Kinetic and equilibrium studies on the removal of acid dyes from aqueous solutions by adsorption onto activated carbon cloth
JOURNAL OF HAZARDOUS MATERIALS, vol.137, no.1, pp.344-351, 2006 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 137 Issue: 1
- Publication Date: 2006
- Doi Number: 10.1016/j.jhazmat.2006.02.009
- Journal Name: JOURNAL OF HAZARDOUS MATERIALS
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Page Numbers: pp.344-351
- Keywords: acid dyes, adsorption kinetics, adsorption isotherm, activated carbon cloth, water treatment, LIQUID-PHASE ADSORPTION, TEXTILE WASTE-WATER, ANIONIC DYES, CONGO RED, ELECTROSORPTION, ELECTRODES, ISOTHERMS, ADSORBENT
- Akdeniz University Affiliated: Yes
Abstract
Removal of acid dyes Acid Blue 45, Acid Blue 92, Acid Blue 120 and Acid Blue 129 from aqueous solutions by adsorption onto high area activated carbon cloth (ACC) was investigated. Kinetics of adsorption was followed by in situ UV-spectroscopy and the data were treated according to pseudo-first-order, pseudo-second-order and intraparticle diffusion models. It was found that the adsorption process of these dyes onto ACC follows the pseudo-second-order model. Adsorption isotherms were derived at 25 degrees C on the basis of batch analysis. Isotherm data were treated according to Langmuir and Freundlich models. The fits of experimental data to these equations were examined. (c) 2006 Elsevier B.V. All rights reserved.