Z‐Scheme Photocatalytic Water Splitting on a 2D Heterostructure of Black Phosphorus/Bismuth Vanadate Using Visible Light |
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| Authors: | Dr Mingshan Zhu Dr Zhichao Sun Prof Mamoru Fujitsuka Prof Tetsuro Majima |
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| Institution: | 1. The Institute of Scientific and Industrial Research (SANKEN), Osaka University, Osaka, Japan;2. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, P. R. China |
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| Abstract: | Spontaneously solar‐driven water splitting to produce H2 and O2, that is, the conversion of solar energy to chemical energy is a dream of mankind. However, it is difficult to make overall water splitting feasible without using any sacrificial agents and external bias. Drawing inspiration from nature, a new artificial Z‐scheme photocatalytic system has been designed herein based on the two‐dimensional (2D) heterostructure of black phosphorus (BP)/bismuth vanadate (BiVO4). An effective charge separation makes possible the reduction and oxidation of water on BP and BiVO4, respectively. The optimum H2 and O2 production rates on BP/BiVO4 were approximately 160 and 102 μmol g?1 h?1 under irradiation of light with a wavelength longer than 420 nm, without using any sacrificial agents or external bias. |
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| Keywords: | charge separation nanocomposites photocatalysis two-dimensional materials water splitting |
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