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Huang H, Ding L, Wang X, Jiang Q, Li Q, Hu J. Edge-oriented growth of cadmium sulfide nanoparticles on nickel metal-organic framework nanosheets for photocatalytic hydrogen evolution. J Colloid Interface Sci 2024; 670:86-95. [PMID: 38759271 DOI: 10.1016/j.jcis.2024.05.083] [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: 03/23/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 05/19/2024]
Abstract
In this study, a directional loading of cadmium sulfide (CdS) nanoparticles (NPs) was achieved on the opposite edges of nickel metal-organic framework (Ni-MOF) nanosheets (NSs) by adjusting the weight ratio of CdS NPs in the reaction process to produce effective visible light photocatalysts. The close contact between the zero-dimensional (0D) and two-dimensional (2D) regions and the matching positions of the bands promoted charge separation and heterojunction formation. The optimal CdS NPs loading of composite material was 40 wt%. At this ratio, CdS NPs grew primarily at the opposite edges of the Ni-MOF NSs rather than on their surfaces. When lactic acid was used as the sacrificial agent, the hydrogen production rate of the 40 %-CdS/Ni-MOF heterojunction under visible light irradiation was 19.6 mmol h-1 g-1, making a 20-fold enhancement compared to the original CdS NPs sample (1.0 mmol h-1 g-1). The charge carriers generated in CdS NPs were transferred to Ni-MOF NSs through heterojunctions, where Ni-MOF NSs also served as cocatalysts to improve hydrogen production. The combination of the two materials improved the light absorption ability. In particular, the 40 %-CdS/Ni-MOF heterojunction exhibited good photostability, effectively preventing the photocorrosion of CdS NPs. This study introduces an approach for constructing efficient and stable photocatalysts for visible light-driven photocatalytic hydrogen production.
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Affiliation(s)
- Han Huang
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Liyong Ding
- College of Chemical and Material Engineering, Quzhou University, Quzhou 324000, PR China.
| | - Xuedong Wang
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Qingqing Jiang
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Qin Li
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, PR China
| | - Juncheng Hu
- Hubei Key Laboratory of Catalysis and Materials Science, School of Chemistry and Materials Science, South-Central Minzu University, Wuhan 430074, PR China.
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Zhang WJ, Wang FJ, Liu H, Wang Y, Chen M. Removing unreacted amino groups in graphitic carbon nitride through residual heating to improve the photocatalytic performance. RSC Adv 2023; 13:6688-6698. [PMID: 36860530 PMCID: PMC9969336 DOI: 10.1039/d2ra08324h] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 02/21/2023] [Indexed: 03/03/2023] Open
Abstract
In most of the research about graphitic carbon nitride (g-C3N4), g-C3N4 is prepared through the calcination of nitrogen-rich precursors. However, such a preparation method is time-consuming, and the photocatalytic performance of pristine g-C3N4 is lackluster due to the unreacted amino groups on the surface of g-C3N4. Therefore, a modified preparation method, calcination through residual heating, was developed to achieve rapid preparation and thermal exfoliation of g-C3N4 simultaneously. Compared with pristine g-C3N4, the samples prepared by residual heating had fewer residual amino groups, a thinner 2D structure, and higher crystallinity, which led to a better photocatalytic performance. The photocatalytic degradation rate of the optimal sample for rhodamine B could reach 7.8 times higher than that of pristine g-C3N4.
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Affiliation(s)
- Wen-Jun Zhang
- Department of Materials Science, Fudan University Shanghai 200433 China
| | - Feng-Jue Wang
- Department of Materials Science, Fudan University Shanghai 200433 China
| | - Han Liu
- Department of Materials Science, Fudan University Shanghai 200433 China
| | - Yue Wang
- Department of Materials Science, Fudan University Shanghai 200433 China
| | - Meng Chen
- Department of Materials Science, Fudan University Shanghai 200433 China
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Xu W, Cao JF, Zhang XP, Shu Y, Wang JH. The concurrent enrichment of glycoproteins and phosphoproteins with polyoxometalate-covalent organic framework conjugate as the adsorbent. J Chromatogr A 2022; 1675:463183. [DOI: 10.1016/j.chroma.2022.463183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/24/2022] [Accepted: 05/30/2022] [Indexed: 11/26/2022]
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Research Progress on Catalytic Water Splitting Based on Polyoxometalate/Semiconductor Composites. Catalysts 2021. [DOI: 10.3390/catal11040524] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In recent years, due to the impact of global warming, environmental pollution, and the energy crisis, international attention and demand for clean energy are increasing. Hydrogen energy is recognized as one of the clean energy sources. Water is considered as the largest potential supplier of hydrogen energy. However, artificial catalytic water splitting for hydrogen and oxygen evolution has not been widely used due to its high energy consumption and high cost during catalytic cracking. Therefore, the exploitation of photocatalysts, electrocatalysts, and photo-electrocatalysts for rapid, cost effective, and reliable water splitting is essentially needed. Polyoxometalates (POMs) are regarded as the potential candidates for water splitting catalysis. In addition to their excellent catalytic properties and reversibly redox activities, POMs can also modify semiconductors to overcome their shortcomings, and improve photoelectric conversion efficiency and photocatalytic activity, which has attracted more and more attention in the field of photoelectric water splitting catalysis. In this review, we summarize the latest applications of POMs and semiconductor composites in the field of photo-electrocatalysis (PEC) for hydrogen and oxygen evolution by catalytic water splitting in recent years and take the latest applications of POMs and semiconductor composites in photocatalysis for water splitting. In the conclusion section, the challenges and strategies of photocatalytic and PEC water-splitting by POMs and semiconductor composites are discussed.
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Wei L, Zeng D, Xie Z, Zeng Q, Zheng H, Fujita T, Wei Y. NiO Nanosheets Coupled With CdS Nanorods as 2D/1D Heterojunction for Improved Photocatalytic Hydrogen Evolution. Front Chem 2021; 9:655583. [PMID: 33937197 PMCID: PMC8082420 DOI: 10.3389/fchem.2021.655583] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 03/22/2021] [Indexed: 11/30/2022] Open
Abstract
Designing low-cost, environment friendly, and highly active photocatalysts for water splitting is a promising path toward relieving energy issues. Herein, one-dimensional (1D) cadmium sulfide (CdS) nanorods are uniformly anchored onto two-dimensional (2D) NiO nanosheets to achieve enhanced photocatalytic hydrogen evolution. The optimized 2D/1D NiO/CdS photocatalyst exhibits a remarkable boosted hydrogen generation rate of 1,300 μmol h-1 g-1 under visible light, which is more than eight times higher than that of CdS nanorods. Moreover, the resultant 5% NiO/CdS composite displays excellent stability over four cycles for photocatalytic hydrogen production. The significantly enhanced photocatalytic activity of the 2D/1D NiO/CdS heterojunction can be attributed to the efficient separation of photogenerated charge carriers driven from the formation of p-n NiO/CdS heterojunction. This study paves a new way to develop 2D p-type NiO nanosheets-decorated n-type semiconductor photocatalysts for photocatalytic applications.
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Affiliation(s)
- Lin Wei
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
| | - Deqian Zeng
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
| | - Zongzhuo Xie
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
| | - Qingru Zeng
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
| | - Hongfei Zheng
- Collaborative Innovation Center of Chemistry for Energy Materials, College of Materials, Xiamen University, Xiamen, China
| | - Toyohisa Fujita
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
| | - Yuezhou Wei
- Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured Materials, School of Resources, Environment and Materials, Guangxi University, Nanning, China
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Xu W, Cao JF, Zhang YY, Shu Y, Wang JH. Boronic acid modified polyoxometalate-alginate hybrid for the isolation of glycoproteins at neutral environment. Talanta 2020; 210:120620. [DOI: 10.1016/j.talanta.2019.120620] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 12/01/2019] [Accepted: 12/06/2019] [Indexed: 01/18/2023]
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Zhao J, Han P, Tian S, Shi H, He J, Xiao C. Polypyrrole/cadmium sulfide hollow fiber with high performance contaminant removal and photocatalytic activity fabricated by layer-by-layer deposition and fiber-sacrifice template approach. J Colloid Interface Sci 2019; 557:94-102. [PMID: 31514097 DOI: 10.1016/j.jcis.2019.08.095] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/16/2019] [Accepted: 08/18/2019] [Indexed: 12/22/2022]
Abstract
A recyclable polypyrrole (PPy)/cadmium sulfide (CdS) hollow fiber photocatalyst was innovatively fabricated for solving the loss issue of the current powder-form photocatalyst in slurry system. Core-sheath structure CdS/polyacrylonitrile (PAN) fiber was prepared via successive ionic layer adsorption and reaction (SILAR) method on the surface of PAN fiber. PPy was further deposited on the CdS/PAN fiber by vapor deposition polymerization. After the removal of interior PAN template, PPy/CdS hollow fiber was yielded. The hollow structure of PPy/CdS hollow fiber was confirmed by morphology observation. The resulting PPy/CdS hollow fiber presents low energy band gaps of 1.9 eV, which accounts for enhanced visible light photocatalytic activity after PPy deposition. PPy/CdS hollow fiber shows good dye removal efficiency of 73.06 wt% (dosage of the product as low as 5 mg·10 mL-1), and praiseworthy H2 production rate up to 269.7 μmol·g-1·h-1. PPy/CdS hollow fiber maintained high and sustainable photocatalytic activity compared to CdS/PAN fiber after 8 cycles, indicating that PPy effectively improved the stability of CdS. Here, PPy plays key synergistic role in photocatalysis of PPy/CdS hollow fiber for the promotive and protective effects based on the actual photocatalytic performance and inductively coupled plasma optical emission spectrometer (ICP-OES) results. Compared with nano-sized photocatalysts, the fiber-formed PPy/CdS hollow fiber is highly bulky and easy to recycle. PPy/CdS hollow fiber has great potential for scale-up in industrial application because of its excellent grabbing ability and degradation to contaminants, and ease of disposal.
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Affiliation(s)
- Jian Zhao
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Pengyao Han
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Shengnan Tian
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Haiting Shi
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Jiahuan He
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Changfa Xiao
- State Key Laboratory of Separation Membranes and Membrane Processes, National Center for International Joint Research on Separation Membranes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.
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Zou W, Xu L, Pu Y, Cai H, Wei X, Luo Y, Li L, Gao B, Wan H, Dong L. Advantageous Interfacial Effects of AgPd/g‐C
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for Photocatalytic Hydrogen Evolution: Electronic Structure and H
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O Dissociation. Chemistry 2019; 25:5058-5064. [DOI: 10.1002/chem.201806074] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Revised: 01/31/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Weixin Zou
- State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing University Nanjing 210093 PR China
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Lixia Xu
- State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Yu Pu
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Haojie Cai
- State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Xiaoqian Wei
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Yidan Luo
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Lulu Li
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Bin Gao
- Department of Agricultural and Biological EngineeringUniversity of Florida Gainesville FL 32611 USA
| | - Haiqin Wan
- State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
| | - Lin Dong
- State Key Laboratory of Pollution Control and Resource Reuse, School of the EnvironmentNanjing University Nanjing 210093 PR China
- Key Laboratory of Mesoscopic Chemistry of MOE, School of Chemistry and Chemical EngineeringNanjing University Nanjing 210093 PR China
- Jiangsu Key Laboratory of Vehicle Emissions Control, Center of Modern AnalysisNanjing University Nanjing 210093 PR China
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Interfacial engineering of graphitic carbon nitride (g-C3N4)-based metal sulfide heterojunction photocatalysts for energy conversion: A review. CHINESE JOURNAL OF CATALYSIS 2019. [DOI: 10.1016/s1872-2067(19)63293-6] [Citation(s) in RCA: 334] [Impact Index Per Article: 66.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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