铋银氧化物紫外光下催化降解左氧氟沙星的研究  

Study on catalytic degradation of levofloxacin by bismuth silver oxide in ultraviolet light

作　　者：林宴林 陈伟标 牛显春[2] LIN Yan-lin;CHEN Wei-biao;NIU Xian-chun(Maoming Safety Production Association,Maoming 525000,China;Guangdong University of Petrochemical Technology,Maoming 525000,China)

机构地区：[1]茂名市安全生产协会,广东茂名525000 [2]广东石油化工学院,广东茂名525000

出　　处：《化学工程师》2021年第8期73-76,共4页Chemical Engineer

基　　金：广东省应用型科技研发专项资金项目:“基于秸秆资源化利用的农田土壤毒害污染物削减关键技术研发及应用”(2016B020242004)。

摘　　要：本实验采用离子共沉淀法,以NaBiO_(3)和AgNO_(3)为原料制得铋银氧化物,并利用它在紫外光的照射下的催化降解左氧氟沙星溶液,考察了左氧氟沙星浓度、催化剂的摩尔比、催化剂用量、溶液pH值等因素对光催化降解的影响。结果表明:在左氧氟沙星浓度为60mg·L^(-1)、催化剂的摩尔比为1∶1、催化剂用量为1.0g·L^(-1)、溶液pH值为4时降解率最高,达到94.86%;重复使用4次后降解率为89.66%。In this experiment,ion co-precipitation method was used to prepare for the bismuth silver oxide with sodium bismuthate dihydrate and silver nitrate as raw materials,and it was used to catalyze the degradation of levofloxacin solution under the irradiation of ultraviolet light.The effects of levofloxacin concentration,molar ratio of catalyst,catalyst amount and solution pH on photocatalytic degradation were investigated.The results showed that the degradation rate was 94.86%when the concentration of levofloxacin was 60mg·L^(-1),the molar ratio of catalyst was 1∶1,the amount of catalyst was 1.0g·L^(-1),and the solution pH was 4.After 4 times of repeated use,the degradation rate was 89.66%.

关 键 词：左氧氟沙星 铋银氧化物 光催化降解 正交试验 

分 类 号：O643[理学—物理化学] X5[理学—化学]