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Indexed by:Journal Papers

Date of Publication:2019-07-01

Journal:CHEMPHOTOCHEM

Included Journals:SCIE

Volume:3

Issue:7

Page Number:540-544

ISSN No.:2367-0932

Key Words:graphitic carbon nitride; hydrogen generation; metal phosphides; photocatalysis; water splitting

Abstract:Transition metal phosphides as promising noble metal free cocatalysts are gaining increasing interest for hydrogen generation and other energy conversion reactions. The present study reports a new Fe2P/g-C3N4 hybrid for efficient photocatalytic hydrogen generation by water splitting under visible light irradiation. The H-2 production rate obtained using this system is approximately 15 times higher than that obtained using pure g-C3N4, and is comparable with that of Pt/g-C3N4 under the same conditions. According to detailed studies using UV/Vis diffuse reflectance and photoluminescence spectroscopies as well as photoelectrochemical measurements, the reason for the high efficiency of the Fe2P/g-C3N4 hybrid is due to a highly effective separation and low recombination rate of photogenerated electrons and holes rather than absorption under visible light. The present study reports a promising non-toxic photocatalyst with low cost and high natural abundance for improving photocatalytic H-2 generation.