Vanadium disulfide decorated graphitic carbon nitride for super-efficient solar-driven hydrogen evolution

Shao, Mengmeng1; Shao, Yangfan1,2; Ding, Shengjie1; Wang, Jingwei3,4; Xu, Jinchen1; Qu, Yuanju1,5; Zhong, Xiongwei1,6; Chen, Xinman7; Ip, Weng Fai8; Wang, Ning3,4; Xu, Baomin6; Shi, Xingqiang2; Wang, Xuesen9; Pan, Hui1

2018-12-05

10.1016/j.apcatb.2018.05.084

APPLIED CATALYSIS B-ENVIRONMENTAL   影响因子和分区

0926-3373

1873-3883

Highly efficient, earth-abundant, and low-cost photocatalysts are widely pursued for solar-driven hydrogen generation from water. Herein, we first report vanadium disulfide (VS2) with high hydrogen evolution reaction (HER) activity both in basal and edges to be the co-catalyst of graphitic carbon nitride (g-C3N4) for ultrahigh solar-driven hydrogen production. VS2-decorated g-C3N4 shows an impressing photocatalytic hydrogen evolution with a rate of 87.4 mu mol/h, 26 times higher than pristine g-C3N4. Our combined experimental and computational studies reveal that the excellent efficiency of the composite is attributed to: (1) effective electron-hole separation and electron transfer from g-C3N4 to VS2, resulting from the optimal band alignment between VS2 and g-C3N4 and metallic characteristic of VS2; (2) fast hydrogen generation on the surface due to the high surface area and excellent HER activity of VS2. Our findings demonstrate that VS2/g-C3N4 may be applicable in solar driven water splitting, and the design principle can be applied to search for novel photocatalysts.

g-C3N4 VS2 Photocatalytic hydrogen evolution Charge transfer Electron-hole separation

SCI ; EI

英语

其他

Singapore MOE AcRF grant[R-144-000-365-112]

Chemistry ; Engineering

Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical

WOS:000442973700032

ELSEVIER SCIENCE BV

20182405302526

Carbon disulfide ; Carbon nitride ; Charge transfer ; Nitrides ; Solar power generation ; Vanadium compounds

Gas Fuels:522 ; Solar Power:615.2 ; Chemical Reactions:802.2 ; Inorganic Compounds:804.2

CHEMISTRY

Web of Science

1.Univ Macau, Inst Appl Phys & Mat Engn, Macau, Peoples R China
2.Southern Univ Sci & Technol, Dept Phys, Shenzhen, Peoples R China
3.Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China
4.Hong Kong Univ Sci & Technol, Inst Nano Sci & Technol, Hong Kong, Hong Kong, Peoples R China
5.Jiangxi Normal Univ, Coll Phys & Commun Elect, Nanchang, Jiangxi, Peoples R China
6.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen, Peoples R China
7.South China Normal Univ, Inst Optoelect Mat & Technol, Guangzhou, Guangdong, Peoples R China
8.Univ Macau, Fac Sci & Technol, Chem Supporting Grp, Macau, Peoples R China
9.Natl Univ Singapore, Dept Phys, Singapore, Singapore

Shao, Mengmeng,Shao, Yangfan,Ding, Shengjie,et al. Vanadium disulfide decorated graphitic carbon nitride for super-efficient solar-driven hydrogen evolution[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,237:295-301.

Shao, Mengmeng.,Shao, Yangfan.,Ding, Shengjie.,Wang, Jingwei.,Xu, Jinchen.,...&Pan, Hui.(2018).Vanadium disulfide decorated graphitic carbon nitride for super-efficient solar-driven hydrogen evolution.APPLIED CATALYSIS B-ENVIRONMENTAL,237,295-301.

Shao, Mengmeng,et al."Vanadium disulfide decorated graphitic carbon nitride for super-efficient solar-driven hydrogen evolution".APPLIED CATALYSIS B-ENVIRONMENTAL 237(2018):295-301.