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Preparation and Use of Photocatalytically Active Segmented Ag|ZnO and Coaxial TiO2-Ag Nanowires Made by Templated Electrodeposition
Published on: May 2, 2014
Efficient water splitting over a hybrid photocatalyst with (002) active facets and heterostructure
Yinjuan Dong1, Mengxue Chen1, Xiaohu Li1
1State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Advanced Catalysis of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China. dingyong1@lzu.edu.cn.
Abstract:
A series of P-CdS@P-MWO (M = Ni, Mn, Co, Zn, Fe, Cu) hybrid photocatalysts was constructed using different transition metal polyoxometalates [SiW11M(H2O)O39] as precursors via a pyrolysis-phosphidation strategy. Under visible light irradiation (λ = 420 nm), P-CdS@P-NiWO shows a good H2 evolution rate of 418.4 μmol g-1 h-1 and an AQE of 29.9% at 420 nm without adding a sacrificial reagent, which is a nearly 140-fold enhancement over CdS. This study provides a feasible strategy for designing efficient photocatalysts with highly active facets and heterostructure.
