咔唑基共价有机框架用于光催化析氢  

Carbazole-based Covalent Organic Frameworks for Photocatalytic Hydrogen Evolution

作　　者：张志艳[1] 石琛琛[1] 张潇 米裕 ZHANG Zhi-yan;SHI Chen-chen;ZHANG Xiao;MI Yu(Hebei Chemical&Pharmaceutical College,Shijiazhuang 050026,China;Army Medical University Noncommissioned Officer School,Shijiazhuang 050081,China)

机构地区：[1]河北化工医药职业技术学院,河北石家庄050026 [2]陆军军医大学士官学校,河北石家庄050081

出　　处：《分子催化》2023年第4期367-374,I0002,I0003,共10页Journal of Molecular Catalysis(China)

摘　　要：光催化析氢反应是获得高纯氢气的一种具有广阔应用前景的技术.目前,开发经济高效、经久耐用的催化剂仍然是一个巨大的挑战.我们以3,3’,6,6’-四醛-9,9’-双咔唑和3,7-二氨基二苯并[b,d]噻吩-5,5-二氧化物为基本构建单元,通过经典的席夫碱反应,合成了供体-受体型咔唑基共价有机框架(CZ-COF),对其结构进行了表征,并探究了其光催化析氢性能.CZ-COF展现了优异的光催化活性,平均产氢速率为31μmol·h^(-1).Photocatalytic hydrogen evolution reaction is a promising technology for obtaining high purity hydrogen.Developing cost-effective,durable catalysts remains a huge challenge.In this work,donor-acceptor carbazole-based covalent organic frameworks(CZ-COF)was synthesized using 3,3',6,6'-tetraldehyde-9,9'-bicarbazole and 3,7-diaminodibenzo[b,d]thiene-5,5-dioxide through Schiff base reaction,and its photocatalytic performance was measured.CZ-COF showed excellent photocatalytic activity with hydrogen production rate of 31μmol·h^(-1).

关 键 词：共价有机框架 咔唑 光催化 析氢反应 

分 类 号：O643[理学—物理化学] TK91[理学—化学]