Journal
CHINESE JOURNAL OF CATALYSIS
Volume 41, Issue 10, Pages 1674-1681Publisher
SCIENCE PRESS
DOI: 10.1016/S1872-2067(20)63581-1
Keywords
Photocatalysis; Pyroelectricity; Microwave; Suzuki coupling reaction
Funding
- National Natural Science Foundation of China [21876114, 21761142011, 51572174]
- Shanghai Government [19160712900]
- International Joint Laboratory on Resource Chemistry (IJLRC)
- Ministry of Education of China [PCSIRT_IRT_16R49]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning and Shuguang Research Program of Shanghai Education Committee
- Shanghai Engineering Research Center of Green Energy Chemical Engineering [18DZ2254200]
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Combining microwave radiation with photocatalytic systems is a promising method to inhibit photogenerated electron-hole recombination and enhance the photocatalytic reaction performance. In this study, we have designed Pd/PbTiO3 catalysts that can use both microwave fields and photocatalysis. Benefiting from the synergistic effect of microwave field and UV light, the PbTiO3 crystals convert thermal energy into electrical energy via the pyroelectricity effect, generating positive and negative charges (q(+) and q(-)), while Pd nanoparticles significantly improve the quantum efficiency of the photocatalytic process. The composite catalyst significantly enhances the reaction rate and selectivity of the model Suzuki coupling reaction performed with bromobenzene. Microwave fields can directly act on chemical systems, promoting or changing various chemical reactions in unique ways. (c) 2020, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
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