Electrically enhanced photodegradation of an azodye(Acid Orange II) using a Pt/TiO_2 film electrode irradiating with an UV lamp  

作　　者：SUJing CHENGuo－hua 等 

机构地区：[1]SchoolofEnvirnomentalScienceandTechnology,DalianUniversity,Dalian116012 [2]DepartmentofChemicalEngineering,HongKongUiversityofScienceandTechnology,HongKongSAR

出　　处：《Journal of Environmental Sciences》2003年第1期60-64,共5页环境科学学报（英文版）

基　　金：TheScienceandTechnologyFoundationofLiaoningProvince(No.96 2 118)

摘　　要：A photoelectrochemical process in the degradation of an azodye (Acid Orange II) on a Pt/TiO 2 film electrode was investigated. By using the glass device and the voltage stabilized source of direct current, decolorization ratios higher than 78% were observed during a period of 5h. Comparing this value with the sum of the decolorization ratios obtained by a sole application of electrochemical(lower than 3%) and photochemical(about 23%) procedures, a significant synergic effect between both processes was observed. The effects of adscititious voltage and pH value on the decolorization ratios were obvious while the effect of the amount of aeration was minor.A photoelectrochemical process in the degradation of an azodye (Acid Orange II) on a Pt/TiO 2 film electrode was investigated. By using the glass device and the voltage stabilized source of direct current, decolorization ratios higher than 78% were observed during a period of 5h. Comparing this value with the sum of the decolorization ratios obtained by a sole application of electrochemical(lower than 3%) and photochemical(about 23%) procedures, a significant synergic effect between both processes was observed. The effects of adscititious voltage and pH value on the decolorization ratios were obvious while the effect of the amount of aeration was minor.

关 键 词：photoelectrochemical process Pt/TiO  2 film electrode synergic effect 

分 类 号：X505[环境科学与工程—环境工程] X703.1