Synergetic effect of dual co-catalysts on the activity of p-type Cu2O crystals with anisotropic facets

Chemistry : a European Journal
Rengui LiCan Li

Abstract

Spatial separation of reduction sites and oxidation sites to inhibit the recombination of photogenerated electrons and holes plays a vital role in improving the efficiency of photocatalyst systems. It is very challenging to rationally deposit cocatalysts on the right facets (sites), namely, the reduction cocatalyst on the reduction facets (sites) and the oxidation cocatalyst on the oxidation facets (sites). Herein, we report that the reduction and oxidation cocatalysts can be selectively constructed on the different facets of p-type Cu2 O crystals with anisotropic facets, but not on the Cu2 O crystal with isotropic facets. The deposition of dual cocatalysts on the different facets resulted in a remarkable synergetic effect in the photocatalytic performance, which could be attributed to the spatial separation of the photogenerated charges between facets. Our work reports an instructive strategy for constructing high-efficiency photocatalyst systems for solar energy conversion.

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Citations

Oct 21, 2016·Angewandte Chemie·Bingqing ZhangCan Li
Mar 11, 2017·Physical Chemistry Chemical Physics : PCCP·Zhaoyong LinGuowei Yang
Oct 7, 2016·Chemical Communications : Chem Comm·Huihua GongHongjian Yan
Jan 20, 2018·Dalton Transactions : an International Journal of Inorganic Chemistry·Lele LuYuqiu Huo
Jan 21, 2017·Advanced Science·Song BaiYujie Xiong
May 15, 2020·ACS Applied Materials & Interfaces·Ahmed Mahmoud IdrisCan Li
Mar 2, 2019·The Journal of Physical Chemistry Letters·Linchao MuCan Li
Dec 15, 2016·Chemical Reviews·Kasper Wenderich, Guido Mul

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