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A Study of Cobalt Ions Removal from Aqueous Solutions by Sodium X-Zeolite

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dc.contributor.author SHER AKBAR
dc.contributor.author TAJAMAL HUSSAIN SHAH
dc.contributor.author MUHAMMAD ANWAR
dc.contributor.author MUZAFFAR KHAN
dc.date.accessioned 2023-12-01T04:15:26Z
dc.date.available 2023-12-01T04:15:26Z
dc.date.issued 2010-06-11
dc.identifier.citation Akbar, S., Shah, T. H., Anwar, M., & Khan, M. (2010). A study of cobalt ions removal from aqueous solutions by sodium X-zeolite. Journal of the Chemical Society of Pakistan, 32(3), 331-337. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19984
dc.description.abstract Investigations were made to determine the ion-exchange removal of cobalt ions from aqueous solutions over a pH range of 5.5-7.0 by synthetic zeolite NaX using the batch method with initial cobalt chloride solution concentration within the range 0.003 to 0.013 mol dm⁻³. The percentage Co²⁺exchange as a function of Co²⁺ ions concentration and temperature were determined by means of chemical method. It was found that Co²⁺ ion-exchange phenomenon depended on the concentration, temperature and diameter of the hydrated Co²⁺ ion. Furthermore, cobalt exchange studies showed that over the complete concentration range the adsorption ratios for Co²⁺ ions exchanged into NaX-zeolite correlated with the linear form of the Langmuir and Freundlich adsorption isotherms. Standard thermodynamic parameters (ΔG°, ΔH°, ΔS°) determined by using the values of Langmuir binding constants instead of the values of the thermodynamic equilibrium constant for the exchange process were found not appropriate in order to interpret the results of the ion-exchange reaction. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher HEJ Research Institute of Chemistry, University of Karachi, Karachi. en_US
dc.title A Study of Cobalt Ions Removal from Aqueous Solutions by Sodium X-Zeolite en_US
dc.type Article en_US


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