2010全国生物材料大会论文集之 (1292).pdf

Study on Electro-Oxidation of Phenol by Rare Earth
Gd Doping SnO2/Sb Coating Anode

Wang Jing, Luo Xin, Sun Chunfeng, Zhou Haohui, Wu Fachao
Department of Environmental Engineering
North China Institute of Science and Technology
Beijing, China
wangjing88583137@


Abstract—SnCl4·5H2O, Sb2O3, and Gd(NO3)3 were used as the wastewater was used with concentration of 200 mg/L. Na2SO4
precursors to prepare the film of rare earth Gd doping SnO2/Sb was added to serve as supporting electrolyte. The pH was
coating anode by coprecipitation method. The phenolic adjusted with mol/L of HCl and NaOH aqueous solutions.
wasterwater was treated by the Gd doping SnO2/Sb coating The phenol concentration was determined every , and the
anode. The factors affecting the degradation rate of phenol were concentration was determined by 4-AAP spectrophotometric
examined, such as the electrolyte concentration, current density, method. The phenol degradation efficiency is calculated as the
solution pH , solution temperature and doping Gd. The ratio between the removal amount and the initial amount of
experimental results show that the rare earth Gd doping SnO2/Sb phenol.
coating anode has good effect on the degradation of phenol.
Under the conditions of Na2SO4 concentration , current To study the degradation performance, the phenol solutions
dens