Abstract
In order to further improve the yield of aromatic monomers from renewable resources, the selective cleavage of C–C bonds in lignin get more and more attention. In this work, Cs3Bi2Br9 (CBB) and covalent triazine frameworks (CTFs) complexes were firstly prepared by facile melting salt method. Due to CBB quantum dots embedded in CTF frame structure, the conversion rate of the composite photocatalyst for 2-phenoxy-1-phenylethanol (pp-ol) reached 100% under visible-light irradiation in 6 h. In-depth investigations verified that the electronic structure of the photocatalyst could be adjusted by changing calcination temperature. The electronic structure of the photocatalyst affected the type and the tendency of free radical, and then affected the selectivity of C-C bond cleavage. This work provides a simple method to prepare photocatalytic and used for aromatics production from renewable biomass feedstocks.
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