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作者:

Liu, Yunfeng (Liu, Yunfeng.) | Peng, Chao (Peng, Chao.) | Cai, Yongfeng (Cai, Yongfeng.) | Liu, Zuotao (Liu, Zuotao.) | Shen, Yi (Shen, Yi.) | Li, Fengfeng (Li, Fengfeng.)

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SCIE

摘要:

AgBr/BiVO(4)photocatalysts with heterojunction structures were prepared using a hydrothermal method. To analyse phase composition and microstructure, samples were characterised by X-ray diffraction and scanning electron microscopy, respectively. Photoluminescence measurements were used to characterise the recombination rate of photogenerated electron-hole pairs. The phase structure, chemical state and optical properties of heterojunctions were analysed by UV-visible diffuse-reflectance spectrometry. AgBr/BiVO(4)showed high efficiency for the degradation of rhodamine B under visible light irradiation. Hydrothermal temperature and pH values exhibited significant influence on band gap energy and the recombination rate of electron-hole pairs of AgBr/BiVO4, reflective of photocatalytic properties. Results show that at 160 degrees C and pH of 7 AgBr/BiVO(4)achieved the best photocatalytic activity, for which the visible light-absorption range of the AgBr/BiVO(4)heterojunction was significantly enhanced. Photodegradation catalysis of RhB was most efficiently achieved at a level of approximately 56.72% for a reaction time of 140 min.

关键词:

AgBr BiVO4 hydrothermal temperature pH photocatalytic activity

作者机构:

  • [ 1 ] [Liu, Yunfeng]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 2 ] [Peng, Chao]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 3 ] [Cai, Yongfeng]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 4 ] [Liu, Zuotao]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 5 ] [Shen, Yi]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 6 ] [Li, Fengfeng]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China
  • [ 7 ] [Cai, Yongfeng]Beijing Univ Technol, Coll Mat Sci & Engn, Beijing, Peoples R China

通讯作者信息:

  • [Shen, Yi]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China;;[Li, Fengfeng]North China Univ Sci & Technol, Key Lab Environm Funct Mat Tangshan City, Hebei Prov Key Lab Inorgan Nonmetall Mat, Coll Mat Sci & Engn, Tangshan 063210, Hebei, Peoples R China

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来源 :

MATERIALS TECHNOLOGY

ISSN: 1066-7857

年份: 2020

3 . 1 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:37

JCR分区:2

被引次数:

WoS核心集被引频次: 5

SCOPUS被引频次: 2

ESI高被引论文在榜: 0 展开所有

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