Titanium dioxide-loaded granule active carbon for phenol electro-oxidation using three-dimensional electrodes reactor
Titanium dioxide-loaded granule active carbon was prepared bv sol-gel process.After this scanning electron microscope (SEM) and X-ray diffraction (XRD) were employed to evaluate its morphology and electrochemical properties.The mechanism of TiO2-GAC in the improvement phenol electrooxidation was translated in the increase of surface contact resisitance, decrease of adsorption and contribution to actived eletron.Also a comparative study between granule active carbon (GAC) and titanium dioxide-loaded granule active carbon (TiO2-GAC) was conducted in a packed-bed electrode reactor.Our experimental results showed that their COD removal efficiency under current density 30A·m-2,30mg·L-1 Na2SO4 and phenol concentration 600mg·L-1 in 240mins were 81.4% and 73.8% respectively.Cyclic voltammograms proved that TiO2 loaded GAC had a higher voltammetric charge 6,69mc.cm-2 than ungroomed GAC 6.07 mc·cm-2.TiO2 loaded GAC has a better property as electrochemical filling than GAC.
Peng Li LiZhang Wang YueMin Zhao Qian Yan Juan Tian Bo Zhang
School of Environment and Spatial Informatics, China University of Mining and Technology School of Chemical Engineering and Technology, China University of Mining and Technology, Xuzhou, 22
国际会议
北京
英文
301-302
2013-11-07（万方平台首次上网日期，不代表论文的发表时间）