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Adsorption of Pb(II) and Cd(II) metal ions from aqueous solutions by mustard husk.
J Hazard Mater. 2008 Feb 11; 150(3):619-25.JH

Abstract

The adsorption of Pb(II) and Cd(II) metal ions on mustard husk has been found to be concentration, pH, contact time, adsorbent dose and temperature dependent. The adsorption parameters were determined using Langmuir and Freundlich isotherm models. The adsorption isotherm studies clearly indicated that the adsorptive behavior of Pb(II) and Cd(II) metal ions on mustard husk satisfies not only the Langmuir assumptions but also the Freundlich assumptions, i.e. multilayer formation on the surface of the adsorbent with an exponential distribution of site energy. Ion exchange and surface complexation are the major adsorption mechanisms involved. The applicability of Lagergren kinetic model has also been investigated. Thermodynamic constant (k(ad)), free energy change (DeltaG), enthalpy change (DeltaH) and entropy change (DeltaS) were calculated for predicting the nature of adsorption. The results indicate the potential application of this method for effluent treatment in industries and also provide strong evidence to support the adsorption mechanism proposed.

Authors+Show Affiliations

Centre for Fire, Explosive & Environment Safety, Brig. S. K. Mazumdar Road, Timarpur, Delhi 110054, India.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

17574736

Citation

Meena, Ajay Kumar, et al. "Adsorption of Pb(II) and Cd(II) Metal Ions From Aqueous Solutions By Mustard Husk." Journal of Hazardous Materials, vol. 150, no. 3, 2008, pp. 619-25.
Meena AK, Kadirvelu K, Mishraa GK, et al. Adsorption of Pb(II) and Cd(II) metal ions from aqueous solutions by mustard husk. J Hazard Mater. 2008;150(3):619-25.
Meena, A. K., Kadirvelu, K., Mishraa, G. K., Rajagopal, C., & Nagar, P. N. (2008). Adsorption of Pb(II) and Cd(II) metal ions from aqueous solutions by mustard husk. Journal of Hazardous Materials, 150(3), 619-25.
Meena AK, et al. Adsorption of Pb(II) and Cd(II) Metal Ions From Aqueous Solutions By Mustard Husk. J Hazard Mater. 2008 Feb 11;150(3):619-25. PubMed PMID: 17574736.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Adsorption of Pb(II) and Cd(II) metal ions from aqueous solutions by mustard husk. AU - Meena,Ajay Kumar, AU - Kadirvelu,K, AU - Mishraa,G K, AU - Rajagopal,Chitra, AU - Nagar,P N, Y1 - 2007/05/10/ PY - 2006/06/19/received PY - 2007/05/03/revised PY - 2007/05/03/accepted PY - 2007/6/19/pubmed PY - 2008/5/7/medline PY - 2007/6/19/entrez SP - 619 EP - 25 JF - Journal of hazardous materials JO - J Hazard Mater VL - 150 IS - 3 N2 - The adsorption of Pb(II) and Cd(II) metal ions on mustard husk has been found to be concentration, pH, contact time, adsorbent dose and temperature dependent. The adsorption parameters were determined using Langmuir and Freundlich isotherm models. The adsorption isotherm studies clearly indicated that the adsorptive behavior of Pb(II) and Cd(II) metal ions on mustard husk satisfies not only the Langmuir assumptions but also the Freundlich assumptions, i.e. multilayer formation on the surface of the adsorbent with an exponential distribution of site energy. Ion exchange and surface complexation are the major adsorption mechanisms involved. The applicability of Lagergren kinetic model has also been investigated. Thermodynamic constant (k(ad)), free energy change (DeltaG), enthalpy change (DeltaH) and entropy change (DeltaS) were calculated for predicting the nature of adsorption. The results indicate the potential application of this method for effluent treatment in industries and also provide strong evidence to support the adsorption mechanism proposed. SN - 0304-3894 UR - https://www.unboundmedicine.com/medline/citation/17574736/Adsorption_of_Pb_II__and_Cd_II__metal_ions_from_aqueous_solutions_by_mustard_husk_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0304-3894(07)00690-5 DB - PRIME DP - Unbound Medicine ER -