H_3PO_4活化制备加拿大一枝黄花活性炭及其性能表征.pdf

18 1 安 全与 环境 工 程 Vol. 18 No. 1 201 1 1 Safety and Environmental Engineering Jan. 2011 H PO 3 4 孙利红, 杨再福, 吴馨娜 ( 东华大学环境科学与工程学院, 上海201620) : (Solidago Canadensis) , , , , : 40% 13, 400 60 min, 2 273. 2 mg/ g1 210. 89 mg/ g60. 83% 1 677. 910 m / g, , XRD ( FTIR) : ; ; ( H PO ) ; ; 3 4 :X703 :A : 16711 6( 2011) 0100130 Preparation and Characterization of Activated Carbon from Sol idago Canadensis by H3 PO4 Activation SUN Lihong, YANG Zaifu, WU Xinna (Dep artment of Environmental Science and Engineering, Donghua University , Shanghai 201620, China) Abstract: T he highly efficient activated carbon w as prepared from Solidago Canadensis , an invasive alien w eed, by phosphoric acid activation according to orthogonal test method. T he effects of operation parame ters such as impregnation ratio( A) , phosphoric acid concentration( B) , activation temperature( C) and time ( D) on the adsorption properties and yield of activated carbons w ere evaluated. It w as indicated that the op timum conditions w ere as follow s: impregnation ratio w as 1/ 3( g/ ml) , phosphoric acid concentration w as 40% , activation temperature w as 400 , and activation time w as 60 min. T he amount of methylene blue adsorption, the iodine number, the activation yield and the surface area of activated carbon prepared under 2 the optimum condition w ere 273. 2mg/ g, 1210. 89mg/ g, 60. 83% and 677. 910 m / g, respectively . T G w as used to analyze the carbonation process of Solidag oCanadensis before and