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Effect of Temperature on Sequestration of Cu(ll) from Aqueous Solution onto Turmeric Powder

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dc.contributor.author AMTUL QAYOOM
dc.contributor.author SYED ARIF KAZMI
dc.date.accessioned 2023-11-02T07:15:28Z
dc.date.available 2023-11-02T07:15:28Z
dc.date.issued 2010-10-20
dc.identifier.citation Qayoom, A., & Kazmi, S. A. (2010). Effect of temperature on sequestration of Cu (II) from aqueous solution onto turmeric powder. Journal of the Chemical Society of Pakistan, 32(5), 582-588. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19898
dc.description.abstract In this work effect of temperature on adsorption of Cu(II) onto turmeric powder was investigated in order to understand sequestrating behavior of turmeric powder. Langmuir, Freundlich and D-R equilibrium models were employed and changes in equilibrium parameters with changing temperature have been discussed. Various thermodynamic parameters such as ?Hº, ?Gº and ?Sº have been calculated. It was found that with increase in temperature maximum adsorption capacities of Cu(II) increase which showed that the adsorption of Cu(II) onto turmeric powder is endothermic. ?Hº and Ea values also confirmed the same trend. Entropy values showed increased in randomness with increasing temperature. Gibbs free energies were non spontaneous at all the temperatures studied. E values were in the range of 2.89-3.53KJmol⁻¹, which indicated that adsorption is essentially of physical nature. The value of S* is much less than 1 indicating favourable sticking of adsorbate to adsorbent with physiosorption mechanism predominant. 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 Effect of Temperature on Sequestration of Cu(ll) from Aqueous Solution onto Turmeric Powder en_US
dc.type Article en_US


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