Applied Chemistry, Vol.6, No.1, 380-383, May, 2002
광촉매의 구조 및 수용액 pH가 TCE광분해 활성에 미치는 영향
The Effect of TiO2 Structure and pH in Aqueous Solution on Trichloroethylene(TCE) Photodegradation
In this study, surface of various types of TiO2 were characterized by SEM. The effects of H2O2 and pH in trichloroethylene(TCE) aqueous solution on TCE photodegradation was studied. SEM results revealed that the particle size of Degussa P-25 was smaller than those of both KIER TiO2 and Aldrich TiO2. Photocatalytic activity was decreased with addition of 0.1wt% H2O2 except KIER TiO2. The optimum activity obtained when the pH of aqeous solution was 9 with Degussa P-25. And photocatalytic activity of Degussa P-25 and M-TiO2 was almost same when the aqueous solution pH was 9.