A microwave-assisted thermolysis route to single-step preparation of MoS2/CdS composite photocatalysts for active hydrogen generation. Issue 2 (30th November 2017)

• Record Type: Journal Article
• Authors: Jiang, Lili; Wang, Liangyu; Xu, Gengsheng; Gu, Lina; Yuan, Yupeng
• Is Part Of: Sustainable energy & fuels. Volume 2:Issue 2(2018)
• Page Start: 430
• Page End: 435
• Publication Date: 2017-11-30
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/c7se00475c
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : MoS2 /CdS hybrids can be rapidly prepared via single-step microwave-assisted thermolysis of a Mo/Cd-thiourea complex. Active hydrogen generation was achieved from the MoS2 /CdS hybrids that were prepared under optimum conditions. Abstract : Noble-metal free co-catalysts show great potential for boosting the photocatalytic hydrogen generation activity of a photocatalyst. However, the growth of these co-catalysts is always time and energy intensive due to the multiple operations. Herein we report on facile and rapid growth of a MoS2 co-catalyst on CdS for active hydrogen generation via single-step microwave-assisted thermolysis of a Mo/Cd-thiourea complex. The MoS2 /CdS hybrids by optimizing the microwave reaction time show active H2 generation upon visible light exposure. The highest H2 generation rate achieved was 11.4 mmol h −1 g −1 from the hybrid with 3 wt% MoS2 content, which is 2 times higher than that of 0.5 wt% Pt loaded CdS. The present microwave-assisted thermolysis is simple, easy to operate, and time and energy efficient, thereby providing a robust route for the preparation of metal sulfide-based photocatalysts.