In situ photodeposition of MoSx on CdS nanorods as a highly efficient cocatalyst for photocatalytic hydrogen production. Issue 29 (12th July 2017)

• Record Type: Journal Article
• Authors: Fu, Xianliang; Zhang, Li; Liu, Lihua; Li, Hui; Meng, Sugang; Ye, Xiangju; Chen, Shifu
• Is Part Of: Journal of materials chemistry. Volume 5:Issue 29(2017)
• Page Start: 15287
• Page End: 15293
• Publication Date: 2017-07-12
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/c7ta04814a
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : In situ photodeposition of MoS x on CdS-nanorods for photocatalytic HER was achieved with (NH4 )2 MoS4 as a precursor. The optimal MoS x loading amount is 0.2 wt% and its performance is comparable to the well-known Pt cocatalyst. A junction in form of Cd–S–Mo bond was proposed to account for the higher HER activity. Abstract : MoS x was successfully loaded on hexagonal CdS nanorods as a cocatalyst for the photocatalytic H2 evolution reaction (HER) by a convenient in situ photodeposition method with (NH4 )2 MoS4 as a precursor. The route is more effective to improve the activity of CdS than the conventional deposition methods. The optimal loading amount of MoS x was determined to be 0.2% (wt%, calculated in terms of MoS2 ) and the activity of the resulting sample is even higher than that of 0.2% Pt/CdS prepared by a similar photodeposition procedure. An intimate junction in the form of the Cd–S–Mo bond was suggested to account for the high HER performance. This finding opens a new avenue for the deposition and application of sulfide-based cocatalysts which have a great potential to replace noble metal cocatalysts for the photocatalytic HER.