Bismuth sulphide-modified molybdenum disulphide as an efficient photocatalyst for hydrogen production under simulated solar light

W. P. Cathie Lee, Meei Mei Gui, Lling Lling Tan, Ta Yeong Wu, S. Sumathi, Siang-Piao Chai

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Abstract

To overcome rapid electron-hole recombination and the need for employing noble metals as co-catalysts for photocatalytic water splitting, the present work reports on the fabrication of bismuth sulphide (Bi2S3)-modified molybdenum disulphide (MoS2) as an efficient hybrid photocatalyst. Under simulated solar light irradiation, the Bi2S3/MoS2 photocatalyst with an optimum molar ratio of Mo to Bi of 50% (mol/mol) achieved a H2 production rate of 61.4 μmol/h. The photocatalytic enhancement was attributed to an effective charge transfer mechanism between Bi2S3 and MoS2, as evidenced by photoelectrochemical characterization. A plausible reaction mechanism over the as-prepared Bi2S3/MoS2 photocatalyst was also proposed based on the experimental results obtained.
Original languageEnglish
Pages (from-to)66–70
Number of pages5
JournalCatalysis Communications
Volume98
Early online date3 May 2017
DOIs
Publication statusPublished - 10 Jul 2017

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