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题名:
Interfacial properties of the enhanced visible-light plasmonic Ag/Bi2WO6(001) nanocompo site
作者: Wang, F; Cao, K; Wu, Y; Zhang, KH; Zhou, Y
刊名: APPLIED SURFACE SCIENCE
出版日期: 2016
卷号: 360, 期号:-, 页码:1075—1079
关键词: NOBLE-METAL NANOPARTICLES ; DENSITY-FUNCTIONAL THEORY ; PHOTOCATALYTIC ACTIVITY ; BI2WO6 ; SURFACE ; NANOSTRUCTURES ; COMPOSITES ; ADSORPTION ; SIMULATION ; CLUSTERS
DOI: 10.1016/j.apsusc.2015.11.061
通讯作者: Zhou, Y (reprint author), Southwest Petr Univ, State Key Lab Oil & Gas Reservoir Geol & Exploita, 8 Xindu Rd, Chengdu 610500, Peoples R China.
文章类型: 期刊文献
英文摘要: First principle calculations are performed to study the interfacial photoelectric properties of Agn/Bi2WO6 (0 0 1) (n=1, 2, 3, 4) hybrid photocatalyst. The parallel adsorption of Ag cluster leads to more energetic favorable structures due to stronger interfacial interactions. The positive charged Ag cluster may act as excited electron traps and facilitate the electron-hole separation. In particular, hybridization between Ag 5s and 0 2p leads to the formation of isolated energy levels above the valence bands, and they become more dispersed with broader bandwidth with the increment of silver cluster size, which is responsible for the enhanced absorption in visible-light region. In the deep valence region, Ag 4d orbital turns more delocalized and hybrid with 0 2p states as the cluster size increases, which contributes to more covalent bond feature of Ag-O. Moreover, optical spectra demonstrate obvious red-shifts of the absorption edge with the increment of silver content, which enhances efficiently the visible-light photocatalytic activities of Bi2WO6 (0 0 1). The study provides insights into the enhanced photocatalyic mechanism of Ag/Bi2WO6 (0 0 1) and aids in the design of noble metal loaded visible-light plasmonic photocatalyst. (C) 2015 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000366592400082
ISSN号: 0169-4332
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25758
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Wang, F,Cao, K,Wu, Y,et al. Interfacial properties of the enhanced visible-light plasmonic Ag/Bi2WO6(001) nanocompo site[J]. APPLIED SURFACE SCIENCE,2016-01-01,360(-):1075—1079.
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