环境工程学报2012,Vol.6Issue(10):3378-3382,5.
β-FeOOH/蜂窝陶瓷催化臭氧化高效去除饮用水中有机污染物
Efficient removal of organic pollutants in drinkingwater by catalytic ozonation catalyst β-FeOOH/ceramic honeycomb
摘要
Abstract
β-FeOOH/ceramic honeycomb(β-FeOOH/CH) was prepared by the following procedure: ceramic honeycomb was washcoated by Al2O3 via sol-gel method with boehmite as precursor,which was further modified by loading β-FeOOH(as active species).In comparison with ozonation process,the catalyst exhibited a higher catalytic activity for the degradation of 2,4-dichlorophenoxyacetic acid(2,4-D) in a semi-continuous laboratory reactor.At a reaction time of 20 min,2,4-D was completely destroyed and about 80% of the TOC was removed under the optimum conditions.Moreover,the effects of water flow speed and the initial concentration of organic pollutants et al.on the catalytic ozonation efficiency were also studied in detail.The results indicated that ozone could be efficiently decomposed over β-FeOOH/CH,leading to the highly efficient removal of organic pollutants such as atrazine and epichlorohydrin.Furthermore,β-FeOOH/CH had an excellent long-term stability and no obviously deactivation in 30 successive cycles.Therefore,β-FeOOH/CH has a promising application in drinking water treatment.关键词
蜂窝陶瓷(CH)/催化臭氧化/有机污染物/去除Key words
ceramic honeycomb(CH)/catalytic ozonation/organic pollutant/removal分类
资源环境引用本文复制引用
胡建朝,聂玉伦,胡春,郑红..β-FeOOH/蜂窝陶瓷催化臭氧化高效去除饮用水中有机污染物[J].环境工程学报,2012,6(10):3378-3382,5.基金项目
国家高技术研究发展计划(863)项目 ()
国家自然科学基金资助项目 ()