环境工程学报2011，Vol.5Issue(10)：2261-2266,6.
纳米CuO在染料中间体间氯甲苯工业废水处理中的应用
Application of CuO nanoparticle in treating wastewater of dye intermediate m-chlorotoluene
摘要
Abstract
CuO nanoparticles were prepared by hydrothermal method and characterized by XRD and TEM.The photo-catalytic degradation of dyeintermediate m-chlorotoluene wastewater,with nanometer CuO as photo-catalyst and high-voltage mercury lamp as the light source,was studied.Main factors for the removal of COD were determined and the order of influence was as the following： radiation time solution pH value the amount of CuO.After studying the influence of factors,including the amounts of CuO,pH value and radiation time,to COD removal rate,the optimum degradation conditions were obtained.When the amount of nanometer CuO was 0.03 g/L,pH= 3.0 and radiation time was 4 h,a COD removal rate of 23.91% could be obtained.Test results indicated that a heterogeneous photo-catalyst system of UV/H2O2/CuO could even more effectively decrease COD in wastewater.When the amount of H2O2 was 5 ‰（v/v）,the COD of wastewater was reduced from 1 201 mg/L to 336 mg/L,and COD removal rate of 72.48% could be obtained.Sunlight/CuO/ H2O2 photo-catalyst system was also used in this study.With CuO amount as 0.03 g/L and H2O2 as 5 ‰（v/v）,pH=3.0 and a radiation time of 4 h,COD removal rate of 55.97% was obtained and could be used in the treatment of wastewater of lower concentration.By comparing GC-MS analysis results of wastewater before and after the treatment,it could be determined that most organic pollutants in the wastewater were effectively degradated.关键词
染料中间体/光催化降解/纳米氧化铜Key words
dyeintermediate mchlorotoluene/photocalytic degradation/nanometer CuO分类
资源环境引用本文复制引用
孟庆华,代娟,朱亦仁,李广超..纳米CuO在染料中间体间氯甲苯工业废水处理中的应用[J].环境工程学报,2011,5(10):2261-2266,6.基金项目
徐州市科技计划项目 （）
江苏省教育厅自然科学基金资助 （）
