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Preparation of Polyoxometalate-based Photo-responsive Membranes for the Photo-activation of Manganese Oxide Catalysts
Published on: August 7, 2018
Selective Dehydrogenative Coupling of Furfuryl Alcohol Using an Fe-Containing Polyoxometalates/CdS Photocatalytic
Manzhou Chi1, Yun Qin1, Mengzhen Ren1
1MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Intelligent Molecular Materials and High-throughput Manufacturing, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, P. R. China.
Abstract:
Photocatalytic dehydrogenative coupling of biomass-derived furfuryl alcohol (FA) provides a promising route for simultaneous biomass upgrading and solar-to-chemical energy conversion. Herein, two novel isostructural Fe-containing polyoxometalates (POMs), FeII 2(H2O)6H19[FeIII 7SbV 4(H2O)12W6O20K2(C4H2O6)2(B-β-SbIIIW9O33)6]·55H2O (1) and FeII 2(H2O)6Na4H11.8[FeIII 8.6(H2O)16W8.4O22Na2(B-β-BiIIIW9O33)6]·41H2O (2), were synthesized via a one-pot solvothermal method and coupled with CdS nanorods (CdS NRs) to construct hybrid photocatalysts for FA conversion under 450 nm LED irradiation. Among them, 1/CdS exhibited superior performance, achieving 78.95% FA conversion, 85.91% selectivity toward hydrofuroin (HDF), and efficient H2 evolution (13.49 μmol). Structural and mechanistic studies revealed that the synergistic interaction between CdS NRs and Fe-containing POMs promotes charge separation and migration, thereby enhancing photocatalytic efficiency. This work highlights the potential of transition-metal-functionalized POMs for integrated biomass valorization and solar fuel production.
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