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2008年 第2卷 第3期

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《环境科学与工程前沿（英文）》 >> 2008年 第2卷 第3期 doi: 10.1007/s11783-008-0059-z

Catalytic activity of cerium-doped Ru/AlO during ozonation of dimethyl phthalate

1.Department of Environmental Science and Engineering, Tsinghua University; 2.Department of Chemical and Environmental Engineering, China University of Mining and Technology (Beijing)

发布日期： 2008-09-05
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In this paper, factors influencing the mineralization of dimethyl phthalate (DMP) during catalytic ozonation with a cerium-doped Ru/AlO 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/AlO 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 AlO 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/AlO on catalytic activity.

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