陕西科技大学学报2025，Vol.43Issue(4)：142-151,160,11.
Ag/Bi2O2CO3肖特基结光催化降解环丙沙星性能研究
Study on photocatalytic degradation performance of ciprofloxacin by Ag/Bi2O2CO3 Schottky junction
摘要
Abstract
Bi2O2CO3 has attracted widespread attention in the field of photocatalytic environ-mental purification due to its unique two-dimensional layered structure.However,its practi-cal application is still limited by the low solar energy utilization and high recombination rate of photogenerated carriers.To overcome the above drawbacks,a series of Ag/Bi2O2CO3 com-posite photocatalytic materials is prepared through high-temperature thermal polymerization combined with solvothermal reaction,and the photocatalytic performance is evaluated by de-grading ciprofloxacin.The results show that the photocatalytic activity of Ag/Bi2O2CO3 is re-markably higher than that of the one-component Bi2O2CO3.Under simulated sunlight and near-infrared(NIR)light illumination,the degradation rates of ciprofloxacin by the optimal Ag/Bi2O2CO3 sample can reach 0.0254 min-1 and 0.227 2 h-1,respectively,which are 5.91 and 10.42 times higher than those of Bi2O2CO3.And the corresponding mineralization efficiencies are 69.64％and 62.18％,respectively.The improved photocatalytic activity of Ag/Bi2O2CO3 can be at-tributed to the synergistic action of the localized surface plasmon resonance of Ag and the formation of interfacial Schottky junction,which not only enhances the absorption ability of the material sys-tem for visible and NIR light,but also improves the separation efficiency of photoinduced electron-hole pairs.In addition,the prepared Ag/Bi2O2CO3 possesses excellent structural stability.This study provides a new thought for the construction of highly-active and full-solar-spectrum re-sponsive Bi2O2CO3-based photocatalytic materials.关键词
Ag/Bi2O2CO3/肖特基结/全光谱催化/环丙沙星Key words
Ag/Bi2O2CO3/Schottky junction/full-solar-spectrum catalytic/ciprofloxacin分类
化学化工引用本文复制引用
王敏,辛德华,邱云,章薇,王玉春,刘赵荣,史蒙,石乐,谈国强..Ag/Bi2O2CO3肖特基结光催化降解环丙沙星性能研究[J].陕西科技大学学报,2025,43(4):142-151,160,11.基金项目
国家自然科学基金项目(52172215) （52172215）
山西省基础研究计划项目(202303021222243,202403021222308) （202303021222243,202403021222308）
陕西省自然科学基础研究计划项目(2024JC-YBQN-0536) （2024JC-YBQN-0536）
运城学院院级科研项目(YY-2025012,QZX-2023014,YQ-2023028,YQ-2019004) （YY-2025012,QZX-2023014,YQ-2023028,YQ-2019004）
宜宾学院过程分析与控制四川省高校重点实验室开放基金项目(GCFX2024001) （GCFX2024001）
