中南大学学报（自然科学版）Issue(1)：338-343,6.DOI:10.11817/j.issn.1672-7207.2016.01.046
硫酸根自由基降解氟喹诺酮抗生素动力学模型构建
Establishment and analysis of kinetic models for degradation of fluoroquinolones antibiotics by sulfate radical
摘要
Abstract
To solve the pollution issue caused by the pervasive residual of fluoroquinolones antibiotics, thermally activated persulfate was used to degrade three typical fluoroquinolones (i.e., ciprofloxacin, norfloxacin, enrofloxacin). The effect of pH on the degradation was investigated and kinetic oxidation models for free radicals were established. By coupling oxidation models with experimental results, the concentration of free radicals and the pseudo-second-order reaction constants for targets were calculated. The results show that the established high ordered equations can well describe the microreaction kinetics and pH has a significant effect on the concentrations of −⋅ 4SO and ·HO. Meanwhile, the pseudo-second-order reaction constants with −⋅ 4SO are 6.96×107±2.31,2.52×107±4.47 and 8.55×107±1.98 L/(mol∙s) for ciprofloxacin, norfloxacin and enrofloxacin, respectively.关键词
热激活/硫酸根自由基/氟喹诺酮抗生素/动力学模型/反应常数Key words
thermal activation/sulfate radical/fluoroquinolones/kinetic model/reaction constants分类
资源环境引用本文复制引用
郭洪光,高乃云,张永丽,付垚,何波辉..硫酸根自由基降解氟喹诺酮抗生素动力学模型构建[J].中南大学学报（自然科学版）,2016,(1):338-343,6.基金项目
国家科技重大专项(2012ZX07403-001)；四川省环保科技计划项目(2013HB08)；中央高校基本科研业务费资助项目(2082604184026)(Project(2012ZX07403-001) supported by the National Major Project of Science&Technology of China （2012ZX07403-001）
Project(2013HB08) supported by Sichuan Provincial Environment Protection Office （2013HB08）
Project(2082604184026) supported by the Fundamental Research Funds for the Central Universities) （2082604184026）
