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- W3150553537 abstract "Selective oxidation of saturated CH bonds to value-added chemicals under mild conditions is of great importance in chemical community. In this work, conjugated polymer (PMPTA) coated MIL-125(Ti) composites with type I heterojunction structure were obtained from the mixture of MIL-125(Ti), melamine and terephthalaldehyde via a solvent-free hydrothermal method. The MP-30 with optimal composition has excellent photocatalytic activity for the selective oxidation of benzylic CH bonds to their corresponding aldehydes and ketones under the illumination of 420 nm light using O2 as oxidant and N-Hydroxyphthalimide (NHPI) as co-catalyst. The conversions of fluorene catalyzed by MIL-125(Ti) and PMTPA are 32% and 65%, respectively, while the conversions of fluorene over MP-20, MP-30 and MP-40 are significantly improved, which are 86%, 99% and 77%, respectively. The characterization results from photoluminescence spectroscopy, photocurrent and band gap positions demonstrate that the one-way transfer of electrons and holes between the MIL-125(Ti) and PMTPA through the heterojunction structure allows the substrate to react rapidly on the outer layer of heterostructured MIL-125(Ti)/PMTPA, resulting an increase in photocatalytic efficiency. Moreover, the introduced heterojunction structure reduces the recombination of photo-generated electrons and holes and improves the efficiency of the conversion of holes into reaction intermediates." @default.
- W3150553537 created "2021-04-13" @default.
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- W3150553537 date "2021-07-01" @default.
- W3150553537 modified "2023-10-17" @default.
- W3150553537 title "Conjugated polymer coated MIL-125(Ti) as an efficient photocatalyst for selective oxidation of benzylic C H bond under visible light" @default.
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- W3150553537 doi "https://doi.org/10.1016/j.apsusc.2021.149732" @default.
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