期刊
CARBON
卷 49, 期 14, 页码 4739-4744出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.06.080
关键词
-
Active carbon spheres were prepared by chemical activation using acid-pretreated resin beads, composed of sulfonated polystyrene divinylbenzene. Carbonization and activation were carried out simultaneously at various temperature ranges from 200 to 900 degrees C for 4 h, under gentle fluidization conditions facilitated with N-2 flow. Effect of temperature on carbon burn-off of precursor and surface area of active carbon spheres was also studied. Prepared active carbon spheres were characterized using scanning electron microscope, surface area analyzer, thermo gravimetric analyzer, tensile tester, and CHNS instrument. Active carbon spheres exhibited high surface area 976 m(2)/g and pore volume 0.68 ml/g. They were also evaluated for total surface acidity of 1133 meq/100 g and surface basicity of 275.3 meq/100 g. Active carbon spheres showed their applicability for the removal of CN- (50%) and for various heavy metal ions such as Pb(II), Mn(II), Hg(II), Cu(II), Cd(II), Zn(II), and Ni(II) (50-90%) from their contaminated solution. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据