| 活性炭表面改性及其对Cr(Ⅵ)吸附性能的研究 |
| |
| 引用本文： | 李湘洲,肖建军. 活性炭表面改性及其对Cr(Ⅵ)吸附性能的研究[J]. 化工进展, 2004, 23(3): 295-296 |
| |
| 作者姓名： | 李湘洲 肖建军 |
| |
| 作者单位： | 中南林学院工业学院,长沙,410004;中南林学院工业学院,长沙,410004 |
| |
| 基金项目： | 湖南省教育厅科研课题 ( 0 2C5 43 )，中南林学院青年科研基金重点项目 ( 0 2 0 484) |
| |
| 摘 要： | 分别用HNO3、H2SO4以及HNO3加乙酸铜溶液对活性炭进行了表面改性处理，测定了它们的表面化学性能，研究了改性活性炭对Cr(VI)吸附性能的影响。实验结果表明：通过上述改性，活性炭表面官能团数量发生了显著改变，特别是羧基增加较多；通过改性后的活性炭对Cr(Ⅵ)吸附性能有所提高。
|
| 关 键 词： | 活性炭 表面改性 官能团 Cr(Ⅵ) 吸附 |
| 文章编号： | 1000-6613(2004)03-0295-02 |
| 修稿时间： | 2003-07-22 |
Surface Characteristics of Modified Activated Carbon and its Adsorption Performance on Heavy Metal Hexavalent Chromium |
| |
| Li Xiangzhou,Xiao Jianjun. Surface Characteristics of Modified Activated Carbon and its Adsorption Performance on Heavy Metal Hexavalent Chromium[J]. Chemical Industry and Engineering Progress, 2004, 23(3): 295-296 |
| |
| Authors: | Li Xiangzhou Xiao Jianjun |
| |
| Abstract: | China-made activated carbon's oxidative treatment with nitric acid, sulfuric acid, nitric acid with cupric acetate was carried out. The influence of surface modification on physical and chemical properties of activated carbons and the adsorption performance is demonstrated. The results show that the surface chemical properties of activated carbons have significant influence on its adsorption performance,and the acid surface functional groups of activated carbon increases considerably after oxidation with different acids. Therefore, the adsorption performance of modified carbon touards heavy metal ions like hexavalent chromium Cr 6+ increases considerably. |
| |
| Keywords: | activated carbon surface modification functional groups hexavalent chromium adsorption |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
