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Removal of Disperse Dye From Aqueous Solution by Novel Adsorbent Prepared From Biomass Plant Material

Removal of Disperse Dye From Aqueous Solution by Novel Adsorbent Prepared From Biomass Plant Material

Ozgül Gerçel, H Ferdi Gerçel, A Savaş Koparal, Ulker Bakir Oğütveren

J Hazard Mater. 2008 Dec 30;160(2-3):668-74.

PMID: 18448248

Abstract:

The adsorption of Disperse Orange 25 (3-[N-ethyl-4-(4-nitrophenylazo) phenylamino] propionitrile) onto activated carbon was investigated in a batch system with respect to contact time, carbon dosage, pH and temperature from aqueous solutions. The Langmuir, Freundlich and Dubinin-Radushkevich (D-R) adsorption models were applied to describe the equilibrium isotherms and the isotherm constants were also determined. The Langmuir isotherm model agrees with the experimental data well. Maximum adsorption capacity (qmax) of Disperse Orange 25 onto adsorbent was 118.93mgg(-1) at 20 degrees C. The first-order, pseudo-second-order kinetic models and the intraparticle diffusion model were used to describe the kinetic data and the rate constants were evaluated as well. The experimental data fitted very well to pseudo-second-order kinetic model. The results show that activated carbon prepared from Euphorbia rigida by sulfuric acid chemical activation could be employed as low-cost material to compare with commercial activated carbon for the removal of disperse dyes from effluents.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP31482561	Disperse Orange 25		31482-56-1	Price

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