Eosin Removal by Cetyl Trimethylammonium-Cloisites: Influence of the Surfactant Solution Type and Regeneration Properties.

ABSTRACT: The effect of the counteranion of hexadecyltrimethylammonium salts on the physico-chemical properties of organoclays was investigated, using a selected natural clay mineral with a cation exchange capacity of 95 meq/100 g. The uptake amount of C₁₆ cations was dependent on the hexadecyltrimethylammonium (C₁₆) salt solution used, the organoclay prepared from C₁₆Br salt solution exhibited a value of 1. 05 mmole/g higher than those prepared from C₁₆Cl and C₁₆OH salt solutions. The basal spacing of these organoclays was in the range of 1.81 nm to 2.10 nm, indicating a similar orientation of the intercalated surfactants, and could indicated that the excess amount of surfactants, above the cation exchange capacity of 0.95 meq/g could be adsorb

SUBMITTER: Kooli F 

PROVIDER: S-EPMC6720785 | biostudies-literature | 2019 Aug

REPOSITORIES: biostudies-literature