BiOI负载MIL-101(Fe)@BiOI衍生BiFeO_(3)@Fe_(2)O_(3)及其增强光催化性能  

Decorated BiOI on MIL-101(Fe)@BiOI derived BiFeO_(3)@Fe_(2)O_(3)for improved photocatalytic performance

作　　者：朱禹 罗伟奇 候冬梅 李楚文 段正周 许沁芸 高贵成 汤继俊[2] ZHU Yu;LUO Wei-Qi;HOU Dong-Mei;LI Chu-Wen;DUAN Zheng-Zhou;XU Qin-Yun;GAO Gui-Cheng;TANG Ji-Jun(Jiangsu Key Laboratory of Chiral Pharmaceuticals Biomanufacturing,College of Pharmacy and Chemistry&Chemical Engineering,Taizhou University,Taizhou,Jiangsu 225300,China;School of Materials Science and Engineering,Jiangsu University of Science and Technology,Zhenjiang,Jiangsu 212003,China)

机构地区：[1]泰州学院医药与化学化工学院,江苏省手性医药化学品生物制造重点建设实验室,泰州225300 [2]江苏科技大学材料科学与工程学院,镇江212003

出　　处：《无机化学学报》2023年第7期1415-1428,共14页Chinese Journal of Inorganic Chemistry

基　　金：江苏省自然科学基金青年项目(No.BK20190245)、江苏高校“青蓝工程”项目、泰州学院高层次人才基金(No.QD2016006)和泰州市科技支撑计划(农业)项目(No.TN202122)资助。

摘　　要：采用溶剂热法合成了MIL-101(Fe)@BiOI复合材料,然后将其煅烧制备光催化性能增强的BiFeO_(3)@Fe_(2)O_(3)@BiOI三元复合材料。采用X射线衍射、扫描电镜、紫外可见漫反射吸收光谱等测试手段表征复合材料的组成、结构、形貌。将复合材料用于可见光照射下光催化降解四环素,研究复合比例(质量比)、pH和浓度对光催化性能的影响。电化学阻抗谱、光电流响应和莫特-肖特基曲线测试分析表明三元复合材料BiFeO_(3)@Fe_(2)O_(3)@BiOI表现出更强的光电流响应和更低的电荷转移电阻。当BiFeO_(3)、Fe_(2)O_(3)和BiOI三者理论质量比为1:1:1时,中性条件下降解活性最高,四环素去除率为81%。Herein,MIL-101(Fe)@BiOI composites have been synthesized by hydrothermal method and then calcined to get BiFeO_(3)@Fe_(2)O_(3)@BiOI composites with high photocatalytic capacity.The composition,structure,and morphology of the composites were characterized by X-ray diffraction,scanning electron microscopy,and UV-Vis diffuse reflection absorption spectroscopy.The effects of composite ratio(mass ratio),pH,and concentration on photocatalytic performance were studied.Electrochemical impedance spectroscopy,photocurrent response,and Mott-Schottky curve test and analysis show that BiFeO_(3)@Fe_(2)O_(3)@BiOI shows stronger photocurrent response and lower charge transfer resistance.The degradation activity of BiFeO_(3)@Fe_(2)O_(3)@BiOI showed the highest in neutral conditions with a removal efficiency of 81%when the mass ratio was 1∶1∶1.

关 键 词：金属有机骨架 煅烧 光催化 抗生素 

分 类 号：O614.811[理学—无机化学] O614.532[理学—化学]