Equilibrium studies for the adsorption of Acid dye onto modified hectorite
| Autor: | M. Pulikesi, Subramanian Sivanesan, V. Ramamurthi, P. Baskaralingam |
|---|---|
| Rok vydání: | 2006 |
| Předmět: |
Langmuir
Environmental Engineering Chemical Phenomena Health Toxicology and Mutagenesis Inorganic chemistry Naphthalenes Cetylpyridinium chloride chemistry.chemical_compound Adsorption X-Ray Diffraction Environmental Chemistry Freundlich equation Coloring Agents Waste Management and Disposal Aqueous solution Chemistry Physical Silicates Cationic polymerization Hydrogen-Ion Concentration Pollution chemistry Hectorite Thermodynamics Azo Compounds Acid dye |
| Zdroj: | Journal of Hazardous Materials. 136:989-992 |
| ISSN: | 0304-3894 |
| DOI: | 10.1016/j.jhazmat.2006.01.011 |
| Popis: | The adsorption of Acid dye, C.I. Acid Red 151 from aqueous solution onto modified hectorite at different concentrations and pH has been studied. Hectorite clay has been modified using two cationic surfactants, cetyldimethylbenzylammonium chloride and cetylpyridinium chloride. Present experimental study shows that acidic pH favours enhanced adsorption. The adsorption isotherms are described by means of Langmuir and Freundlich isotherms. The adsorption capacity has been found to be 208.33 and 169.49 mg g(-1) for the modified cetyldimethylbenzylammonium chloride-hectorite (CDBA-hect) and cetylpyridinium chloride (CP-hect), respectively. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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