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Cobalt Lactate Complex as Hole Cocatalyst for Significantly Enhanced Photocatalytic H2-Production Activity over CdS Nanorods

Abstract

Photocatalytic water splitting has been widely investigated in recent years, and most of the catalysts develop strongly on noble metal co-catalysts which are scarce and expensive. Herein, we report a noble metal free system that using CdS nanorod as photocatalyst and cobalt lactate complex as cocatalyst. Under visible light irradiation, a H2-evolution rate of 15.59 mmol h-1g-1 is obtained when the CdS and cobalt lactate complex are used for photocatalytic water splitting; the rate is 3 times of that obtained with Pt/CdS photocatalyst. Moreover, the stability of CdS is also obviously improved by using cobalt lactate complex as cocatalyst. The origin of the improved photoactivity is investigated by a variety of controlled experiments. The results show that cobalt lactate complex as a hole acceptor inhibits the recombination of photo-generated electrons and holes.

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Publication details

The article was received on 11 Jan 2018, accepted on 13 Feb 2018 and first published on 13 Feb 2018


Article type: Paper
DOI: 10.1039/C8CY00067K
Citation: Catal. Sci. Technol., 2018, Accepted Manuscript
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    Cobalt Lactate Complex as Hole Cocatalyst for Significantly Enhanced Photocatalytic H2-Production Activity over CdS Nanorods

    L. Wang, N. Xu, X. Pan, Y. He, X. wang and W. Su, Catal. Sci. Technol., 2018, Accepted Manuscript , DOI: 10.1039/C8CY00067K

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