西安理工大学学报2016，Vol.32Issue(3)：364-369,378,7.DOI:10.19322/j.cnki.issn.1006-4710.2016.03.020
Co2＋催化超声／H2 O2降解环丙沙星
Degradation of ciprofloxacin aqueous solution by combined Co2+ and US/H2 O2 system
摘要
Abstract
Chemistry of Education,School of Chemistry and Material Science,Northwest University,Xi’an 710069,China) The aim of this study was to determine the effectiveness of catalysis of Co2+ based on US/H2 O2 system to remove ciprofloxacin.Some main influenceing factors such as Co2+ ,H 2 O2 concentration,reaction temperature and initial pH were investigated.Results showed that,Co2+had a significant synergetic effect on oxidation of ciprofloxacin,which is followed pseudo-first or-der kinetics.The degradation rate of ciprofloxacin increased with the increase of H2 O2 and Co2+concentration within the 4.0~ 32.0 mmol/L and 25.8 ~ 96.8 mmol/L range respectively;the degradation rate of target compound increased with the reaction temperature heating up at 15 ℃~45 ℃;When the initial pH value is 3.0,the best catalytic effect of ciprofloxacin was gained.Inhi-bition experiments indicating that the degradation of ciprofloxacin by Co2+ catalyze was mainly oxidizing by ·OH.According to HPLC spectrum,three kinds of products are mainly generated in the process of Co2+/US/H2 O2 degradation of ciprofloxacin,which was identified through two ways.关键词
Co2+/超声/H2 O2/环丙沙星/羟基自由基/一级动力学Key words
Co2+/US/H2 O2/ciprofloxacin/hydroxyl radical/first-order kinetics分类
资源环境引用本文复制引用
程小莉,魏红,李文英,李克斌..Co2＋催化超声／H2 O2降解环丙沙星[J].西安理工大学学报,2016,32(3):364-369,378,7.基金项目
国家自然科学基金资助项目（51409211）；陕西省教育厅科学研究计划资助项目（2013JK0881）；陕西省教育厅重点实验室资助项目（13JS067）；陕西省水利科技资助项目（2013slkj-07）；西安理工大学创新基金资助项目（106211302）；环境工程国家重点学科培育学科资助项目 （）
