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Fabrication of Z-scheme plasmonic photocatalyst Ag@AgBr/g-C3N4 with enhanced visible-light photocatalytic activity.
Yang, Yuxin; Guo, Wan; Guo, Yingna; Zhao, Yahui; Yuan, Xing; Guo, Yihang.
Afiliação
  • Yang Y; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China.
  • Guo W; School of Chemistry, Northeast Normal University, Changchun 130024, PR China.
  • Guo Y; School of Chemistry, Northeast Normal University, Changchun 130024, PR China.
  • Zhao Y; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China.
  • Yuan X; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun 130117, PR China. Electronic address: yuanx@nenu.edu.cn.
  • Guo Y; School of Chemistry, Northeast Normal University, Changchun 130024, PR China. Electronic address: guoyh@nenu.edu.cn.
J Hazard Mater ; 271: 150-9, 2014 Apr 30.
Article em En | MEDLINE | ID: mdl-24632367
A series of Ag@AgBr grafted graphitic carbon nitride (Ag@AgBr/g-C3N4) plasmonic photocatalysts are fabricated through photoreducing AgBr/g-C3N4 hybrids prepared by deposition-precipitation method. The phase and chemical structures, electronic and optical properties as well as morphologies of Ag@AgBr/g-C3N4 heterostructures are well-characterized. Subsequently, the photocatalytic activity of Ag@AgBr/g-C3N4 is evaluated by the degradation of methyl orange (MO) and rhodamin B (RB) under visible-light irradiation. The enhanced photocatalytic activity of Ag@AgBr/g-C3N4 compared with g-C3N4 and Ag@AgBr is obtained and explained in terms of the efficient visible-light utilization efficiency as well as the construction of Z-scheme, which keeps photogenerated electrons and holes with high reduction and oxidation capability, evidenced by photoelectrochemical tests and free radical and hole scavenging experiments. Based on the intermediates identified in the reaction system, the photocatalytic degradation pathway of MO is put forward.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Poluentes Químicos da Água / Brometos / Corantes / Luz / Nitrilas Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2014 Tipo de documento: Article

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Prata / Poluentes Químicos da Água / Brometos / Corantes / Luz / Nitrilas Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2014 Tipo de documento: Article