标题:A General Strategy to Fabricate NixP as Highly Efficient Cocatalyst via Photoreduction Deposition for Hydrogen Evolution
作者:Dong Y.; Kong L.; Jiang P.; Wang G.; Zhao N.; Zhang H.; Tang B.
作者机构:[Dong, Y] Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan University, Wuxi, 214122, China;[ 更多
通讯作者:Dong, Y(dongym@jiangnan.edu.cn)
通讯作者地址:[Dong, Y] Key Laboratory of Synthetic and Biological Colloids, School of Chemical and Material Engineering, Jiangnan UniversityChina;
来源:ACS Sustainable Chemistry and Engineering
出版年:2017
卷:5
期:8
页码:6845-6853
DOI:10.1021/acssuschemeng.7b01079
关键词:Hydrogen generation; Metal phosphide; Photocatalysis; Photochemical; Water splitting
摘要:Presently, precise deposition of transition metal phosphides at the electron outlet of photoactive materials as cocatalysts for hydrogen generation is rarely reported. Demonstrated here is a general photochemical strategy for the preparation of metal phosphides as cocatalysts for hydrogen generation. In this work, NixP was successfully deposited on g-C3N4 using nickel sulfate (NiSO4) and hypophosphite sodium (NaH2PO2) as Ni and P sources, respectively. The NixP/g-C3N4 composite exhibits excellent performance of hydrogen evolution via water splitting (about 8585 μmol g-1 h-1 in a triethanolamine aqueous solution under a 300 W Xe lamp with an AM 1.5G filter). More importantly, due to the intrinsic acid-resistant properties of NixP and g-C3N4, the NixP/g-C3N4 composite demonstrated excellent acid-stable photocatalytic activity for H2 evolution (stable run for 75 h under acidic solution of pH 2). Furthermore, the mechanism for photocatalytic activity of g-C3N4 enhanced by NixP was investigated in detail by steady-state photoluminescence spectra and surface photovoltage spectra, which indicated that separation efficiency of photogenerated carriers from g-C3N4 was effectively enhanced by NixP. © 2017 American Chemical Society.
收录类别:SCOPUS;SCOPUS
Scopus被引频次:7
最新影响因子:5.267
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85027053120&doi=10.1021%2facssuschemeng.7b01079&partnerID=40&md5=a1f2c17e43fdbb87aadee2fbe1cf440c
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