醚键桥联金属酞菁聚合物的合成及光催化性能  

Synthesis and photocatalytic properties of ether-bonded metal phthalocyanine polymers

作　　者：何淑媛 员佩雪 董昕儒 张学俊[1] HE Shuyuan;YUN Peixue;DONG Xinru;ZHANG Xuejun(College of Chemistry and Chemical Engineering,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学化学与化工学院,山西太原030051

出　　处：《应用化工》2025年第2期347-354,共8页Applied Chemical Industry

基　　金：先进炭基电极材料山西省重点实验室开放研究基金(2022C80301)。

摘　　要：使用溶剂热法,通过4-硝基邻苯二甲腈与2,7-二羟基-9-芴酮、1,5-二羟基蒽醌、2,6-二羟基蒽醌亲核取代得3种酞菁共价有机聚合物前驱体(2,7-BPF、1,5-DPA、2,6-DPA),进一步与ZnAc在1,8-二氮杂二环[5.4.0]十一碳-7-烯(DBU)催化下自聚形成3种醚键桥联金属酞菁共价有机聚合物(2,7-BCOF-Zn,1,5-DCOF-Zn,2,6-DCOF-Zn)。通过FTIR、PXRD、N_(2)吸附-脱附测试、SEM、XPS、UV-Vis DRS对前驱体和共价有机聚合物进行结构与微观形貌表征。以亚甲基蓝(MB)为模型污染物,考察3种聚合物在光照条件下对MB吸附降解能力,分析光催化条件下产生的活性物质。2,7-BCOF-Zn,1,5-DCOF-Zn,2,6-DCOF-Zn对MB均有良好催化能力,其中2,6-DCOF-Zn吸附降解能力最佳,降解率达94.5%,经过5次循环实验,降解率保持在90%以上。Three precursors of phthalocyanine covalent organic polymers(2,7-BPF,1,5-DPA,and 2,6-DPA)were obtained by nucleophilic substitution reaction of 4-nitrophthalonitrile witH_(2),7-dihydroxy-9-fluorenone,1,5-dihydroxyanthraquinone and 2,6-dihydroxyanthraquinone,respectively.Furthermore,three ether-bonded metal phthalocyanine covalent organic polymers(2,7-BCOF-Zn,1,5-DCOF-Zn,2,6-DCOF-Zn)were formed by template bonding with ZnAc under 1,8-diazabicyclo[5.4.0]undec-7-ene(DBU)catalytic conditions.The structure and micromorphology of the precursors and the prepared covalent organic polymers were characterized by FTIR,PXRD,N_(2) adsorption-desorption test,SEM,XPS and UV-Vis DRS.Methylene blue(MB)was used as a model pollutant to investigate the adsorption and degradation capacity of three polymers under light conditions,and the active substances produced under photocatalytic conditions were analyzed.2,7-BCOF-Zn,1,5-DCOF-Zn,and 2,6-DCOF-Zn all have good catalytic ability for MB,among which 2,6-DCOF-Zn has the best adsorption and degradation ability for MB,with a degradation rate of 94.5%,and the degradation rate remains above 90%after five photocatalytic cycle experiments.

关 键 词：酞菁 共价有机框架 光催化 

分 类 号：TQ217[化学工程—有机化工] TQ251