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Journal of Zhejiang University SCIENCE A 2004 Vol.5 No.12 P.1543~1547

http://doi.org/10.1631/jzus.2004.1543


The mechanism of Fe (III)-catalyzed ozonation of phenol


Author(s):  ZHU Xiang-feng, XU Xin-hua

Affiliation(s):  Department of Environmental Engineering, Zhejiang University, Hangzhou 310027, China

Corresponding email(s):   hanota@sohu.com

Key Words:  Catalytic ozonation, Phenol, Oxalic acid, Fe (III), Mechanism


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ZHU Xiang-feng, XU Xin-hua. The mechanism of Fe (III)-catalyzed ozonation of phenol[J]. Journal of Zhejiang University Science A, 2004, 5(12): 1543~1547.

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author="ZHU Xiang-feng, XU Xin-hua",
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T1 - The mechanism of Fe (III)-catalyzed ozonation of phenol
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DOI - 10.1631/jzus.2004.1543


Abstract: 
fe (III)-catalyzed ozonation yielded better degradation rate and extent of COD (Chemical Oxygen Demand) or oxalic acid as compared with oxidation by ozone alone. Two parameters with strong effects on the efficiency of ozonation are pH of the solution and the catalyst (Fe3+) dosage. The existence of a critical pH value determining the catalysis of fe (III) in acid conditions was observed in phenol and oxalic acid systems. The best efficiency of catalysis was obtained at a moderate concentration of the catalyst. A reasonable mechanism of fe (III)-catalyzed ozonation of phenol was obtained based on the results and literature.

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Reference

[1] Abe, K., Tanaka, K., 1997. Fe3+ and UV-enhanced ozonation of chlorophenolic compounds in aqueous medium. Chemosphere, 35(12):2837-2847.

[2] Arslan, I., 2001. Treatability of a simulated disperse dye-bath by ferrous iron coagulation, ozonation, and ferrous iron-catalyzed ozonation. Journal of Hazardous Materials, 85(3):229-241.

[3] Bader, H., Hoigne, J., 1981. Determination of ozone in water by the indigo method. Water Res, 15:449-456.

[4] Colin, C., Robble, B., 1999. An investigation of catalytic ozonation for the oxidation of halocarbons in drinking water preparation. Wat. Res., 33(18):3695-3700.

[5] Hoigne, J., Bader, H., 1976. The role of hydroxyl radical reactions in ozonation process in aqueous solutions. Water Res, 10:377-386.

[6] Hoigne, J., Bader, H., 1983. Rate constants of reactions of ozone with organic and inorganic compounds in waterI. Water Res, 17:173-183.

[7] Legube, B., Karpel, V., Leitner, N., 1999. Catalytic ozonation: a promising advanced oxidation technology for water treatment. Catalysis Today, 53(1):61-72.

[8] Villasenor, J., Reyes, P., Pecchi., G., 2002. Catalytic and photocatalytic ozonation of phenol on MnO2 supported catalysts. Catalysis Today, 76:121-131.

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srm01@huzhou teachers college<srm01@126.com>

2011-03-04 11:44:46

A good paper!

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