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A biochar-promoted V2O5/g-C3N4 Z-Scheme heterostructure for enhanced simulated solar light-driven photocatalytic activity.
Zang, Ya-Ni; Yang, Shan-Shan; Ding, Jie; Zhao, Shuang-Yang; Chen, Cheng-Xin; He, Lei; Ren, Nan-Qi.
Afiliação
  • Zang YN; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • Yang SS; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • Ding J; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • Zhao SY; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • Chen CX; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • He L; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
  • Ren NQ; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology Harbin 150090 China shanshanyang@hit.edu.cn dingjie123@hit.edu.cn.
RSC Adv ; 11(25): 15106-15117, 2021 Apr 21.
Article em En | MEDLINE | ID: mdl-35424058
A ternary biochar/vanadium pentoxide/graphite like carbon nitride (BC/V2O5/g-C3N4 denoted BC/VO/CN) composite was prepared by a simple hydrothermal method and its photocatalytic performance was investigated under simulated solar irradiation. The BC/VO/CN was characterized by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, X-ray photoelectron spectroscopy, UV-vis diffuse reflectance spectroscopy, and photoluminescence spectroscopy. Within the BC/VO/CN composites VO nanoparticles were highly crystalline and intertwined with the lamellas of CN, resulting in the formation of well-defined Z-type heterostructures. The photocatalytic activity was evaluated using Rhodamine B as a model pollutant. Under simulated solar (230-780 nm) irradiation the as-prepared BC/VO/CN hybrid materials demonstrated highly improved photocatalytic activity compared to CN, VO and VO/CN. The cause of the solar enhancement could be ascribed to the formation of Z-type heterojunctions between VO and CN, which promoted faster electron-hole separation and more efficient charge transfer. BC, as an electron transfer medium, accelerated the transfer of photogenerated charge carriers and inhibited their recombination.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article
Texto completo
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PubMed Links
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2021 Tipo de documento: Article