摘要
通过将酞菁钴(CoPc)在K/Na掺杂的g-C_(3)N_(4)纳米片表面自组装制备了一种稳定的CoPc/K/Na@CN Z型异质结复合材料,将其作为可循环光催化剂,在室温、60 W蓝光LED灯照射下实现了苄胺直接光催化氧化为N-亚苄基苄胺联产H_(2)O_(2)。在最佳反应条件下得到N-亚苄基苄胺和过氧化氢,苄胺的转化率为97%,过氧化氢产率为113.7μmol/(g·h)。在简单离心、溶剂洗涤并在真空下干燥后,将CoPc/K/Na@CN异质结复合材料回收利用5次,其光催化活性基本保持不变。
A stable Z-type CoPc/K/Na@CN heterojunction composite is fabricated via simple self-assembly of cobalt phthalocyanine(CoPc)on the surface of K/Na-doped g-C_(3)N_(4)nanosheets,and used as a recyclable photocatalyst to realize the direct photocatalytic oxidation of benzylamine to N-benzylidene benzylamine and H_(2)O_(2)at room temperature under irradiation by an 60 W blue LED lamp.Under the optimum reaction conditions,N-benzylidene benzylamine and hydrogen peroxide are obtained,with a conversion rate of 97%for benzylamine,and a production rate of 113.7μmol/(g·h)for hydrogen peroxide.After simple centrifugation,washing with solvent and drying under vacuum,CoPc/K/Na@CN heterojunction composite can be recovered and recycled for five times,and its photocatalytic activity remains basically unchanged.
作者
刘宇昂
李心忠
游锦芳
杨艳辉
LIU Yu-ang;LI Xin-zhong;YOU Jin-fang;YANG Yan-hui(College of Chemical Engineering,Fuzhou University,Fuzhou 350108,China;College of Materials and Chemical Engineering,Minjiang University,Fuzhou 350108,China;Fujian Engineering and Research Centre of New Chinese Lacquer Materials,Fuzhou 350108,China;Fujian Provincial Universities Engineering Research Centre of Green Materials and Chemical Engineering,Fuzhou 350108,China;Fujian Key Laboratory of Functional Marine Sensing Materials,Fuzhou 350108,China)
出处
《现代化工》
北大核心
2025年第5期144-150,157,共8页
Modern Chemical Industry
基金
福建省自然科学基金项目(2022J011115)。
