European Journal of Chemistry 2015, 6(3), 296-300. doi:10.5155/eurjchem.6.3.296-300.1263

Removal of Basic Red 18 onto modified sepiolite: Equilibrium, adsorption kinetics and thermodynamic studies


Ersan Turunc (1,*)

(1) Advanced Technology Research and Application Center, Mersin University, Mersin, 33343, Turkey
(*) Corresponding Author

Received: 26 Mar 2015, Accepted: 16 May 2015, Published: 30 Sep 2015

Abstract


The adsorption of Basic Red 18 (BR 18) from aqueous solution onto KF modified sepiolite was carried out as a function of pH, initial dye concentration, contact time and temperature. The equilibrium data were evaluated according to Langmuir and Freundlich models. The experimental results showed that the best correlation was obtained on Freundlich model. The adsorption kinetics was examined with pseudo-first order, pseudo-second order and intraparticle diffusion models. The result was best fitted for pseudo-second order kinetic model. Thermodynamic investigations were also performed to determine Δ, Δ and Δ. The results indicated that the adsorption of BR 18 was exothermic and spontaneous.


Keywords


BR 18; Adsorption; KF/sepiolite; Dye removal; Thermodynamic; Adsorption kinetics

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DOI: 10.5155/eurjchem.6.3.296-300.1263

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How to cite


Turunc, E. Eur. J. Chem. 2015, 6(3), 296-300. doi:10.5155/eurjchem.6.3.296-300.1263
Turunc, E. Removal of Basic Red 18 onto modified sepiolite: Equilibrium, adsorption kinetics and thermodynamic studies. Eur. J. Chem. 2015, 6(3), 296-300. doi:10.5155/eurjchem.6.3.296-300.1263
Turunc, E. (2015). Removal of Basic Red 18 onto modified sepiolite: Equilibrium, adsorption kinetics and thermodynamic studies. European Journal of Chemistry, 6(3), 296-300. doi:10.5155/eurjchem.6.3.296-300.1263
Turunc, Ersan. "Removal of Basic Red 18 onto modified sepiolite: Equilibrium, adsorption kinetics and thermodynamic studies." European Journal of Chemistry [Online], 6.3 (2015): 296-300. Web. 21 Nov. 2019
Turunc, Ersan. "Removal of Basic Red 18 onto modified sepiolite: Equilibrium, adsorption kinetics and thermodynamic studies" European Journal of Chemistry [Online], Volume 6 Number 3 (30 September 2015)

DOI Link: https://doi.org/10.5155/eurjchem.6.3.296-300.1263

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