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Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
V-Shaped {Cu8}-Added Polyoxometalate for Visible-Light-Driven Hydrogen Evolution and Photothermal Conversion
Zhen-Wen Wang1, Juan Chen1, Guo-Yu Yang1
1MOE Key Laboratory of Cluster Science, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing102488, China.
Abstract:
A {Cu8}-added polyoxometalate (Cu8AP), H3Cs13[CuB(OH)3(GeW6O26)Cu8(H2O)2(GeW9O34)2]·2Cl·15H2O (1), was synthesized via the lacunary directing synthetic strategy. Visible-light-driven photocatalytic H2 evolution performance revealed an exceptional evolution rate of 12632.66 μmol·h-1·g-1, indicative of superior heterogeneous water-splitting capabilities. Additionally, near-infrared (NIR) absorption was observed, enabling a photothermal conversion efficiency of 73.37%, with a temperature increase from 21.4 to 123.8 °C within 90 s under 808 nm laser irradiation (0.9 W·cm-2).
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