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Safartoobi A, Mazloom J, Ghodsi FE. Novel electrospun bead-like Ag 2MoO 4 nanofibers coated on Ni foam for visible light-driven heterogeneous photocatalysis and high-performance supercapacitor electrodes. Phys Chem Chem Phys 2023; 26:430-444. [PMID: 38078493 DOI: 10.1039/d3cp04751b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2023]
Abstract
Novel Ag2MoO4 nanocomposite fibers were designed to enhance the photocatalytic response and supercapacitor performance of MoO3 grown via the sol-gel electrospinning technique. The Ag2MoO4 nanocomposite fibers exhibit a high specific surface area of 49.3 m2 g-1 comprising nanobeads that aggregate in the fibrous structure. The photodegradation efficiency of Ag2MoO4 was evaluated as 62% under visible light irradiation which improved to 71% with heterogeneous photocatalysis. The Ag2MoO4@Ni foam exhibited a low Rct of 19.6 Ω, and an enhanced specific capacitance of 1445 F g-1 was obtained at 1 A g-1, with 93% of its initial capacitance remaining after 5000 cycles. In addition, the Ag2MoO4//activated carbon asymmetric supercapacitor possesses an excellent energy density of 76.6 W h kg-1 at 743.2 W kg-1 and a noteworthy cycling durability of 91% after 5000 cycles. Our findings demonstrate that the electrospun Ag2MoO4@Ni foam is an important and inexpensive electrode material for supercapacitor applications and visible light-driven heterogeneous photocatalysis, drawing on the synergic effects of Ag and Mo to exhibit much better performance.
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Affiliation(s)
- Amirreza Safartoobi
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 413351914, Rasht, Iran.
| | - Jamal Mazloom
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 413351914, Rasht, Iran.
| | - Farhad Esmaeili Ghodsi
- Department of Physics, Faculty of Science, University of Guilan, Namjoo Avenue, P.O. Box 413351914, Rasht, Iran.
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Chang F, Zhao S, Lei Y, Wang X, Dong F, Zhu G, Kong Y. Jointly augmented photocatalytic NO removal by S-scheme Bi 12SiO 20/Ag 2MoO 4 heterojunctions with surface oxygen vacancies. J Colloid Interface Sci 2023; 649:713-723. [PMID: 37385036 DOI: 10.1016/j.jcis.2023.06.168] [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: 05/04/2023] [Revised: 06/13/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023]
Abstract
The deep oxidation of NO molecules to NO3- species with the avoidance of toxic NO2 generation is a big and challengeable concern, which can be solved by the rational design and construction of catalytic systems with satisfactory structural and optical features. For such, in this investigation binary composites Bi12SiO20/Ag2MoO4 (BSO-XAM) were fabricated through a facile mechanical ball-milling route. From microstructural and morphological analyses, heterojunction structures with surface oxygen vacancies (OVs) were simultaneously created, contributing to the enhanced visible-light absorption, reinforced migration and separation of charge carries, and further boosted generation of reactive species such as superoxide radicals and singlet oxygen. Based on the density-functional theory (DFT) calculations, surface OVs induced the strengthened adsorption and activation of O2, H2O, and NO molecules and oxidation of NO to NO2, while heterojunction structures were beneficial for the continuous oxidation of NO2 to NO3- species. Thus, the heterojunction structures with surface OVs synergistically guaranteed the augmented photocatalytic NO removal and constrained NO2 generation of BSO-XAM through a typical S-scheme model. This study may provide scientific guidances for the photocatalytic control and removal of NO at ppb level by Bi12SiO20-based composites through the mechanical ball-milling protocol.
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Affiliation(s)
- Fei Chang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Shanshan Zhao
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Yibo Lei
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Xiaomeng Wang
- School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, PR China
| | - Fan Dong
- Research Center for Environmental Science & Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, PR China
| | - Gangqiang Zhu
- School of Physics and Information Technology, Shaanxi Normal University, Xi' an 710062, PR China.
| | - Yuan Kong
- Hefei National Laboratory for Physical Sciences at the Microscale & Synergetic Innovation Center of Quantum Information and Quantum Physics CAS Center for Excellence in Nanoscience and Department of Chemical Physics, Key Laboratory of Surface and Interface Chemistry and Energy Catalysis of Anhui Higher Education Institutes, University of Science and Technology of China, Hefei 230026, PR China.
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3
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Visible light-driven photocatalytic and enzyme-like properties of novel AgBr/Ag2MoO4 for degradation of pollutants and improved antibacterial application. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128348] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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4
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Recent advances on silver-based photocatalysis: Photocorrosion inhibition, visible-light responsivity enhancement, and charges separation acceleration. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120194] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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5
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Balasurya S, Das A, Alyousef AA, Alqasim A, Almutairi N, Sudheer Khan S. Facile synthesis of Bi2MoO6-Ag2MoO4 nanocomposite for the enhanced visible light photocatalytic removal of methylene blue and its antimicrobial application. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116350] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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6
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Preparation of Z-scheme Ag/AgBr/BiOBr composite photocatalyst for effective removal of organic pollutants. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111228] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Della Rocca DG, Peralta RM, Peralta RA, Peralta Muniz Moreira RDF. Recent development on Ag2MoO4-based advanced oxidation processes: a review. REACTION KINETICS MECHANISMS AND CATALYSIS 2021. [DOI: 10.1007/s11144-021-01934-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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8
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Senthil RA, Wu Y, Liu X, Pan J. A facile synthesis of nano AgBr attached potato-like Ag 2MoO 4 composite as highly visible-light active photocatalyst for purification of industrial waste-water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 269:116034. [PMID: 33310494 DOI: 10.1016/j.envpol.2020.116034] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 09/09/2020] [Accepted: 09/12/2020] [Indexed: 05/16/2023]
Abstract
In recent times, silver (Ag) based semiconductors have been gained a lot of attention as photocatalysts for industrial waste-water treatment owing to their strong visible-light absorbing capability and small bandgap energy. Therefore, herein, we have designed and utilized a one-pot hydrothermal approach to the synthesis of nano-sized AgBr covered potato-like Ag2MoO4 composite photocatalysts for the elimination of organic wastes from the aquatic environment. To achieve a high-performance photocatalyst, a sequence of AgBr/Ag2MoO4 composites were acquired with varying CTAB from 1 to 4 mmol. Furthermore, the photocatalytic activity of these photocatalysts was confirmed from decomposing of Rhodamine B (RhB) dye via visible-light elucidation. It can be noticed that AgBr/Ag2MoO4 composites exhibited significantly increased photocatalytic behaviour as compared with pure AgBr and Ag2MoO4. Surprisingly, the AgBr/Ag2MoO4 composite obtained from 2 mmol CTAB was eliminated the entire RhB dye with 25 min. Also, the recycling experiment indicates the AgBr/Ag2MoO4 composite has an excellent photo-stability. Accordingly, the as-acquired AgBr/Ag2MoO4 composite would be a suitable photocatalytic material for industrial waste-water purification.
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Affiliation(s)
- Raja Arumugam Senthil
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China; State Key Laboratory of Chemical Resources Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
| | - Yufeng Wu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China.
| | - Xiaomin Liu
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing 100124, PR China
| | - Junqing Pan
- State Key Laboratory of Chemical Resources Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing 100029, China
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Li L, Yin D, Deng L, Xiao S, Ouyan Y, Khaing KK, Guo X, Wang J, Luo Z. Fabrication of a novel ternary heterojunction composite Ag 2MoO 4/Ag 2S/MoS 2 with significantly enhanced photocatalytic performance. NEW J CHEM 2021. [DOI: 10.1039/d0nj04290k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel ternary heterojunction Ag2MoO4/Ag2S/MoS2 was successfully fabricated via a facile two-step method. The prepared ternary heterojunction showed much enhanced catalytic activity compared with monomers and binary heterojunctions.
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Affiliation(s)
- Luqiu Li
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | - Dongguang Yin
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | - Linlin Deng
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | | | | | - Kyu Kyu Khaing
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | - Xiandi Guo
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | - Jun Wang
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
| | - Zhaoyue Luo
- School of Environmental and Chemical Engineering
- Shanghai University
- Shanghai
- China
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10
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Abulizi A, Kadeer K, Maimaitizi H, Tursun Y, Talifu D. In situ ultrasound-assisted ion exchange synthesis of sphere-like AgCl xBr 1-x composites with enhanced photocatalytic activity and stability. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43615-43624. [PMID: 32737777 DOI: 10.1007/s11356-020-10218-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 07/20/2020] [Indexed: 06/11/2023]
Abstract
AgClxBr1-x composites with different halogen molar ratios (Cl/Br) were prepared by a facile ultrasound-assisted ion-exchange method. The formation of close contact between AgCl and AgBr facilitated the transportation of photoexcited charge carriers and contributed to the enhanced visible-light-driven photocatalytic degradation of different kinds of antibiotics. The AgClxBr1-x composites had a sphere-like morphology and tunable band gaps from 2.95 to 2.57 eV depending on Cl/Br mole ratios. Besides, the AgClxBr1-x composite was optimized by varying halogen mole ratios (Cl/Br) to achieve the highest photocatalytic activity. Results indicated that AgCl0.75Br0.25 showed the best photocatalytic degradation performance, which was about 2.36 and 2.78 times that of the single AgCl towards ciprofloxacin (CIP) and metronidazole (MNZ) degradation, respectively. Meanwhile, a possible photocatalytic degradation mechanism was discussed, and results indicated that the holes (h+) and •OH were the dominant active species in the AgCl0.75Br0.25 system.
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Affiliation(s)
- Abulikemu Abulizi
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China.
| | - Kuerbangnisha Kadeer
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Hujiabudula Maimaitizi
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Yalkunjan Tursun
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
| | - Dilinuer Talifu
- Key Laboratory of Coal Conversion & Chemical Engineering Process (Xinjiang Uyghur Autonomous Region), College of Chemistry and Chemical Engineering, Xinjiang University, Shengli Road No.666, Tianshan District, Urumqi, 830046, Xinjiang, People's Republic of China
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11
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Niyati A, Haghighi M, Shabani M. Solar-Assisted photocatalytic elimination of Azo dye effluent using plasmonic AgCl anchored flower-like Bi4O5I2 as staggered nano-sized photocatalyst designed via sono-precipitation method. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.10.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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12
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Unvealing the role of β-Ag 2MoO 4 microcrystals to the improvement of antibacterial activity. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 111:110765. [PMID: 32279798 DOI: 10.1016/j.msec.2020.110765] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 01/14/2020] [Accepted: 02/18/2020] [Indexed: 12/29/2022]
Abstract
Crystal morphology with different surfaces is important for improving the antibacterial activity of materials. In this experimental and theoretical study, the antibacterial activity of β-Ag2MoO4 microcrystals against the Gram-positive bacteria, namely, methicillin-resistant Staphylococcus aureus (MRSA), and the Gram-negative bacteria, namely, Escherichia coli (E. coli), was investigated. In this study, β-Ag2MoO4 crystals with different morphologies were synthetized by a simple co-precipitation method using three different solvents. The antimicrobial efficacy of the obtained microcrystals against both bacteria increased according to the solvent used in the following order: water < ammonia < ethanol. Supported by experimental evidence, a correlation between morphology, surface energy, and antibacterial performance was established. By using the theoretical Wulff construction, which was obtained by means of density functional calculations, the morphologies with large exposition of the (001) surface exhibited superior antibacterial activity. This study provides a low cost route for synthesizing β-Ag2MoO4 crystals and a guideline for enhancing the biological effect of biocides on pathogenic bacteria by the morphological modulation.
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13
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Yan Y, Li X, Ni T, Chang K, Li K, Guo Q. In-situ grafting BiVO4 nanocrystals on a BiPO4 surface: Enhanced metronidazole degradation activity under UV and visible light. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.03.005] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Jiao Z, Liu Z, Ma Z. Rodlike AgI/Ag 2Mo 2O 7 Heterojunctions with Enhanced Visible-Light-Driven Photocatalytic Activity. ACS OMEGA 2019; 4:7919-7930. [PMID: 31459880 PMCID: PMC6648513 DOI: 10.1021/acsomega.9b00806] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2019] [Accepted: 04/19/2019] [Indexed: 06/10/2023]
Abstract
Novel AgI/Ag2Mo2O7 heterojunctions were prepared by reacting Ag2Mo2O7 microrods with an aqueous KI solution at room temperature. The composite materials, compared with neat AgI and Ag2Mo2O7, showed much higher activities in the photocatalytic degradation of aqueous rhodamine B, methyl orange, tetracycline hydrochloride, and levofloxacin solutions under visible-light irradiation. The structures, morphologies, and other physicochemical properties of AgI, Ag2Mo2O7, and AgI/Ag2Mo2O7 composites were studied via various characterization techniques. The active species involved in the photocatalytic process were examined via radical-capturing experiments and electron spin resonance. Superoxide anion radicals (•O2 -) and photogenerated holes (h+) were found to be the main active species. Photocatalytic mechanisms were proposed and reasons for the enhanced photocatalytic activity were explained.
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Affiliation(s)
- Zhongyi Jiao
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China
| | - Zhendong Liu
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China
| | - Zhen Ma
- Shanghai
Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3),
Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, P. R. China
- Shanghai
Institute of Pollution Control and Ecological Security, Shanghai 200092, P. R. China
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16
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Li W, Chen Q, Lei X, Gong S. Fabrication of Ag/AgBr/Ag3VO4 composites with high visible light photocatalytic performance. RSC Adv 2019; 9:5100-5109. [PMID: 35514669 PMCID: PMC9060689 DOI: 10.1039/c8ra10538c] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Accepted: 01/24/2019] [Indexed: 01/11/2023] Open
Abstract
Herein, Ag/AgBr/Ag3VO4 composites were synthesized by a simple continuous precipitation method. The obtained composites were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectrometry (EDS), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectroscopy and photoluminescence spectroscopy (PL). Photocatalytic performance of the composites was assessed by the degradation of methyl orange (MO) and tetracycline hydrochloride (TC) under visible light, and the effects of different nominal mass ratios of AgBr and Ag3VO4 on the photocatalytic activity were investigated. The results showed that after 20 min of visible light irradiation (λ > 420 nm), the removal rate of MO in the presence of a 5 : 1 sample reached 98.6%. The EIS and photocurrent results demonstrated that the enhancement of the visible light photocatalytic activity was attributed to the efficient electron–hole pair separation. In addition, the scavenging reactions conducted via the addition of different scavengers confirmed that h+ and ·O2− were the main active species in the reaction. The present study offers potential for the degradation of contaminants. Ag/AgBr/Ag3VO4 composites were synthesized by a simple continuous precipitation method, which were used to degrade organic pollutants and found to have excellent photocatalytic properties.![]()
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Affiliation(s)
- Wenxue Li
- School of Chemistry and Chemical Engineering
- Guizhou University
- Guiyang, 550025
- China
| | - Qianlin Chen
- School of Chemistry and Chemical Engineering
- Guizhou University
- Guiyang, 550025
- China
- Institute of Advanced Technology
| | - Xianyu Lei
- School of Chemistry and Chemical Engineering
- Guizhou University
- Guiyang, 550025
- China
| | - Shang Gong
- School of Chemistry and Chemical Engineering
- Guizhou University
- Guiyang, 550025
- China
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