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Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS
Shao M.1; Shao Y.1,3; Ding S.1; Tong R.1; Zhong X.1,4; Yao L.5; Ip W.F.2; Xu B.4; Shi X.-Q.3; Sun Y.-Y.6; Wang X.7; Pan H.1,2
2019-02-18
Source PublicationACS Sustainable Chemistry and Engineering
ISSN21680485
Volume7Issue:4Pages:4220-4229
Abstract

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 MoS (MoS /Mo C) can be a superactive co-catalyst in solar-driven hydrogen production. We show that MoS /Mo C decorated CdS achieves a high photocatalytic hydrogen evolution rate (34 mmol/h/g, â112 times higher than pure CdS) and excellent apparent quantum efficiency (41.4% at 420 nm). The outstanding photocatalytic performance of MoS /Mo C/CdS is attributed to the metallic characteristic of MoS /Mo C 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 MoS /Mo C as co-catalyst can also dramatically improve the photocatalytic activity of g-C N . 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 Co-catalyst Photocatalytic Hydrogen Evolution Cds
DOI10.1021/acssuschemeng.8b05917
URLView the original
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Engineering ; Science & Technology - Other Topics
WOS SubjectChemistry, Multidisciplinary ; Green & Sustainable Science & Technology ; Engineering, Chemical
WOS IDWOS:000459367400064
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Cited Times [WOS]:3   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionInstitute of Applied Physics and Materials Engineering
Affiliation1.Univ Macau, Fac Sci & Technol, Inst Appl Phys & Mat Engn, Joint Key Lab,Minist Educ, Taipa, Macao, Peoples R China
2.Univ Macau, Fac Sci & Technol, Dept Phys & Chem, Taipa, Macao, Peoples R China
3.Southern Univ Sci & Technol, Dept Phys, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Dept Mat Sci & Engn, 1088 Xueyuan Rd, Shenzhen 518055, Peoples R China
5.Guangzhou Univ, Sch Phys & Elect Engn, Guangzhou Higher Educ Mega Ctr, 230 Wai Huan Xi Rd, Guangzhou 510006, Guangdong, Peoples R China
6.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 585 Heshuo Rd, Shanghai 201899, Peoples R China
7.Natl Univ Singapore, Dept Phys, 2 Sci Dr 3, Singapore 117542, Singapore
First Author AffilicationUniversity of Macau
Recommended Citation
GB/T 7714
Shao M.,Shao Y.,Ding S.,et al. Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS[J]. ACS Sustainable Chemistry and Engineering,2019,7(4):4220-4229.
APA Shao M..,Shao Y..,Ding S..,Tong R..,Zhong X..,...&Pan H..(2019).Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS.ACS Sustainable Chemistry and Engineering,7(4),4220-4229.
MLA Shao M.,et al."Carbonized MoS2: Super-Active Co-Catalyst for Highly Efficient Water Splitting on CdS".ACS Sustainable Chemistry and Engineering 7.4(2019):4220-4229.
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