Photoelectrochemical Degradation of Procion Red MX-5B in TiO2 Suspension Using Na2SO4 as Electrolyte

摘要：

Photoelectrochemical (PEC) degradation of Procion Red MX-5B was investigated in aqueous Na2SO4 solution. Higher electrolyte concentration resulted in higher current between the electrodes due to increased conductivities of the solutions. UV irradiation could obviously raise the current, and the differences became larger in accordance with the increase of the applied potentials. The pH declined in the first 30 minutes and became constant for the prolonged reaction time during both PEC degradation and photocatalytic oxidation. The applied potential could only slightly improve dye decolorization. Although a potential of 8 V was applied to 0.3 mol/l Na2SO4 solution, TOC removal efficiency of PEC degradation was almost as the same as that of photocatalytic oxidation.

关键词： Photoelectrochemical degradation Procion MX-5B TiO2 Na2SO4

作者: Wenjie Zhang Ruyuan Li Jiawei Bai

作者单位: School of Environmental and Chemical Engineering, Shenyang Ligong University, Shenyang 110159 China

会议类型: 国际会议

会议名称: 2010 International Conference on Advanced Mechanical Engineering(2010年先进机械工程国际学术会议 AME 2010)

会议地点: 洛阳

会议语种:英文

页码: 637-640

在线出版日期: 2010-09-04（万方平台首次上网日期，不代表论文的发表时间）