Catalytic ozonation for degradation of 2, 4, 6-trichloroanisole in drinking water in the presence of gamma-AlOOH.
Results show that catalytic ozonation with gamma-AlOOH can substantially enhance the removal effectiveness of 2, 4, 6-trichloroanisole (TCA) in drinking water. Scavenging of radicals tests reveals that the improved 2, 4, 6-trichloroanisole degradation is due to the enhanced generation of hydroxyl radicals. The uncharged surface hydroxyl groups on gamma-AlOOH in water can induce aqueous ozone decomposition to generate hydroxyl radicals. The catalytic activity of gamma-AlOOH decreased as thermal treatment temperature increased.
Qi
Fei
F
College of Environmental Science and Engineering, Beijing Forestry University, P.O. Box 60, #35 Qinghua Dong Road, Haidian District, Beijing City 100083, P.R. China. qifei_hit@yahoo.com.cn
Xu
Bingbing
B
Chen
Zhonglin
Z
Ma
Jun
J
D017607:Aluminum Compounds / Q000737:chemistry*; D000840:Anisoles / Q000737:chemistry*; D002384:Catalysis; D010126:Ozone / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*
D017607:Aluminum Compounds; D000840:Anisoles; D014874:Water Pollutants, Chemical; C110228:2,4,6-trichloroanisole; D010126:Ozone