介孔CuCo/FeCeO_(x)催化剂协同催化类Fenton反应  

Synergistic Catalytic Fenton-Like Reaction by Mesoporous CuCo/FeCeO_(x)Catalyst

作　　者：陈濛濛 宋亚坤[1] 崔佳乐 曹君营 李冰[1] 刘军辉 刘振[1] CHEN Mengmeng;SONG Yakun;CUI Jiale;CAO Junying;LI Bing;LIU Junhui;LIU Zhen(School of Chemistry and Chemical Engineering,Henan University of Science and Technology,Luoyang 471000,China)

机构地区：[1]河南科技大学化学化工学院,洛阳471000

出　　处：《硅酸盐通报》2023年第8期2985-2993,共9页Bulletin of the Chinese Ceramic Society

基　　金：国家自然科学基金(21908043);河南省科技攻关项目(232102230148,232102240006)。

摘　　要：类Fenton反应是降解水中有机污染物的有效方法之一,开发高效的非均相催化剂至关重要。通过硬模板法制备了Fe掺杂的具有有序介孔结构的FeCeO_(x)材料,以此为载体通过浸渍法负载Cu和Co后,构建了具有多金属活性位点的催化剂。催化剂在亚甲基蓝降解反应中表现出优异的催化性能,在45 min内可将亚甲基蓝完全降解,且具有良好的循环使用性能,使用5次后亚甲基蓝降解率仍达到93.3%。催化剂的介孔结构有利于吸附亚甲基蓝,暴露更多的活性位点,多金属之间的协同作用促进了催化剂上的电子转移,从而提高H_(2)O_(2)的活化效率和促进·OH的产生。The Fenton-like reaction is one of the most effective methods for decomposing organic pollutants in water.Designing efficient heterogeneous catalysts is crucial in this industry.The hard template method was used to construct FeCeO_(x)materials with Fe-doped ordered mesoporous structures,and the impregnation method was employed to create multi-metallic active sites after loading Cu and Co as the carrier.Methylene blue could be entirely eliminated in 45 min by using an as-prepared catalyst with strong recycling capacity.After 5 runs,methylene blue degradation could still reach 93.3%.The porous structure of the catalyst is conducive to enhancing methylene blue absorption,exposing more active spots,and the synergistic effects of multi-metals promote electron transport,thus boosting the activation efficiency of H_(2)O_(2)and the formation of·OH.

关 键 词：类FENTON反应 介孔结构 催化剂 协同作用 非均相催化 

分 类 号：TQ426.82[化学工程]