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