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Study on the adsorption of cadmium(II) from aqueous solution by D152 resin.
J Hazard Mater. 2009 Jul 30; 166(2-3):815-20.JH

Abstract

The feasibility of using D152 resin as an adsorbent for cadmium(II) was examined. The adsorption capacity of D152 resin for cadmium(II) ions was studied as a function of solution pH, temperature and contact time. The optimal pH for the adsorption of cadmium(II) ions was found to be 5.95 in the HAc-NaAc system. The maximum uptake capacity of cadmium(II) was estimated to 378 mg/g D152 resin at 298 K, at an initial pH value of 5.95. The results obtained from equilibrium adsorption studies were conformed to the Langmuir and Freundlich and the correlation coefficients have been evaluated. The apparent adsorption rate constant was k(298 K)=4.01 x 10(-5)s(-1), and the apparent activation energy was 2.78 kJ/mol. Thermodynamic parameters, DeltaS was 108 J/(mol K), heat of adsorption (Delta H) value of 12.8 kJ/mol indicated the endothermic nature of the adsorption process, and a decrease of Gibbs free energy (Delta G) with increasing temperature also indicated the spontaneous nature of the process, respectively. The elution tests were carried out using various mixed reagents. The maximum elution percent of cadmium(II) ions were obtained when the reagent 0.5 mol/L HCl was used.

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Publisher Full Text

Authors+Show Affiliations

Xiong CH
Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou 310035, PR China. xiongch@163.com
Yao CP
No affiliation info available

MeSH

AdsorptionCadmiumFeasibility StudiesHydrogen-Ion ConcentrationResins, SyntheticSolutionsTemperatureThermodynamicsWater Pollutants, ChemicalWater Purification

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19131160

Citation

Xiong, C H., and C P. Yao. "Study On the Adsorption of cadmium(II) From Aqueous Solution By D152 Resin." Journal of Hazardous Materials, vol. 166, no. 2-3, 2009, pp. 815-20.
Xiong CH, Yao CP. Study on the adsorption of cadmium(II) from aqueous solution by D152 resin. J Hazard Mater. 2009;166(2-3):815-20.
Xiong, C. H., & Yao, C. P. (2009). Study on the adsorption of cadmium(II) from aqueous solution by D152 resin. Journal of Hazardous Materials, 166(2-3), 815-20. https://doi.org/10.1016/j.jhazmat.2008.11.082
Xiong CH, Yao CP. Study On the Adsorption of cadmium(II) From Aqueous Solution By D152 Resin. J Hazard Mater. 2009 Jul 30;166(2-3):815-20. PubMed PMID: 19131160.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Study on the adsorption of cadmium(II) from aqueous solution by D152 resin. AU - Xiong,C H, AU - Yao,C P, Y1 - 2008/12/03/ PY - 2008/05/04/received PY - 2008/11/23/revised PY - 2008/11/24/accepted PY - 2009/1/10/entrez PY - 2009/1/10/pubmed PY - 2009/8/6/medline SP - 815 EP - 20 JF - Journal of hazardous materials JO - J Hazard Mater VL - 166 IS - 2-3 N2 - The feasibility of using D152 resin as an adsorbent for cadmium(II) was examined. The adsorption capacity of D152 resin for cadmium(II) ions was studied as a function of solution pH, temperature and contact time. The optimal pH for the adsorption of cadmium(II) ions was found to be 5.95 in the HAc-NaAc system. The maximum uptake capacity of cadmium(II) was estimated to 378 mg/g D152 resin at 298 K, at an initial pH value of 5.95. The results obtained from equilibrium adsorption studies were conformed to the Langmuir and Freundlich and the correlation coefficients have been evaluated. The apparent adsorption rate constant was k(298 K)=4.01 x 10(-5)s(-1), and the apparent activation energy was 2.78 kJ/mol. Thermodynamic parameters, DeltaS was 108 J/(mol K), heat of adsorption (Delta H) value of 12.8 kJ/mol indicated the endothermic nature of the adsorption process, and a decrease of Gibbs free energy (Delta G) with increasing temperature also indicated the spontaneous nature of the process, respectively. The elution tests were carried out using various mixed reagents. The maximum elution percent of cadmium(II) ions were obtained when the reagent 0.5 mol/L HCl was used. SN - 1873-3336 UR - https://www.unboundmedicine.com/medline/citation/19131160/Study_on_the_adsorption_of_cadmium_II__from_aqueous_solution_by_D152_resin_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(08)01785-8 DB - PRIME DP - Unbound Medicine ER -