NiS2 Co-catalyst decoration on CdLa2S4 nanocrystals for efficient photocatalytic hydrogen generation under visible light irradiation

被引：75
作者：
Yuan, Yu-Peng [1 ,2 ]
Cao, Shao-Wen [1 ]
Yin, Li-Sha [1 ]
Xu, Lin [1 ]
Xue, Can [1 ]
机构：
[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Solar Fuels Lab, Singapore 639798, Singapore
[2] Anhui Univ, Sch Chem & Chem Engn, Lab Adv Porous Mat, Hefei 230039, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2013年 / 38卷 / 18期
基金：
中国国家自然科学基金;
关键词：
Photocatalysis; Water splitting; Hydrogen evolution; Solar energy conversion; Heterojunction; HYDROTHERMAL SYNTHESIS; WATER; EVOLUTION; ZNIN2S4; H-2; MOS2; CDS;
D O I：
10.1016/j.ijhydene.2013.03.169
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：
NiS2 nanoparticles as noble metal-free co-catalysts were deposited onto the CdLa2S4 nanocrystals through a hydrothermal process. The loading of NiS2 co-catalyst resulted in remarkable enhancement for H-2 production over the CdLa2S4 photocatalyst under visible light irradiation. The optimal hybrid photocatalyst with 2 wt% NiS2 loading exhibited a H-2 production rate of 2.5 mmol h(-1) g(-1), which was more than 3 times higher than that of the pristine CdLa2S4 photocatalyst. The promoted photocatalytic H-2 production by NiS2-loading is attributed to the enhanced separation of photogenerated electrons and holes as well as the activation effect of NiS2 for H-2 evolution. Copyright (c) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：7218 / 7223
页数：6
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