西安工程大学学报2026，Vol.40Issue(1)：72-79,8.DOI:10.13338/j.issn.1674-649x.2026.01.009
表面等离子体共振效应增强Ag/Bi2WO6光催化降解氟伐他汀性能
Enhanced photocatalytic degradation of fluvastatin via surface plasmon resonance of Ag/Bi2WO6
摘要
Abstract
As the photocatalyst is excitable by visible light,the low photocatalytic efficiency of bismuth tungstate(Bi2WO6)was confirmed due to the recombination of photogenerated electron-hole pair.The Ag/Bi2WO6composite photocatalyst was prepared using a simple photoreduction method.The morphological structure,crystal structure,optical properties,photoelectric proper-ties,and photocatalytic performance of the composite catalysts with different Ag loading amounts were investigated.The results showed that an absorption peak at 500 nm was observed in the UV-Vis diffuse reflectance spectra of the Ag/Bi2WO6 composite photocatalyst caused by the plasmon resonance effect through Ag loading,which increased the number of photogenerated electron-hole pairs during photocatalytic process.Meanwhile,the Schottky barrier of the interface between Ag and Bi2WO6 promoted the transfer of photogenerated electrons from Bi2WO6 to Ag.Ag an elec-tron acceptor,effectively enhanced the spearation efficiency of photogenerated electron-hole pairs,resulting in a marked increase in photocurrent response and a decrease in electrochemical imped-ance.Under the combined effects of the increased number of photogenerated electron-hole pairs and enhanced separation efficiency,the photocatalytic performance of the Ag/Bi2WO6 composite photocatalyst was significantly improved.When the loading of 1%of Ag,the Ag/Bi2WO6 com-posite photocatalyst exhibited excellent performance.The removal rate of fluvastatin reached 83.59%,representing a 13.75%increase compared to pure Bi2WO6.关键词
钨酸铋/银负载/光催化活性/表面等离子体共振/氟伐他汀降解Key words
bismuth tungstate/silver loading/photocatalytic performance/surface plasmon reso-nance effect/fluvastatin degradation分类
资源环境引用本文复制引用
白文龙,杨冬梅,杨帆宇,刘婷婷..表面等离子体共振效应增强Ag/Bi2WO6光催化降解氟伐他汀性能[J].西安工程大学学报,2026,40(1):72-79,8.基金项目
鄂尔多斯市重点研发计划项目(YF20250257) （YF20250257）
中国博士后科学基金项目(2023MD734204) （2023MD734204）
