Characteristics of phenol and chlorinated phenols sorption onto surfactant-modified bentonite
| Autor: | Zahir Rawajfih, Najwa Nsour |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
chemistry.chemical_classification
Langmuir Inorganic chemistry Quaternary ammonium cation Langmuir adsorption model Sorption complex mixtures Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials symbols.namesake chemistry.chemical_compound Colloid and Surface Chemistry Adsorption chemistry Bentonite symbols Freundlich equation Alkyl |
| Zdroj: | Journal of colloid and interface science. 298(1) |
| ISSN: | 0021-9797 |
| Popis: | Surfactant-modified bentonite was synthesized by replacing adsorbed Na+ with long-chain alkyl quaternary ammonium cation, hexadecyltrimethylammonium bromide (HDTMAB). The sorption isotherms of phenol, p-chlorophenol, and 2,4-dichlorophenol were modeled according to the Langmuir and Freundlich equations. The Langmuir isotherm was found to describe the equilibrium adsorption data well. The mechanisms and characteristics of sorption of these ionizable organic contaminants onto surfactant-modified bentonite from water were investigated systematically and described quantitatively. The sorption properties are affected by the treatment conditions, such as amount of organobentonite, and the properties of organic compounds. Results indicated that adsorption of phenols from water was in proportion to their hydrophobicities, which increased with chlorine addition (phenol |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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