The effect of surface acidity upon the adsorption capacities of activated carbons

被引：17

作者：

Guzel, F

机构：

[1] Department of Chemistry, Faculty of Sciences, Dicle University, Diyarbakir

来源：

SEPARATION SCIENCE AND TECHNOLOGY | 1996年 / 31卷 / 02期

关键词：

activated carbon; dyestuff adsorption; surface acidity;

D O I：

10.1080/01496399608000696

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this study the effects of the surface acidity of adsorbents on adsorption from solution are investigated. For this purpose, methylene blue (cationic) and metanil yellow (anionic) adsorbates, which have opposite ionic characters, are used. At 298 K, the values of surface acidity indicate that methylene blue molecules occur on the surface at a greater probability than those of metanil yellow. That is, metanil yellow molecules are repulsed from the surface and methylene blue molecules are attracted to the surface.

引用

页码：283 / 290

页数：8

共 6 条

[1]

[Anonymous], SURFACE AREA DETERMI

[2] CHARACTERIZATION OF PHYSICAL ADSORPTION SYSTEMS .3. THE SEPARATE EFFECTS OF PORE SIZE AND SURFACE ACIDITY UPON THE ADSORBENT CAPACITIES OF ACTIVATED CARBONS [J].