Kinetic and isotherm studies of the adsorption of Acid Blue 92 using a low-cost non-conventional activated carbon

Adsorbents prepared from waste plants for the treatment of dyeing effluents have high significance in environmental sustainability. In this research, an attempt is made to analyze the applicability of activated carbon prepared from Euphorbia antiquorum L wood by H 3PO 4 activation method for the rem...

Full description

Saved in:
Bibliographic Details
Published in:Desalination 2009-11, Vol.249 (1), p.388-397
Main Authors: Palanisamy, P.N., Sivakumar, P.
Format: Article
Language:English
Subjects:
Acid Blue 92
Activated carbon
Adsorbents
Adsorption
Applied sciences
Chemical engineering
Dyes
Effluents
Euphorbia antiquorum
Euphorbia antiquorum L
Exact sciences and technology
Isotherms
Pollution
Surface area
Sustainability
Uptakes
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Adsorbents prepared from waste plants for the treatment of dyeing effluents have high significance in environmental sustainability. In this research, an attempt is made to analyze the applicability of activated carbon prepared from Euphorbia antiquorum L wood by H 3PO 4 activation method for the removal of Acid Blue 92 dye. Various kinetic models were used for the analysis of adsorption kinetics and pseudo second-order model fits well for the selected adsorbent–adsorbate system. The moderate rate of dye uptake indicates that the rate-determining step could be physisorption in nature. Langmuir, Freundlich and Dubinin-Raduskevich isotherm models were applied for the analysis of isotherm data. The positive enthalpy of adsorption substantiates that the adsorption process is endothermic in nature.
ISSN:0011-9164
1873-4464
DOI:10.1016/j.desal.2009.09.006