.
| | - Puttaswamy Madhusudan
- Department of Civil and Environmental Engineering, Hanyang University, Seoul, South Korea.
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16
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Pournemati K, Habibi-Yangjeh A, Khataee A. Incorporation of Cu 5FeS 4 QDs with Abundant Oxygen Vacancy TiO 2 QDs/TiO 2 OVs: Double S-Scheme Photocatalysts for Effectual N 2 Conversion to NH 3 under Simulated Solar Light. Inorg Chem 2024; 63:6957-6971. [PMID: 38576059 DOI: 10.1021/acs.inorgchem.4c00440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Photocatalytic N2 conversion to NH3 is a green, sustainable pathway with renewable energy sources and carbon neutrality. In this research, ternary TiO2 QDs/TiO2 OVs/Cu5FeS4 nanocomposites were prepared by an easy and affordable procedure and utilized to produce clean ammonia energy without a sacrificial agent. The amount of produced green ammonia by the optimum nanocomposite achieved was 17,274 μmol L-1 g-1, which was approximately 20.9, 6.48, 4.45, 2.26, and 1.45 times higher than those of commercial TiO2, TiO2 QDs, TiO2 OVs, Cu5FeS4, and TiO2 QDs/TiO2 OVs photocatalysts, respectively. Lattice compatibility through the developed homojunction within TiO2 QDs/TiO2 OVs and the integration of Cu5FeS4 nanoparticles led to the establishment of a double S-scheme homo/heterojunction system, which improved the photocatalytic activity by maintaining electrons and holes with high oxidation and reduction power and greatly reduced the recombination of charges, which led to the acceleration of charge transfer and migration. Besides, the promoted surface area compared to the pure components, introducing oxygen vacancies, and reducing the particle size boosted the photocatalytic N2 conversion to NH3. The results of this research are a basis for the rational design of homojunction/heterojunction visible-light-responsive systems for photocatalytic nitrogen fixation reactions.
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Affiliation(s)
- Khadijeh Pournemati
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, 56199-13131 Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, 56199-13131 Ardabil, Iran
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, 51666-16471 Tabriz, Iran
- Department of Chemical Engineering, Istanbul Technical University, 34469 Maslak, Istanbul, Turkey
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17
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Yuan J, Feng W, Zhang Y, Xiao J, Zhang X, Wu Y, Ni W, Huang H, Dai W. Unraveling Synergistic Effect of Defects and Piezoelectric Field in Breakthrough Piezo-Photocatalytic N 2 Reduction. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2303845. [PMID: 37638643 DOI: 10.1002/adma.202303845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 08/27/2023] [Indexed: 08/29/2023]
Abstract
Piezo-photocatalysis is a frontier technology for converting mechanical and solar energies into crucial chemical substances and has emerged as a promising and sustainable strategy for N2 fixation. Here, for the first time, defects and piezoelectric field are synergized to achieve unprecedented piezo-photocatalytic nitrogen reduction reaction (NRR) activity and their collaborative catalytic mechanism is unraveled over BaTiO3 with tunable oxygen vacancies (OVs). The introduced OVs change the local dipole state to strengthen the piezoelectric polarization of BaTiO3 , resulting in a more efficient separation of photogenerated carrier. Ti3+ sites adjacent to OVs promote N2 chemisorption and activation through d-π back-donation with the help of the unpaired d-orbital electron. Furthermore, a piezoelectric polarization field could modulate the electronic structure of Ti3+ to facilitate the activation and dissociation of N2 , thereby substantially reducing the reaction barrier of the rate-limiting step. Benefitting from the synergistic reinforcement mechanism and optimized surface dynamics processes, an exceptional piezo-photocatalytic NH3 evolution rate of 106.7 µmol g-1 h-1 is delivered by BaTiO3 with moderate OVs, far surpassing that of previously reported piezocatalysts/piezo-photocatalysts. New perspectives are provided here for the rational design of an efficient piezo-photocatalytic system for the NRR.
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Affiliation(s)
- Jie Yuan
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Wenhui Feng
- Hunan Province Key Laboratory of Applied Environmental Photocatalysis, Changsha University, Changsha, 410022, P. R. China
| | - Yongfan Zhang
- College of Chemistry, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Jianyu Xiao
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Xiaoyan Zhang
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Yinting Wu
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Wenkang Ni
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
| | - Hongwei Huang
- Beijing Key Laboratory of Materials Utilization of Nonmetallic Minerals and Solid Wastes, National Laboratory of Mineral Materials, School of Materials Science and Technology, China University of Geosciences, Beijing, 100083, P. R. China
| | - Wenxin Dai
- State Key Laboratory of Photocatalysis on Energy and Environment, Fuzhou University, Fuzhou, 350116, P. R. China
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18
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Sharma M, Kumar A, Gill D, Jaiswal S, Patra A, Bhattacharya S, Krishnan V. Boosting Photocatalytic Nitrogen Fixation via Nanoarchitectonics Using Oxygen Vacancy Regulation in W-Doped Bi 2MoO 6 Nanosheets. ACS APPLIED MATERIALS & INTERFACES 2023; 15:55765-55778. [PMID: 37975858 DOI: 10.1021/acsami.3c12563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2023]
Abstract
Ammonia and nitrates are key raw materials for various chemical and pharmaceutical industries. The conventional methods like Haber-Bosch and Ostwald methods used in the synthesis of ammonia and nitrates, respectively, result in harmful emission of gases. In recent years, the photocatalytic fixation of N2 into NH3 and nitrates has become a hot topic since it is a green and cost-effective approach. However, the simultaneous production of ammonia and nitrates has not been studied much. In this regard, we have synthesized W-doped Bi2MoO6 nanosheets in various molar ratios and demonstrated their potential as efficient photocatalysts for the simultaneous production of NH3 and NO3- ions under visible light irradiation. It was found that one of the catalysts (BMWO0.4) having an optimal molar ratio of doped tungsten showed the best photocatalytic NH3 production (56 μmol h-1) without using any sacrificial agents along with the simultaneous production of NO3- ions at a rate of 7 μmol h-1. The enhanced photocatalytic activity of the synthesized photocatalysts could be ascribed to oxygen vacancy defects caused by Mo substitution by a more electronegative W atom. Furthermore, density functional theory calculations verified the alteration in the band gap after doping of W atoms and also showed a strong chemisorption of N2 over the photocatalyst surface leading to its activation and thereby enhancing the photocatalytic activity. Thus, the present work provides insights into the effect of structural distortions on tailoring the efficiency of materials used in photocatalytic N2 fixation.
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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 175075, India
| | - Ashish Kumar
- Department of Chemistry, Sardar Patel University Mandi, Mandi, Himachal Pradesh 175001, India
| | - Deepika Gill
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Shilpi Jaiswal
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462066, India
| | - Abhijit Patra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal, Madhya Pradesh 462066, India
| | - Saswata Bhattacharya
- Department of Physics, Indian Institute of Technology Delhi, New Delhi 110016, India
| | - Venkata Krishnan
- School of Chemical Sciences and Advanced Materials Research Center, Indian Institute of Technology Mandi, Kamand, Mandi, Himachal Pradesh 175075, India
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19
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Ismail PM, Ali S, Ali S, Li J, Liu M, Yan D, Raziq F, Wahid F, Li G, Yuan S, Wu X, Yi J, Chen JS, Wang Q, Zhong L, Yang Y, Xia P, Qiao L. Photoelectron "Bridge" in Van Der Waals Heterojunction for Enhanced Photocatalytic CO 2 Conversion Under Visible Light. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2303047. [PMID: 37363951 DOI: 10.1002/adma.202303047] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 06/11/2023] [Indexed: 06/28/2023]
Abstract
Constructing Van der Waals heterojunction is a crucial strategy to achieve excellent photocatalytic activity. However, in most Van der Waals heterojunctions synthesized by ex situ assembly, electron transfer encounters huge hindrances at the interface between the two components due to the large spacing and potential barrier. Herein, a phosphate-bridged Van der Waals heterojunction of cobalt phthalocyanine (CoPc)/tungsten disulfide (WS2 ) bridged by phosphate (xCoPc-nPO4 - -WS2 ) is designed and prepared by the traditional wet chemistry method. By introducing a small phosphate molecule into the interface of CoPc and WS2 , creates an electron "bridge", resulting in a compact combination and eliminating the space barrier. Therefore, the phosphate (PO4 - ) bridge can serve as an efficient electron transfer channel in heterojunction and can efficiently transmit photoelectrons from WS2 to CoPc under excited states. These excited photoelectrons are captured by the catalytic central Co2+ in CoPc and subsequently convert CO2 molecules into CO and CH4 products, achieving 17-fold enhancement on the 3CoPc-0.6PO4 - -WS2 sample compared to that of pure WS2 . Introducing a small molecule "bridge" to create an electron transfer channel provides a new perspective in designing efficient photocatalysts for photocatalytic CO2 reduction into valuable products.
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Affiliation(s)
- Pir Muhammad Ismail
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Sajjad Ali
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
| | - Sharafat Ali
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Jiahao Li
- State Key Laboratory of Physical Chemistry of Solid, Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Min Liu
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China
| | - Dong Yan
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Fazal Raziq
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Fazli Wahid
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
| | - Guojing Li
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
| | - Shuhua Yuan
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
| | - Xiaoqiang Wu
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Jiabao Yi
- Global Innovative Centre for Advanced Nanomaterials, School of Engineering, The University of Newcastle, Callaghan, NSW, 2308, Australia
| | - Jun Song Chen
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
| | - Qingyuan Wang
- School of Mechanical Engineering, Chengdu University, Chengdu, 610106, P. R. China
| | - Li Zhong
- SEU-FEI Nano-Pico Center, Key Laboratory of MEMS of Ministry of Education, Southeast University, Nanjing, 210096, P. R. China
| | - Ye Yang
- State Key Laboratory of Physical Chemistry of Solid, Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian, 361005, P. R. China
| | - Pengfei Xia
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
| | - Liang Qiao
- Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology, Huzhou, 313001, P. R. China
- School of Physics, University of Electronic Science and Technology of China, Chengdu, 610054, P. R. China
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20
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Liu T, Zhu W, Wang N, Zhang K, Wen X, Xing Y, Li Y. Preparation of Structure Vacancy Defect Modified Diatomic-Layered g-C 3 N 4 Nanosheet with Enhanced Photocatalytic Performance. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2302503. [PMID: 37344350 PMCID: PMC10460902 DOI: 10.1002/advs.202302503] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/29/2023] [Indexed: 06/23/2023]
Abstract
Structure self-modification of graphitic carbon nitride (g-C3 N4 ) without the assistance of other species has attracted considerable attention. In this study, the structure vacancy defect modified diatomic-layered g-C3 N4 nanosheet (VCN) is synthesized by thermal treatment of bulk g-C3 N4 in a quartz tube with vacuum atmosphere that will generate a pressure-thermal dual driving force to boost the exfoliation and formation of structure vacancy for g-C3 N4 . The as-prepared VCN possesses a large specific surface area with a rich pore structure to provide more active centers for catalytic reactions. Furthermore, the as-formed special defect level in VCN sample can generate a higher exciton density at photoexcitation stage. Meanwhile, the photogenerated charges will rapidly transfer to VCN surface due to the greatly shortened transfer path resulting from the ultrathin structure (≈1.5 nm), which corresponds to two graphite carbon nitride atomic layers. In addition, the defect level alleviates the drawback of enlarged bandgap caused by the quantum size effect of nano-scaled g-C3 N4 , resulting in a well visible-light utilization. As a result, the VCN sample exhibits an excellent photocatalytic performance both in hydrogen production and photodegradation of typical antibiotics.
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Affiliation(s)
- Tian Liu
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Wei Zhu
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Ning Wang
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Keyu Zhang
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
| | - Xue Wen
- School of ChemistryXi'an Jiaotong UniversityXi'an710049P. R. China
| | - Yan Xing
- Jilin Provincial Key Laboratory of Advanced Energy MaterialsDepartment of ChemistryNortheast Normal UniversityChangchun130024P. R. China
| | - Yunfeng Li
- College of Environmental and Chemical EngineeringXi'an Key Laboratory of Textile Chemical Engineering AuxiliariesXi'an Polytechnic UniversityXi'an710048P. R. China
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21
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Pournemati K, Habibi-Yangjeh A, Khataee A. Outstanding photocatalytic nitrogen fixation performance of TiO2 QDs modified by Bi2O3/NaBiS2 nanostructures upon simulated sunlight. J Colloid Interface Sci 2023; 641:1000-1013. [PMID: 36996680 DOI: 10.1016/j.jcis.2023.03.122] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/12/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023]
Abstract
Nowadays, a promising material for NH3 production under mild and safe conditions using heterogeneous photocatalysts is very important. In this regard, Bi2O3 and NaBiS2 nanoparticles were combined with TiO2 quantum dots (QDs) through a facile hydrothermal process. The TiO2 QDs/Bi2O3/NaBiS2 nanocomposites displayed excellent performance in the photofixation of nitrogen upon simulated sunlight. The NH3 generation rate constant over the optimum nanocomposite was 10.2 and 3.3-folds higher than TiO2 (P25) and TiO2 QDs photocatalysts, respectively. The spectroscopic and electrochemical studies affirmed more effective segregation and transfer of photo-induced charge carriers within ternary nanocomposite, due to the developing tandem n-n-p heterojunctions, which led to more lifetime of charges. Moreover, the impacts of solvent, pH, electron scavenger, and lake of nitrogen molecules on the NH3 generation were investigated. Finally, it was concluded that the TiO2 QDs/Bi2O3/NaBiS2 nanocomposite, with appealing features of more activity, high stability, and a facile one-pot synthesis method, is a promising photocatalyst in nitrogen fixation technology.
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Affiliation(s)
- Khadijeh Pournemati
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran
| | - Aziz Habibi-Yangjeh
- Department of Chemistry, Faculty of Science, University of Mohaghegh Ardabili, Ardabil, Iran.
| | - Alireza Khataee
- Research Laboratory of Advanced Water and Wastewater Treatment Processes, Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran; Department of Environmental Engineering, Faculty of Engineering, Gebze Technical University, 41400 Gebze, Turkey; Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, 602105 Chennai, India
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22
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Liu C, Wang P, Huang P, Yang Z, Zhou G. Photo-induced heterogeneous regeneration of Fe(Ⅱ) in Fenton reaction for efficient polycyclic antibiotics removal and in-depth charge transfer mechanism. J Colloid Interface Sci 2023; 638:768-777. [PMID: 36780855 DOI: 10.1016/j.jcis.2023.02.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/23/2023] [Accepted: 02/01/2023] [Indexed: 02/09/2023]
Abstract
Fenton reaction is regarded as a potential treatment for antibiotics removal, but challenges remain due to the sluggish reaction kinetics of Fe(III) reduction and incomplete degradation from insufficient active substance. Distinguished from traditional Fe(Ⅱ) regeneration techniques, this work focuses on utilizing the aliovalent redox pairs and built-in electric field to induce photo-excited electrons to cross the material interface and achieve Fe(III) reduction (heterogeneous regeneration). Herein, oxygen-deficient CeO2 particles are anchored on metal-organic frameworks (MIL-88A) and thus constitute the heterojunction with enhanced photoelectric properties, accelerating the directional charge transfer. Consequently, the synthesized MIL-88A/CeO2(OV) composite can degrade 95.76% of oxytetracycline within 60 min in photo-Fenton reaction and maintain a high mineralization rate (75.33%) after 4 cyclic tests. Furthermore, the charge transfer mechanisms of Fe cycle and antibiotics mineralization are both unveiled via experiment results and theorical calculation. This work proposes a new paradigm for constructing self-sufficient photo-Fenton catalytic system for efficient and sustainable removal of polycyclic antibiotics.
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Affiliation(s)
- Chongchong Liu
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
| | - Peilin Huang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Zhimin Yang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China
| | - Gang Zhou
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, People's Republic of China.
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23
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Harun-Ur-Rashid M, Pal K, Imran AB. Hybrid Nanocomposite Fabrication of Nanocatalyst with Enhanced and Stable Photocatalytic Activity. Top Catal 2023. [DOI: 10.1007/s11244-023-01809-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/07/2023]
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24
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Zhang H, Chen Y, Pan Y, Bao L, Ge JY. Multicomponent hydroxides supported Cu/Cu2O nanoparticles for high efficient photocatalytic ammonia synthesis. J Colloid Interface Sci 2023; 642:470-478. [PMID: 37023518 DOI: 10.1016/j.jcis.2023.03.187] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/23/2023] [Accepted: 03/29/2023] [Indexed: 04/04/2023]
Abstract
Environmentally friendly photocatalytic N2 fixation process has attracted considerable attention. Developing efficient photocatalysts with high electron-hole separation rates and gas adsorption capacities remains quite challenging. Herein, a facile fabrication strategy of Cu-Cu2O and multicomponent hydroxide S-scheme heterojunctions with carbon dot charge mediators is reported. The rational heterostructurebrings excellent N2 absorption ability and high photoinduced electron/hole separation efficiency, and the ammonia produced yield reach above 210 µmol·gcal-1·h-1 during the nitrogen photofixation process. More superoxide and hydroxyl radicals are generated simultaneously in the as-prepared samples under light illumination. This work offers a reasonable construction method to further develop suitable photocatalysts for ammonia synthesis.
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25
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Zhang S, Li H, Wang L, Liu J, Liang G, Davey K, Ran J, Qiao SZ. Boosted Photoreforming of Plastic Waste via Defect-Rich NiPS 3 Nanosheets. J Am Chem Soc 2023; 145:6410-6419. [PMID: 36913199 DOI: 10.1021/jacs.2c13590] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Abstract
Sustainable conversion of plastic waste to mitigate environmental threats and reclaim waste value is important. Ambient-condition photoreforming is practically attractive to convert waste to hydrogen (H2); however, it has poor performance because of mutual constraint between proton reduction and substrate oxidation. Here, we realize a cooperative photoredox using defect-rich chalcogenide nanosheet-coupled photocatalysts, e.g., d-NiPS3/CdS, to give an ultrahigh H2 evolution of ∼40 mmol gcat-1 h-1 and organic acid yield up to 78 μmol within 9 h, together with excellent stability beyond 100 h in photoreforming of commercial waste plastic poly(lactic acid) and poly(ethylene terephthalate). Significantly, these metrics represent one of the most efficient plastic photoreforming reported. In situ ultrafast spectroscopic studies confirm a charge transfer-mediated reaction mechanism in which d-NiPS3 rapidly extracts electrons from CdS to boost H2 evolution, favoring hole-dominated substrate oxidation to improve overall efficiency. This work opens practical avenues for converting plastic waste into fuels and chemicals.
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Affiliation(s)
- Shuai Zhang
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Haobo Li
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Lei Wang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, Hubei 441053, China
| | - Jiandang Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Guijie Liang
- Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and Devices, Hubei University of Arts and Science, Xiangyang, Hubei 441053, China
| | - Kenneth Davey
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Jingrun Ran
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
| | - Shi-Zhang Qiao
- School of Chemical Engineering and Advanced Materials, The University of Adelaide, Adelaide, SA 5005, Australia
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26
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Guo M, Fang L, Zhang L, Li M, Cong M, Guan X, Shi C, Gu C, Liu X, Wang Y, Ding X. Pulsed Electrocatalysis Enabling High Overall Nitrogen Fixation Performance for Atomically Dispersed Fe on TiO 2. Angew Chem Int Ed Engl 2023; 62:e202217635. [PMID: 36744701 DOI: 10.1002/anie.202217635] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/06/2023] [Accepted: 02/06/2023] [Indexed: 02/07/2023]
Abstract
Atomically dispersed Fe was designed on TiO2 and explored as a Janus electrocatalyst for both nitrogen oxidation reaction (NOR) and nitrogen reduction reaction (NRR) in a two-electrode system. Pulsed electrochemical catalysis (PE) was firstly involved to inhibit the competitive hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Excitingly, an unanticipated yield of 7055.81 μmol h-1 g-1 cat. and 12 868.33 μmol h-1 g-1 cat. were obtained for NOR and NRR at 3.5 V, respectively, 44.94 times and 7.8 times increase in FE than the conventional constant voltage electrocatalytic method. Experiments and density functional theory (DFT) calculations revealed that the single-atom Fe could stabilize the oxygen vacancy, lower the energy barrier for the vital rupture of N≡N, and result in enhanced N2 fixation performance. More importantly, PE could effectively enhance the N2 supply by reducing competitive O2 and H2 agglomeration, inhibit the electrocatalytic by-product formation for longstanding *OOH and *H intermediates, and promote the non-electrocatalytic process of N2 activation.
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Affiliation(s)
- Mingxia Guo
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Long Fang
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Linlin Zhang
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Mingzhu Li
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Meiyu Cong
- State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, Liaoning, P. R. China
| | - Xiping Guan
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Chuanwei Shi
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - ChunLei Gu
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Xia Liu
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China
| | - Yong Wang
- Technische Universität München Department Chemie, Lichtenbergstr. 4, 85748, Garching, Germany
| | - Xin Ding
- College of Chemistry and Chemical Engineering Institution Qingdao University, Qingdao, 266071, Shandong, P. R. China.,State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian, 116024, Liaoning, P. R. China
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27
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Zhang H, Chen Y, Bao L, Ge JY. CeO 2-CDs clusters decorated Co(OH) 2 nanosheets for improved photocatalytic ammonia synthesis. J Colloid Interface Sci 2023; 634:642-650. [PMID: 36549212 DOI: 10.1016/j.jcis.2022.12.065] [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: 10/28/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
The green synthesis process of photocatalytic ammonia production has received more and more attentions. Herein, a Z-scheme heterojunction with all-solid-state structures is constructed, in which carbon dots can act as electron transferring mediators. The photocatalytic measurement shows that the modified photocatalysts exhibit much higher activities, in which the ammonia production rates can reach above 232 µmol·gcal-1·h-1 under the light irradiation. The improved catalytic properties can be credited to the significantly increased number of photoinduced oxygen vacancies, the excellent visible-light adsorption abilities and photogenerated electron-hole separation efficiencies for the carbon dots bridged heterostructures. More hydroxyl and superoxide radicals can be simultaneously produced in the composites. This work provides reasonable guidance for applications in photocatalytic ammonia synthesis and a promising construction strategy of efficient Z-scheme photocatalysts.
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Affiliation(s)
- Huaiwei Zhang
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Yifan Chen
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Liang Bao
- College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Jing-Yuan Ge
- College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China.
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28
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Zhang Y, Zheng H, Zhou K, Ye J, Chu K, Zhou Z, Zhang L, Liu T. Conjugated Coordination Polymer as a New Platform for Efficient and Selective Electroreduction of Nitrate into Ammonia. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2209855. [PMID: 36651132 DOI: 10.1002/adma.202209855] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/17/2022] [Indexed: 06/17/2023]
Abstract
Electroreduction of nitrate into ammonia (NRA) provides a sustainable route to convert the widespread nitrate pollutants into high-value-added products under ambient conditions, which unfortunately suffers from unsatisfactory selectivity due to the competitive hydrogen evolution reaction (HER). Previous strategies of modifying the metal sites of catalysts often met a dilemma for simultaneously promoting activity and selectivity toward NRA. Here, a general strategy is reported to enable an efficient and selective NRA process through coordination modulation of single-atom catalysts to tailor the local proton concentration at the catalyst surface. By contrast, two analogous Ni-single-atom enriched conjugated coordination polymers (NiO4 -CCP and NiN4 -CCP) with different coordination motifs are investigated for the proof-of-concept study. The NiO4 -CCP catalyst exhibits an ammonia yield rate as high as 1.83 mmol h-1 mg-1 with a Faradaic efficiency of 94.7% under a current density of 125 mA cm-2 , outperforming the NiN4 -CCP catalyst. These experimental and theoretical studies both suggest that the strategy of coordination modulation can not only accelerate the NRA by adjusting the adsorption energies of NRA intermediates on the metal sites but also inhibit the HER through regulating the proton migration with contributions from the metal-hydrated cations adsorbed at the catalyst surface, thus achieving simultaneous enhancement of NRA selectivity and activity.
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Affiliation(s)
- Yizhe Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Hui Zheng
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Kangjie Zhou
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Jinyu Ye
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Kaibin Chu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Zhiyou Zhou
- State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Longsheng Zhang
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
| | - Tianxi Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China
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29
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Li J, Chen R, Wang K, Yang Y, Wang J, Yang W, Wang S, Yang G, Dong F. Combined Photoredox Catalysis for Value-Added Conversion of Contaminants at Spatially Separated Dual Active Sites. RESEARCH (WASHINGTON, D.C.) 2023; 6:0055. [PMID: 37040502 PMCID: PMC10076036 DOI: 10.34133/research.0055] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 01/02/2023] [Indexed: 01/12/2023]
Abstract
As 2 indispensable counterparts in one catalysis system, the independent reduction and oxidation reactions require synergetic regulation for cooperatively promoting redox efficiency. Despite the current success in promoting the catalytic efficiency of half reduction or oxidation reactions, the lack of redox integration leads to low energy efficiency and unsatisfied catalytic performance. Here, we exploit an emerging photoredox catalysis system by combining the reactions of nitrate reduction for ammonia synthesis and formaldehyde oxidation for formic acid production, in which superior photoredox efficiency is achieved on the spatially separated dual active sites of Ba single atoms and Ti3+. High catalytic redox rates are accomplished for respective ammonia synthesis (31.99 ± 0.79 mmol gcat -1 h-1) and formic acid production (54.11 ± 1.12 mmol gcat -1 h-1), reaching a photoredox apparent quantum efficiency of 10.3%. Then, the critical roles of the spatially separated dual active sites are revealed, where Ba single atoms as the oxidation site using h+ and Ti3+ as the reduction site using e- are identified, respectively. The efficient photoredox conversion of contaminants is accomplished with environmental importance and competitive economic value. This study also represents a new opportunity to upgrade the conventional half photocatalysis into the complete paradigm for sustainable solar energy utilization.
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Affiliation(s)
- Jieyuan Li
- Research Center for Carbon-Neutral Environmental and Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Ruimin Chen
- Research Center for Carbon-Neutral Environmental and Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Kaiwen Wang
- Beijing Key Lab of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Yan Yang
- School of Environmental Science and Engineering, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, Guangdong, China
| | - Jielin Wang
- Research Center for Carbon-Neutral Environmental and Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Weiping Yang
- Research Center for Carbon-Neutral Environmental and Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Shengyao Wang
- College of Science, Huazhong Agricultural University, Wuhan 430070, China
| | - Guidong Yang
- XJTU-Oxford Joint International Research Laboratory of Catalysis, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Fan Dong
- Research Center for Carbon-Neutral Environmental and Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
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30
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Enhancement of TOC removal efficiency of sulfamethoxazole using catalysts in the radiation treatment: Effects of band structure and electrical properties of radiocatalysts. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2023.123390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
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Liu S, Wang M, He Y, Cheng Q, Qian T, Yan C. Covalent organic frameworks towards photocatalytic applications: Design principles, achievements, and opportunities. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2022.214882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Yang Y, Xing Z, Kong W, Wu C, Peng H, Li Z, Zhou W. Metal-organic framework (MOF)-5/CuO@ZnIn 2S 4 core-shell Z-scheme tandem heterojunctions for improved charge separation and enhanced photocatalytic performance. NANOSCALE 2022; 14:14741-14749. [PMID: 36172834 DOI: 10.1039/d2nr03557j] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Interface engineering is regarded as an effective strategy for charge separation. Metal-organic framework (MOF)-5/CuO@ZnIn2S4 core-shell Z-scheme tandem heterojunctions with a three-dimensional floral spherical shape are prepared by a two-step solvothermal and oxidative method. The flower spherical core-shell structure enhances multiple reflections and refractions of light and thus improves light utilization efficiently. In addition, this core-shell structure can supply sufficient active sites for photocatalytic reactions. Meanwhile, the composition of Z-scheme tandem heterojunctions and the photothermal effect contributed to the spatial charge separation and accelerated the photocatalytic process. The photocatalytic hydrogen production rate of MOF-5/CuO@ZnIn2S4 (1938.3 μmol g-1 h-1) is 18 times higher than that of pristine MOF-5, and the photocatalytic degradation efficiency of 2,4-dichlorophenol and phenol can reach up to 98.7% and 97.3%, respectively. In addition, multiple cycle experiments demonstrate high stability, which is favorable for practical applications.
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Affiliation(s)
- Yi Yang
- Department of Environmental Science, 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, P. R. China.
| | - Zipeng Xing
- Department of Environmental Science, 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, P. R. China.
| | - Weifeng Kong
- Department of Environmental Science, 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, P. R. China.
| | - Chunxu Wu
- Department of Environmental Science, 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, P. R. China.
| | - Hui Peng
- Department of Environmental Science, 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, P. R. 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 250353, P. R. China.
| | - Wei Zhou
- Department of Environmental Science, 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, P. R. China.
- Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, P. R. China.
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Di J, Jiang W, Liu Z. Symmetry breaking for semiconductor photocatalysis. TRENDS IN CHEMISTRY 2022. [DOI: 10.1016/j.trechm.2022.08.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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