In-situ template etching synthesis of BiON/BiOCl_(0.9)I_(0.1) heterojunction for photocatalytic degradation of tetracycline  

作　　者：Xiaodong Yang Qi Shen Wenwen Cao Bo Xu Yiqiang Sun Cuncheng Li 

机构地区：[1]School of Chemistry and Chemical Engineering,University of Jinan,Jinan 250022,China

出　　处：《ChemPhysMater》2024年第1期103-110,共8页化学物理材料（英文）

基　　金：supported by the National Natural Science Foun-dation of China(Grant Nos.52001136,52171179);the project funded by the China Postdoctoral Science Foundation(2020M671981,2021T140269).

摘　　要：Hierarchical heterostructures have emerged as promising candidates for the efficient photocatalytic degradation of antibiotics owing to their matched energy levels and tunable absorption bands.Herein,we report the facile synthesis of a heterojunction photocatalyst composed of basic bismuth nitrate(BiON)and BiOCl_(0.9)I_(0.1) using a simple room-temperature hydrolysis method.Our results demonstrate that the BiON/BiOCl_(0.9)I_(0.1) composite exhibits superior photodegradation performance compared to pure-phase materials owing to the catalytic enhancement at the heterointerface and the effective separation of the photogenerated carriers.Moreover,the unique three-dimensional microsphere morphology of the synthesized composite enhances its specific surface area and light absorption,further enhancing its photocatalytic activity.In the tetracycline(TC)photodegradation reaction as a model reaction,the catalyst could degrade 88%of TC in just 25 min.Overall,this work provides a promising strategy for the facile and low-cost synthesis of heterogeneous photocatalytic degradation materials.

关 键 词：HETEROJUNCTION Tetracycline reduction Visible light PHOTOCATALYSIS 

分 类 号：O643.36[理学—物理化学]