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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; Wang, Xuesen; Pan, Hui
2019-02-18
Source PublicationACS SUSTAINABLE CHEMISTRY & ENGINEERING
ISSN2168-0485
Volume7Issue:4Pages:4220
SubtypeArticle
AbstractSearching 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.
KeywordMoS2/Mo2C CdS Photocatalytic hydrogen evolution Co-catalyst
DOI10.1021/acssuschemeng.8b05917
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Engineering
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:17[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sic.ac.cn/handle/331005/27327
Collection中国科学院上海硅酸盐研究所
Recommended Citation
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.
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