期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 168, 期 -, 页码 465-471出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2015.01.012
关键词
Z-scheme photocatalyst; Sulfur doping g-C3N4; Gold nanoparticle; Sandwich nanostructure; Hydrogen evolution
资金
- Natural Science Foundation of China [41376126]
- Foundation of Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences
Au and CdS nanoparticles were firstly deposited on the surface of g-CNS by two-step self-assembly process to afford sandwich-structured Z-scheme g-CNS/Au/CdS photocatalyst. The photocatalytic reduction of water to hydrogen was highly improved in lactic acid scavenger solution using the as-prepared gCNS/Au/CdS than using g-CNS/CdS in the presence of visible light, and the photocatalytic degradation of RhB dye was also improved. According to the photoluminescence spectra and excited state electron radioactive decay lifetime, when Au was paired between g-CNS and CdS, based on the Z-scheme chargecarrier transfer mechanism, the redox ability of the photogenerated holes and electrons was enhanced, followed by the increased lifetime of the photoelectrons. Therefore, the photocatalytic ability of the g-CNS/Au/CdS composite was significantly improved. (C) 2015 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据