Catalytic activity of cerium-doped Ru/Al_(2)O_(3) during ozonation of dimethyl phthalate  

作　　者：Yunrui ZHOU Wanpeng ZHU Xun CHEN 

机构地区：[1]Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China [2]Department of Chemical and Environmental Engineering,China University of Mining and Technology(Beijing),Beijing 100083,China

出　　处：《Frontiers of Environmental Science & Engineering》2008年第3期354-357,共4页环境科学与工程前沿（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant No.50238020).

摘　　要：In this paper,factors influencing themineralization of dimethyl phthalate(DMP)during catalytic ozonation with a cerium-doped Ru/Al_(2)O_(3) catalyst were studied.The catalytic contribution was calculated through the results of a comparison experiment.It showed that doping cerium significantly enhanced catalytic activity.The total organic carbon(TOC)removal over the doped catalyst at 100 min reached 75.1%,61.3% using Ru/Al_(2)O_(3) catalyst and only 14.0% using ozone alone.Catalytic activity reached the maximum when 0.2% of ruthenium and 1.0% of cerium were simultaneously loaded onto Al_(2)O_(3) support.Results of experiments on oxidation by ozone alone,adsorption of the catalyst,Ce ion’s and heterogeneous catalytic ozonation confirmed that the contribution of heterogeneous catalytic ozonation was about 50%,which showed the obvious effect of Ru-Ce/Al_(2)O_(3) on catalytic activity.

关 键 词：catalytic oxidation Ru-Ce/Al_(2)O_(3) OZONATION doped cerium ozone 

分 类 号：O64[理学—物理化学]