| 巯基泥炭吸附重金属离子机理研究 |
| |
| 引用本文： | 周建伟.巯基泥炭吸附重金属离子机理研究[J].化学世界,2002,43(2):59-61. |
| |
| 作者姓名： | 周建伟 |
| |
| 作者单位： | 平原大学化工系,河南新乡,453003 |
| |
| 基金项目： | 河南省科技攻关项目资助课题 ( 991190 10 8) |
| |
| 摘 要： | 从热力学、动力学及 XPS三个方面探讨了巯基泥炭对重金属离子的吸附机理。结果表明 :吸附过程以化学吸附为主。外表面、内表面对 Zn2 + 的吸附率分别为 1 6% ,84% ;Cu2 + 为 1 7% ,83% ;Pb2 +为 5 % ,95 % ;且吸附 Cd2 +完全由内扩散所控制
|
| 关 键 词： | 巯基泥炭 重金属离子 吸附机理 |
| 文章编号： | 0367-6358(2002)02-0059-03 |
Study on Adsorption Mechanism of Metal Ionson Sulfhydryl-peat |
| |
| ZHOU Jian,wei.Study on Adsorption Mechanism of Metal Ionson Sulfhydryl-peat[J].Chemical World,2002,43(2):59-61. |
| |
| Authors: | ZHOU Jian wei |
| |
| Abstract: | The adsorption mechanism of a novel separation adsorbent containing sulfhydryl group was studied in terms of themodynamics and kinetics. The adsorbent is able to absorb heavy metal ions: Zn 2+ 、Pb 2+ 、Cd 2+ and Cu 2+ . Chemisorption is predominant. The adsorption capacities of the external and internal surface are 16% and 84% for Zn 2+ , 17% and 83% for Cu 2+ , 5% and 95% for Pb 2+ , respectively, Whereas the adsorption of Cd 2+ is fully controlled by internal diffusion. |
| |
| Keywords: | sulfydryl peat heavy metal ion adsorption mechanism |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
