中南民族大学学报（自然科学版）2025，Vol.44Issue(4)：447-454,8.DOI:10.20056/j.cnki.ZNMDZK.20240737
Bi2MoO6/MIL-101(Cr)复合光催化剂的制备及其可见光催化降解双氯芬酸性能
Preparation of Bi2MoO6/MIL-101(Cr)composite photocatalyst and its visible photocatalytic activity towards diclofenac degradation
摘要
Abstract
Bi2MoO6 composite metal-organic framework photocatalytic materials,(Bi2MoO6/MIL-101(Cr),Bi2MoO6/NH2-MIL-101(Cr)),were prepared by hydrothermal coprecipitation method,and were used for the photocatalytic degradation of diclofenac(DCF).The effects of composites ratio and solution pH on the degradation of DCF were investigated.The results showed that,when compared with Bi2MoO6,the composite catalysts showed much better catalytic performance towards DCF degradation,and the degradation rates on Bi2MoO6/MIL-101(Cr)(BMM5)and Bi2MoO6/NH2-MIL-101(Cr)(BNMM5)were both above 98%.At pH 4～6,the photocatalytic reaction efficiency of DCF on BMM5 and BNMM5 was also maintained at 97%.UV-vis DRS results showed that the band gaps of BMM5 and BMNM5 were 2.20 eV and 1.80 eV,respectively.The results of free radical trapping experiments showed that photogenerated holes(h+)and superoxide radicals(·O2-)were the main active species in the degradation process.The heterojunction in composites can accelerate the separation of electrons and holes,thus promoting the production of h+and·O2-for pollutant degradation.关键词
金属有机骨架/钼酸铋/双氯芬酸/可见光催化降解Key words
MOFs/Bi2MoO6/DCF/photocatalytic degradation分类
环境科学引用本文复制引用
薛发生,蒋实,鲍健,万岁安,赵玉凤,崔龙哲..Bi2MoO6/MIL-101(Cr)复合光催化剂的制备及其可见光催化降解双氯芬酸性能[J].中南民族大学学报（自然科学版）,2025,44(4):447-454,8.基金项目
中央高校基本科研业务费专项资金资助项目(CZQ23012) （CZQ23012）
