Improved photocatalytic activity of CdS/reduced graphene oxide (RGO) for H2 evolution by strengthening the connection between CdS and RGO sheets

被引：57
作者：
Hong, Yuanchen [1 ]
Shi, Penghui [1 ]
Wang, Peifu [1 ]
Yao, Weifeng [1 ]
机构：
[1] Shanghai Univ Elect Power, Coll Environm & Chem Engn, Shanghai Key Lab Mat Protect & Adv Mat Elect Powe, Shanghai 200090, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2015年 / 40卷 / 22期
基金：
中国国家自然科学基金;
关键词：
CdS; Hydrogen production; Photocatalysis; Reduced graphene oxide; VISIBLE-LIGHT; SELECTIVE REDUCTION; HIGHLY EFFICIENT; NITRO ORGANICS; NANOCOMPOSITES; ENHANCEMENT;
D O I：
10.1016/j.ijhydene.2015.04.005
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
CdS were synthesised in situ on graphene oxide (GO) using a simple solvothermal method. GO in the prepared powders was then photoreduced into RGO to form the CdS/GO composites. The samples were characterised by using the X-ray diffraction spectra (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), fluorescence spectrum and Raman spectrum. The prepared CdS/RGO exhibited much higher activity for H-2 evolution than CdS or CdS mechanically loaded with GO under visible light irradiation (>420 nm). The improved photocatalyst performance of CdS/RGO was attributed to enhancement of the connection between CdS and RGO sheets, which accelerates the effect of the separation of photoinduced electrons and holes by transferring the photoinduced electron to RGO sheets.Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：7045 / 7051
页数：7
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