Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS

doi:10.1021/acssuschemeng.8b05917

	Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS
	Shao, Mengmeng; Shao, Yangfan; Ding, Shengjie; Tong, Rui; Zhong, Xiongwei; Yao, Lingmin; Ip, Weng Fai; Xu, Baomin; Shi, Xing-Qiang; Sun, Yi-Yang
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2019-02-18
卷号	7 期号:4 页码:4220
关键词	MoS2/Mo2C CdS Photocatalytic hydrogen evolution Co-catalyst
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b05917
文献子类	Article
英文摘要	Searching photocatalysts for efficient hydrogen production has been a challenging issue for solar-energy harvesting. Using co-catalyst is proven to be an effective approach to improve the efficiency of photocatalyst in water-splitting. Here, we report that carbonized MoS2 (MoS2/Mo2C) can be a superactive co-catalyst in solar-driven hydrogen production. We show that MoS2/Mo2C decorated CdS achieves a high photocatalytic hydrogen evolution rate (34 mmol/h/g, similar to 112 times higher than pure CdS) and excellent apparent quantum efficiency (41.4% at 420 nm). The outstanding photocatalytic performance of MoS2/Mo2C/CdS is attributed to the metallic characteristic of MoS2/Mo2C and suitable Gibbs free energy of hydrogen adsorption, leading to enhanced light absorption, fast separation and transportation of photoinduced carriers, and optimal activity in hydrogen evolution reaction (HER). We further show that MoS2/Mo2C as co-catalyst can also dramatically improve the photocatalytic activity of g-C3N4. Our findings demonstrate that the carbonized transition metal disulfide can be active as co-catalyst in photocatalysis, providing guidance on exploring novel photocatalysts for energy harvesting.
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/27327]
专题	中国科学院上海硅酸盐研究所
推荐引用方式 GB/T 7714	Shao, Mengmeng,Shao, Yangfan,Ding, Shengjie,et al. Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(4):4220.
APA	Shao, Mengmeng.,Shao, Yangfan.,Ding, Shengjie.,Tong, Rui.,Zhong, Xiongwei.,...&Pan, Hui.(2019).Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(4),4220.
MLA	Shao, Mengmeng,et al."Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.4(2019):4220.