Removal of Refractory Organic Orange Ⅳ by Fe-Mn/GAC in the Presence of H2O2
A new heterogeneous catalyst Fe-Mn/GAC (iron and manganese were loaded into activated carbon particles) was prepared,which had a better catalytic reactivity to decompose H2O2 compared with Fe/GAC and Mn/GAC.The removal rate of Orange Ⅳ increased more than 10% with this catalyst compared with Fe/GAC and Mn/GAC.The effect of the initial concentration of H2O2,the initial dye concentration,the initial catalyst concentration,the initial pH and temperature on the reaction rate constant were also studied.The activated energy for Fe-Mn/GAC catalyzed oxidation of the dye was determined to be 66.16KJ/mol.Reuse of catalyst did not decrease the removal rate of Orange Ⅳ.The tert-butanol experiment indicated that there were not only hydroxyl radicals but also other active species in the system.
Fe-Mn/GAC hydroxyl radicals Orange Ⅳ
Zhang Yingjie Liao Xia Xu Shufen Li Dapeng Hu Qing
School of Chemical Engineering,Northeast Dianli University,P.O.Box 81,Jilin city 132012,China;School School of Chemical Engineering,Northeast Dianli University,P.O.Box 81,Jilin city 132012,China Katie green energy development limited company of Linli County,Changde city 415200,China
国际会议
太原
英文
490-494
2012-01-13（万方平台首次上网日期，不代表论文的发表时间）