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Received March 16, 2016
Accepted April 23, 2016
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Enhancement of photocatalytic disinfection of surface modified rutile TiO2 nanocatalyst
Department of Environmental Engineering, Inha University, 100 Inha-ro, Nam-gu, Incheon 22212, Korea 1Department of Ophthalmology, Hallym University Dongtan Sacred Heart Hospital 7, Keunjaebong-gil, Hwaseong-si, Gyeonggi-do 18450, Korea
Korean Journal of Chemical Engineering, August 2016, 33(8), 2392-2395(4), 10.1007/s11814-016-0117-3
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Abstract
We demonstrate a facile modification of rutile TiO2 and its anti-bacterial activity under solar irradiation. The modification of rutile TiO2 was done by microwave-assisted hydrothermal process with hydrogen peroxide (H2O2) as a solvent. The structural properties were analyzed by using XRD and Raman studies. The modified rutile TiO2 shows no change either crystalline phase or crystalline size. The formation of Ti-OH was observed in Raman study. The TEM analysis shows modification on the surface of rutile TiO2. The photocatalytic disinfection of Escherichia coli (E. coli) under solar irradiation shows double-times better performance by modified rutile TiO2 compared to rutile TiO2. The enhancement of anti-bacterial activity was attributed surface modification and Ti-OH.
