标题:AgI/AgCl/H2WO4 Double Heterojunctions Composites: Preparation and Visible-Light Photocatalytic Performance
作者:Liu, Chunping; Lin, Haili; Gao, Shanmin; Yin, Ping; Guo, Lei; Huang, Baibiao; Dai, Ying
作者机构:[Liu, Chunping; Gao, Shanmin; Yin, Ping; Guo, Lei] Ludong Univ, Coll Chem & Mat Sci, Yantai 264025, Peoples R China.; [Lin, Haili] Huaibei Normal Un 更多
通讯作者:Liu, C
通讯作者地址:[Liu, CP]Ludong Univ, Coll Chem & Mat Sci, Yantai 264025, Peoples R China.
来源:BULLETIN OF THE KOREAN CHEMICAL SOCIETY
出版年:2014
卷:35
期:2
页码:441-447
DOI:10.5012/bkcs.2014.35.2.441
关键词:AgI/AgCl/H2WO4; Heterojunctions; Preparation; Visible light; photocatalytic
摘要:AgI/AgCl/H2WO2 double heterojunctions photocatalyst was prepared via deposition-precipitation followed by ion exchange method. The structure, crystallinity, morphology, chemical content and other physical-chemical properties of the samples are characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive x-ray spectra (EDX), UV-vis diffuse reflectance spectroscopy (DRS), and photoluminescence (PL). The photocatalytic activity of the AgI/AgCl/H2WO4 was evaluated by degrading methyl orange (MO) under visible light irradiation (lambda > 400 nm). The double heterojunctions photocatalyst displayed more efficient photocatalytic activity than pure AgI, AgCl, H2WO4 and AgCl/H2WO4. Based on the reactive species and energy band structure, the enhanced photocatalytic activity mechanism of AgI/AgCl/H2WO4 was discussed in detail. The improved photocatalytic performance of AgI/AgCl/H2WO4 double heterojunctions could be ascribed to the enhanced interfacial charge transfer and the inhibited recombination of electron-hole pairs, which was in close relation with the AgI/AgCl/H2WO4 heterojunctions formed between AgI, AgCl and H2WO4.
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:6
Scopus被引频次:6
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84894598990&doi=10.5012%2fbkcs.2014.35.2.441&partnerID=40&md5=d67aa1ea2030178e12ca1edd15662992
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