Adsorption of styrene on ammonia-treated activated carbon fibers

被引：0

作者：

Pan, Hong-Yan ^{[1
]}

Li, Zhong ^{[1
]}

Xia, Qi-Bin ^{[1
]}

Xi, Hong-Xia ^{[1
]}

Li, Jing ^{[1
]}

机构：

[1] Key Lab. of Enhanced Heat Transfer and Energy Conservation, College of Chemical Engineering and Energy, South China University of Technology, Guangzhou 510640, China

来源：

Gongneng Cailiao/Journal of Functional Materials | 2008年 / 39卷 / 02期

关键词：

Activated carbon - Adsorption - Ammonia - Pore structure - Styrene - Surface properties;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this work, activated carbon fibers (ACFs) were respectively modified using different concentration ammonia aqueous solution, and the textural properties and the surface oxygen content as well as the surface acidities of the modified ACFs studied were determined by nitrogen adsorption, elemental analysis and Boehm titration methods. The breakthrough curves of styrene in fixed beds packed separately with modified ACFs were determined. The effects of the pore structure and surface properties of modified ACFs on its adsorption capacities of styrene were discussed. Results showed that in comparison with original ACF, the modified ACFs had more surface basic groups, pore volume and higher surface area so that their adsorption capacities of styrene were improved. The ACF modified with 6 mol/L ammonia aqueous solution had more micropore volume and higher surface area than the other modified ACFs, and thus its adsorption capacity of styrene was the highest.

引用

页码：324 / 327