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    陈硕

    • 教授     博士生导师   硕士生导师
    • 性别:女
    • 毕业院校:大连理工大学
    • 学位:博士
    • 所在单位:环境学院
    • 学科:环境工程. 环境科学
    • 办公地点:大连理工大学环境学院B717
    • 联系方式:0411-84706263
    • 电子邮箱:shuochen@dlut.edu.cn

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    Constructing BiVO4-Au@CdS photocatalyst with energic charge-carrier separation capacity derived from facet induction and Z-scheme bridge for degradation of organic pollutants

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    论文类型:期刊论文

    第一作者:Ye, Fei

    通讯作者:Quan, X (reprint author), Dalian Univ Technol, Key Lab Ind Ecol & Environm Engn, Minist Educ China, Sch Environm Sci & Technol, Dalian 116024, Peoples R China.

    合写作者:Li, Houfen,Yu, Hongtao,Chen, Shuo,Quan, Xie

    发表时间:2018-07-05

    发表刊物:APPLIED CATALYSIS B-ENVIRONMENTAL

    收录刊物:SCIE、EI

    卷号:227

    页面范围:258-265

    ISSN号:0926-3373

    关键字:Z-scheme; Facet effect; Charge carrier transfer; Pollutant degradation

    摘要:A rational design and precise control over charge carriers transportation in Z-scheme system is favorable for achieving its optimal photocatalytic performance. Herein, a ternary composite Z-scheme photocatalyst with Au@CdS selectively deposited on the {010} facets of BiVO4 was prepared. Due to the fact that the CB edge and VB edge of the {110} facet of BiVO4 are higher than those of its {010} facet, the photo-generated electrons and holes in well-faceted BiVO4 transferred to the {010} and {110} facets, respectively. The electrons on the {010} facets of BiVO4 transferred through Au NPs as the electron mediator to combine with holes of CdS at the interface. Benefiting from the dual-facilitated charge carriers transportation in Z-scheme and well-faceted BiVO4 crystals, the photocatalytic efficiency of the optimal ternary BiVO4-Au@CdS hybrids is 6.11, 3.03 and 2.95 times higher than those of BiVO4, BiVO4-Au and BiVO4-CdS toward Rhodamine B degradation and 1.46 times higher than that of BiVO4 (random facets)-Au@CdS toward 4-nonylphenol degradation. This work provides a new insight on rational design of Z-scheme system based on well-faceted nanocrystals for enhancing photocatalytic performance.