One-pot Synthesis of MoO_(3)/PI Composite with Enhanced Photocatalytic Performance for Oxidative Coupling of Amines to Imines  

作　　者：Zhao Wenjie Du Chengxin Song Yu Zhou Yafen Wang Qing Zhou Limei Xu Bin 

机构地区：[1]Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province,College of Chemistry and Chemical Engineering,China West Normal University,Nanchong,China [2]Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education,Sichuan University of Science&Engineering,Zigong,China

出　　处：《China Petroleum Processing & Petrochemical Technology》2024年第2期57-71,共15页中国炼油与石油化工（英文版）

基　　金：supported by the Opening Project of Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan (LZJ2101);the Fundamental Research Funds of China West Normal University (19D038)

摘　　要：Organic-inorganic MoO_(3)/PI(MoPI)composites were prepared using a simple one-pot thermal copolymerization method.The resulting composites exhibited enhanced photocatalytic activity for the selective oxidation of benzylamine to N-benzylidene benzylamine(N-BDBA)in ambient air under simulated solar light irradiation compared to pristine MoO_(3) or polyimide(PI).In particular,the MoPI composite with a 0.3:1 molar ratio of Mo to melamine,referred to as MoPI-0.3,demonstrated the best performance in the photo-oxidation of benzylamine,achieving a benzylamine conversion of 95%with a N-BDBA selectivity exceeding 99%after 3 h irradiation.The enhanced photocatalytic activity of the MoPI-0.3 catalyst was attributed to the formation of a direct Z-scheme heterojunction between MoO_(3) and PI,facilitating more efficient separation of the photoinduced electrons and holes.Additionally,the MoPI-0.3 composite maintained considerably high activity over four consecutive cycles,highlighting its good stability and recyclability.Furthermore,the MoPI-0.3 composite could photo-oxidize benzylamine derivatives and heterocyclic amines to their corresponding imines,demonstrating the universal applicability of this composite catalyst.

关 键 词：MoO3/PI composite photocatalysis amine oxidation IMINE 

分 类 号：TQ226.31[化学工程—有机化工] O643.36[理学—物理化学] O644.1[理学—化学]