Catalytic activity of cerium-doped Ru/Al2O3 during ozonation of dimethyl phthalate

In this paper, factors influencing the mineralization 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 enh...

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Bibliographic Details
Published inFrontiers of environmental science & engineering Vol. 2; no. 3; pp. 354 - 357
Main Authors Zhou, Yunrui, Zhu, Wanpeng, Chen, Xun
Format Journal Article
LanguageEnglish
Published Heidelberg SP Higher Education Press 01.09.2008
Springer Nature B.V
Subjects
Aluminum oxide
Catalysts
Catalytic activity
Cerium
Earth and Environmental Science
Environment
Mineralization
Organic carbon
Oxidation
Ozonation
Ozone
Phthalates
Research Article
Ruthenium
Total organic carbon
ozonation
Ru-Ce/Al
doped cerium
catalytic oxidation
ozone
O
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Summary:In this paper, factors influencing the mineralization 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.
ISSN:1673-7415
2095-2201
1673-7520
2095-221X
DOI:10.1007/s11783-008-0059-z