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Liu Y, Li M, Guo J, Jin G, Yin Y, Cui Y, Sun T. Na-Ru bimetallic functional sites promote photo-driven CO 2 directed conversion into CH 4. J Colloid Interface Sci 2024; 667:22-31. [PMID: 38615620 DOI: 10.1016/j.jcis.2024.04.068] [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: 02/03/2024] [Revised: 04/07/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
Recently, there has been a significant increase in interest in using photocatalysis for the energy conversion of polluting gases. In this research, sodium and ruthenium bimetallic functional sites co-modified bismuth tungstate (Ru/Na-Bi2WO6) nanoflower photocatalyst was synthesized via the hydrothermal method. The CO2 reduction products on the Bi2WO6 substrate were CO (1.66 μmol/g/h, 68 %) and CH4 (0.78 μmol/g/h, 32 %). After optimization, a significant change in the CO2 products of the Bi2WO6-based composite material was observed, with CO (0.61 μmol/g/h, 3.6 %) and CH4 (16.1 μmol/g/h, 96.4 %). Results showed that the dominance of CH4 as the main product in the Ru/Na-BWO system is attributed to the effective doping of Na, which generates impurity energy levels composed of oxygen vacancies, lowering the conduction band position of Bi2WO6, thereby suppressing CO generation, and enhancing CH4 selectivity by changing the CO2 activation pathway. The remarkable performance is ascribed to the synergized adsorption and activation of CO2 by the tandem Na+ sites and Ru0 sites. Specifically, the doped Na+ sites play a major role in promoting the adsorption CO2 molecules, while the Ru0 sites play a dominant role in facilitating the activation of the intermediates.
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Affiliation(s)
- Yanduo Liu
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China.
| | - Mengwei Li
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Jianing Guo
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Ge Jin
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Yue Yin
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Yu Cui
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
| | - Tong Sun
- School of Chemistry and Chemical Engineering, Harbin Normal University, Harbin 150025, PR China
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2
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Tao J, Zhang Q, Liu T. Polaron formation and transport in Bi 2WO 6 studied by DFT+ U and hybrid PBE0 functional approaches. Phys Chem Chem Phys 2022; 24:22918-22927. [PMID: 36124908 DOI: 10.1039/d2cp02987a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bi2WO6 (BWO) is considered as a promising material for photocatalytic water splitting. Its unique layered structure leads the charge separation, and transport is different from other materials. However, the charge transport mechanisms in BWO are not well understood. In this work, we investigated polaron formation and transport in BWO using the DFT+U and hybrid PBE0 functional approaches. We found that the electron will form 2-dimensional (2D)-shaped polarons among W sites in the ab plane of BWO with approximately 55% polaron density state on the central W site. This type of polaron is similar to the electron polarons in WO3. For other W-based materials, the electrons may also form a 2D-shaped polaron. We found that the W 6s orbital plays an important role in these 2D-shaped electron polarons. The calculated mobility of electron polarons in BWO was consistent with experimental findings. For the hole state, it could form a small hole polaron on the O site with O 2p in character. However, it will not form a polaron on the Bi site, which is quite different from BiVO4. This study provides insight for understanding polaron formation and transport in materials with W and Bi ions. It also provides understanding regarding charge separation and transport for materials with layered structures.
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Affiliation(s)
- Junyan Tao
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Qingyan Zhang
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Taifeng Liu
- National & Local Joint Engineering Research Center for Applied Technology of Hybrid Nanomaterials, Henan University, Kaifeng, 475004, China.
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3
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Tuerhong M, Chen P, Ma Y, Li Y, Li J, Yan C, Zhu B. Bi2MoO6/red phosphorus heterojunction for reducing Cr(VI) and mitigating Escherichia coli infection. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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4
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Exploring the structural and catalytic features of lipase enzymes immobilized on g-C3N4: A novel platform for biocatalytic and photocatalytic reactions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116612] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Lian X, Xue W, Dong S, Liu E, Li H, Xu K. Construction of S-scheme Bi 2WO 6/g-C 3N 4 heterostructure nanosheets with enhanced visible-light photocatalytic degradation for ammonium dinitramide. JOURNAL OF HAZARDOUS MATERIALS 2021; 412:125217. [PMID: 33517062 DOI: 10.1016/j.jhazmat.2021.125217] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Revised: 01/12/2021] [Accepted: 01/21/2021] [Indexed: 06/12/2023]
Abstract
Photocatalysis technology is considered as a promising environmental remediation strategy. Herein, photocatalytic degradation of ammonium dinitramide (ADN, main component of propellant) was investigated over Bi2WO6/g-C3N4 (BWO/CN) heterostructure nanosheets prepared by a one-step in-situ hydrothermal method. The operating conditions including ADN initial concentration, catalyst dosage, initial pH, temperature and green oxidizer (hydrogen peroxide) were optimized systematically. Under optimal conditions, the photocatalytic degradation rate of ADN over BWO/CN can reach 98.93% after 80 min visible-light irradiation. Besides, the composite has excellent stability for ADN treatment and nitrate ions are the major degradation products. Furthermore, S-scheme heterojunction mechanism was proposed to explain the extremely high REDOX performance of BWO/CN composite.
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Affiliation(s)
- Xiaoyan Lian
- School of Chemical Engineering/Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, China; College of Chemistry and Chemical Engineering, Baoji University of Arts and Sciences, Baoji 721013, China
| | - Wenhua Xue
- School of Chemical Engineering/Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, China
| | - Shuai Dong
- School of Chemical Engineering/Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, China
| | - Enzhou Liu
- School of Chemical Engineering/Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, China
| | - Hui Li
- Xi'an Modern Chemistry Research Institute, Xi'an 710065, China
| | - Kangzhen Xu
- School of Chemical Engineering/Xi'an Key Laboratory of Special Energy Materials, Northwest University, Xi'an 710069, China.
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Li D, Zhao Q, Ren Q, Song Z, Zhang Q, Long M, Li H. Double activating peroxymonosulfate with g-C 3N 4/Fe 2(MoO 4) 3 to enhance photocatalytic activity under visible light irradiation. NEW J CHEM 2021. [DOI: 10.1039/d1nj02915k] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The peroxymonosulfate was double activated by photogenerated e−/h+ and Fe(iii).
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Affiliation(s)
- Di Li
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Qianqian Zhao
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Qiaoxia Ren
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Ziyue Song
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Qiuli Zhang
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Mingyang Long
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
| | - Hongmiao Li
- School of Chemistry and Chemical Engineering, Xi’an University of Architecture and Technology, Xi’an, 710055, China
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Pham XN, Nguyen HT, Pham TN, Nguyen TTB, Nguyen MB, Tran VTT, Doan HV. Green synthesis of H-ZSM-5 zeolite-anchored O-doped g–C3N4 for photodegradation of Reactive Red 195 (RR 195) under solar light. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.09.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Li D, Yan P, Zhao Q, Bai X, Ma X, Xue J, Zhang Y, Liu M. Synthesis of Bi2WO6/Bi2MoO6 Heterostructured Nanosheet and Activating Peroxymonosulfate to Enhance Photocatalytic Activity. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01607-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Nguyen VH, Nguyen TD, Van Nguyen T. Microwave-Assisted Solvothermal Synthesis and Photocatalytic Activity of Bismuth(III) Based Metal–Organic Framework. Top Catal 2020. [DOI: 10.1007/s11244-020-01271-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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10
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Zhang M, Lai C, Li B, Huang D, Liu S, Qin L, Yi H, Fu Y, Xu F, Li M, Li L. Ultrathin oxygen-vacancy abundant WO3 decorated monolayer Bi2WO6 nanosheet: A 2D/2D heterojunction for the degradation of Ciprofloxacin under visible and NIR light irradiation. J Colloid Interface Sci 2019; 556:557-567. [DOI: 10.1016/j.jcis.2019.08.101] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Revised: 08/24/2019] [Accepted: 08/26/2019] [Indexed: 01/08/2023]
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11
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Jaihindh DP, Thirumalraj B, Chen SM, Balasubramanian P, Fu YP. Facile synthesis of hierarchically nanostructured bismuth vanadate: An efficient photocatalyst for degradation and detection of hexavalent chromium. JOURNAL OF HAZARDOUS MATERIALS 2019; 367:647-657. [PMID: 30654282 DOI: 10.1016/j.jhazmat.2019.01.017] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/03/2019] [Accepted: 01/08/2019] [Indexed: 06/09/2023]
Abstract
Heterostructured nanomaterials can paid more significant attention in environmental safety for the detection and degradation/removal of hazardous toxic chemicals over a decay. Here, we report the preparation of hierarchically nanostructured shuriken like bismuth vanadate (BiVO4) as a bifunctional catalyst for photocatalytic degradation and electrochemical detection of highly toxic hexavalent chromium (Cr(VI)) using the green deep eutectic solvent reline, which allows morphology control in one of the less energy-intensive routes. The SEM results showed a good dispersion of BiVO4 catalyst and the HR-TEM revealed an average particle size of ca. 5-10 nm. As a result, the BiVO4 exhibited good photocatalytic activity under UV-light about 95% reduction of Cr(VI) to Cr(III) was observed in 160 min. The recyclability of BiVO4 catalyst exhibited an appreciable reusability and stability of the catalyst towards the photocatalytic reduction of Cr(VI). Also, the BiVO4-modified screen printed carbon electrode (BiVO4/SPCE) displayed an excellent electrochemical performance towards the electrochemical detection of Cr(VI). Besides, the BiVO4/SPCE demonstrated tremendous electrocatalytic activity, lower linear range (0.01-264.5 μM), detection limit (0.0035 μM) and good storage stability towards the detection of Cr(VI). Importantly, the BiVO4 modified electrode was also found to be a good recovery in water samples for practical applications.
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Affiliation(s)
- Dhayanantha Prabu Jaihindh
- Department of Materials Science and Engineering, National Dong Hwa University, Shoufeng, Hualien, 97401, Taiwan
| | - Balamurugan Thirumalraj
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan; Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan
| | - Sheng-Ming Chen
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan.
| | - Paramasivam Balasubramanian
- Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, Taipei, 10608, Taiwan
| | - Yen-Pei Fu
- Department of Materials Science and Engineering, National Dong Hwa University, Shoufeng, Hualien, 97401, Taiwan.
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Huang Q, Ye J, Si H, Ruan J, Xu M, Yang B, Tao T, Zhao Y, Chen M. Enhanced performance of alkali-modified Bi 2WO 6/Bi 0.15Ti 0.85O 2 toward photocatalytic oxidation of HCHO under visible light. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:9672-9685. [PMID: 30734252 DOI: 10.1007/s11356-019-04277-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 01/16/2019] [Indexed: 06/09/2023]
Abstract
Photocatalytic oxidation of formaldehyde (HCHO) is considered as one of the promising ways to resolve indoor air HCHO pollution. TiO2 has been well known as the most extended application in photocatalysis due to its strong oxidizing ability and stability. Owing to high activity under visible light irradiation, TiO2 and Bi2O3 doping mixed with Bi2WO6 was analyzed in this study. The formation of two kinds of heterojunction caused efficient charge separation, leading to the effective reduction in the recombination of photo-generated electron and hole. The special structure and enhanced performance of these catalysts were analyzed. For the first time, the loading of alkali salts was researched for photocatalytic oxidation. In order to understand the reaction mechanism of alkali salts enhanced effects, the catalysts were investigated by using BET, XRD, UV-Vis, FT-IR, SEM, and XPS. The results found more than 2 wt% of Na2SO4 loading and the mixed methods with different solutions were key factors affecting the performance of catalysts. Nearly 92% HCHO conversion could be completed over Bi2WO6/Bi0.15Ti0.85O2 (Na2SO4), and the concentration of HCHO was only 0.07 mg/m3 for 24 h, which was below the limit of specification in China. The results also indicated that the solution mixing method was more favorable to increase the HCHO conversion due to decrease the size of Bi0.15Ti0.85O2 particles. The catalysts with Na2SO4 loading provided more surface-adsorbed oxygen that facilitated the desorption of CO2 and markedly increased the photocatalytic oxidation of HCHO. Graphical abstract Plausible mechanism over W-Bi2WO6/ Bi0.15Ti0.85O2-Na2SO4 (1:4) catalysts.
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Affiliation(s)
- Qiong Huang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China.
| | - Juan Ye
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Han Si
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Jiaxin Ruan
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Mengxin Xu
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Bo Yang
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Tao Tao
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Yunxia Zhao
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
| | - Mindong Chen
- Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technologies, Jiangsu Key Laboratory of Atmospheric Environmental Monitoring and Pollution Control, School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, No. 219 Ningliu Road, Nanjing, 210044, China
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Kavinkumar V, Verma A, Masilamani S, Kumar S, Jothivenkatachalam K, Fu YP. Investigation of the structural, optical and crystallographic properties of Bi2WO6/Ag plasmonic hybrids and their photocatalytic and electron transfer characteristics. Dalton Trans 2019; 48:10235-10250. [DOI: 10.1039/c9dt01807g] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We have fabricated an efficient Bi2WO6-Ag plasmonic hybrid via the photoreduction technique and the obtained materials were well characterized with sophisticated instruments.
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Affiliation(s)
| | - Atul Verma
- Department of Materials Science and Engineering
- National Dong Hwa University
- Shou-Feng
- Taiwan
| | | | - Sanath Kumar
- Department of Materials Science and Engineering
- National Dong Hwa University
- Shou-Feng
- Taiwan
| | | | - Yen-Pei Fu
- Department of Materials Science and Engineering
- National Dong Hwa University
- Shou-Feng
- Taiwan
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