摘要
钼酸铋在水体污染物降解方面具有广阔的应用前景,但单一钼酸铋的光生电子-空穴复合快,光催化效率不高。因此采用一锅煮水热法制备不同比例的Bi_(2)MoO_(6)/BiOI复合材料,利用XRD、SEM、TEM、XPS和DRS对其微观形貌、物相组成等特性进行表征,在可见光照射下评价其降解盐酸四环素(TC)的活性。结果表明,1∶5Bi_(2)MoO_(6)/BiOI降解效率达到最佳,在100 min内对盐酸四环素的降解率达到81.0%,且重复4次降解后仍保持较高的催化活性,原因是Bi_(2)MoO_(6)/BiOI复合材料生成超氧自由基,加速了光生电子-空穴对的快速分离。该材料在环境治理和保护方面具有潜在的应用价值。
Bismuth molybdate has broad application prospects in the degradation of water pollutants,but the photogenerated electron-hole recombination of single bismuth molybdate is fast and the photocatalytic efficiency is not high.Therefore,Bi_(2)MoO_(6)/BiOI composites in different proportions were prepared by the one-pot hydrothermal method.Their microscopic morphology,phase composition and other properties were characterized by XRD,SEM,TEM,XPS and DRS.The activity of their degradation of tetracycline hydrochloride(TC)was evaluated under visible light irradiation.The results show that the 1∶5Bi_(2)MoO_(6)/BiOI degradation efficiency reaches the optimal level,with the degradation rate of tetracycline hydrochloride reaching 81.0%within 100 minutes.Moreover,after four repeated degradations,it still maintains high catalytic activity.The reason is that the Bi_(2)MoO_(6)/BiOI composite material generates superoxide radicals,which accelerate the rapid separation of photogenerated electron-hole pairs.This material has potential application value in environmental governance and protection.
作者
梁诗婷
易均辉
陈展鸿
肖小静
张紫科
林泽波
黄子颖
徐进
LIANG Shiting;YI Junhui;CHEN Zhanhong;XIAO Xiaojing;ZHANG Zike;LIN Zebo;HUANG Ziying;XU Jin(School of Chemical Engineering,Guangdong University of Petrochemical Technology,Maoming 525000,Guangdong,China)
出处
《工业催化》
2025年第8期41-49,共9页
Industrial Catalysis
基金
广东省教育厅重点专项项目(2023ZDZX4034)
茂名绿色化工研究院“扬帆计划”创新项目(MMGCIRI-2022YFJH-Y-007)
广东石油化工学院大学生大创项目(24B094、24A025和24B100)。
