Photoelectrocatalytic degradation of methyl orange in TiO2 suspension-Ti electrode system
Photoelectrochemical (PEC) degradation and electrodegradation (ED) of methyl orange were investigated aqueous NaCl and Na2SO4 solutions. Photocatalytic degradation(PCD) was also performed in TiO2(P25) suspension under UV-irradiation for comparison. Electrodegradation efficiencies showed enhanced decolorization performance at higher concentrations of electrolyte solutions and applied potentials. There is synergetic effect between electrolysis and photocatalysis treatments. Photocatalytic degradation process alone could result in 50.7% decolorization of methyl orange solution after 60 minutes of irradiation while the degradation rate were 82.1% in 0.5 mol/l Na2SO4 solution and 98.9% in 0.5M NaCl solution when 10 V bias was applied photoelectrochemical degradation processes.
Wenjie Zhang Yang Yu Xiaoxi Wang
School of Environmental and Chemical Engineering,Shenyang Ligong University Shenyang 110159, China
国际会议
成都
英文
1-4
2010-06-18(万方平台首次上网日期,不代表论文的发表时间)