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Highly efficient Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst for its enhanced photocatalytic performance
Bu, Yuyu1; Chen, Zhuoyuan1; Sun, Chengjun2
2015-12-01
发表期刊APPLIED CATALYSIS B-ENVIRONMENTAL
卷号179期号:179页码:363-371
文章类型Article
摘要The Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst was prepared through an in situ deposition method. Originally, WO2.72 with hierarchical sea urchin-like structure was mixed with excessive Ag+ ions. The weak reducibility of WO2.72 was utilized to in situ reduce Ag+ into Ag, and Ag nanoparticles were deposited on the surface of WO2.72. Subsequently, an appropriate amount of PO43- ions was directly added dropwise to combine with the remaining Ag+ ions, as a result, the Ag3PO4 nanoparticles was, therefore, in situ deposited on the surface of Ag/WO3-x, and the Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst was obtained. The experimental results illustrate that, for the Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst, Ag nanoparticles serve as carrier-transfer centers, effectively prolong the lifetime of the photoinduced electrons generated by Ag3PO4 and the photoinduced holes generated by WO3-x, and therefore improve the photocatalytic degradation performance. The utilization of the weak reducibility of the transition metal oxides has been explored as an effective strategy to fabricate Z-scheme 'reduced state transition metal oxide/noble metal/semiconductor' photocatalysts with enhanced photocatalytic performance. (C) 2015 Elsevier B.V. All rights reserved.
关键词Z-scheme Wo2.72 Ag Ag3po4/ag/wo3-x
DOI10.1016/j.apcatb.2015.05.045
收录类别SCI
语种英语
WOS记录号WOS:000359873800040
引用统计
文献类型期刊论文
条目标识符http://ir.qdio.ac.cn/handle/337002/50102
专题海洋腐蚀与防护研究发展中心
作者单位1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, Qingdao 266071, Peoples R China
2.State Ocean Adm, Inst Oceanog 1, Marine Ecol Ctr, Qingdao 266061, Peoples R China
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Bu, Yuyu,Chen, Zhuoyuan,Sun, Chengjun. Highly efficient Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst for its enhanced photocatalytic performance[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2015,179(179):363-371.
APA Bu, Yuyu,Chen, Zhuoyuan,&Sun, Chengjun.(2015).Highly efficient Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst for its enhanced photocatalytic performance.APPLIED CATALYSIS B-ENVIRONMENTAL,179(179),363-371.
MLA Bu, Yuyu,et al."Highly efficient Z-Scheme Ag3PO4/Ag/WO3-x photocatalyst for its enhanced photocatalytic performance".APPLIED CATALYSIS B-ENVIRONMENTAL 179.179(2015):363-371.
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