Adsorption of heavy metal ions from aqueous electrolyte solution on a-aluminum hydroxide. | [Physical chemistry • 1993]

Author(s):

1. S. Mustafa: National Centre Excellence Physical Chemistry, University of Peshawar, Peshawar, Pakistan

2. M. Safdar: National Centre Excellence Physical Chemistry, University of Peshawar, Peshawar, Pakistan

3. Samad Yar: National Centre Excellence Physical Chemistry, University of Peshawar, Peshawar, Pakistan

4. A. Naeem Khan: National Centre Excellence Physical Chemistry, University of Peshawar, Peshawar, Pakistan

Abstract:

The adsorption of Cu(II), Zn(II), and Co(II) on a-aluminium hydroxide was investigated as a function of temperature. Adsorption was found to increase with increasing temperature and the adsorption sequence was in the order: Cu(II) Zn(II) Co(II) Ni(II). The experimental results were analysed by the langmuir adsorption equation. The limiting amount adsorbed, Xm, of the four metal ions increases as the temperature of the system is increased. The adsorption results have been used to calculate the apparent thermodynamic parameters, AG°, AR° and AS°.

Page(s): 63-76

DOI: DOI not available

Published: Journal: Physical chemistry, Volume: 12, Issue: , Year: 1993

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