摘要
研究了Fe(Ⅲ)/柠檬酸体系光降解诺氟沙星。结果表明,光催化Fe(Ⅲ)/柠檬酸可快速降解诺氟沙星,Fe(Ⅲ)/柠檬酸比增加可提高诺氟沙星降解率和HO·形成量,Fe(Ⅲ)与柠檬酸形成络合物存在一定比例性。pH为6时,诺氟沙星降解率和HO·形成量较高。诺氟沙星浓度降低,其降解率增加,且降解过程符合准一级动力学。
Photodegradation of norfloxacin catalyzed by Fe（Ⅲ） and citric acid was studied. Results indicated that degradation rate of norfloxacin was markedly enhanced when Fe（Ⅲ） and citric acid coexisted, and the increase in Fe（Ⅲ）/citric acid ratio could enhance degradation rate of norfloxacin and formation amount of hydroxyl radical,however,formation of Fe（Ⅲ）-citric acid complexes had a appropriate proportion. Degradation rate of norfloxacin and formation amount of hydroxyl radical were higher at pH 6,degradation rate of low initial concentration of norfloxacin rapidly increased,and the pseudo-first order kinetic described well degradation process of norfloxacin.
出处
《应用化工》
CAS
CSCD
2014年第1期20-23,27,共5页
Applied Chemical Industry
基金
中央高校基本科研业务费专项资金资助(JUSRP11205)
