Release Time:2019-11-08  Hits:

Indexed by: Journal Papers

Date of Publication: 2019-07-01

Journal: CHEMPHOTOCHEM

Included Journals: SCIE

Volume: 3

Issue: 7

Page Number: 540-544

ISSN: 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.