Adsorption Kinetics of Protons by α-Aluminium Hydroxide | [Journal of Chemical Society of Pakistan • 2012]

Author(s):

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

2. Muhammad Safdar: Department of Chemistry, University of Azad Jamu and Kashmir, Muzaffarabad-1300, Pakistan

3. Muhammad Waseem: Department of Chemistry, Hazara University, Mansehra Pakistan

4. Abdul-Naeem: National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan

5. Syed Tasleem: National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan

6. Khizar Hussain Shah: National Centre of Excellence in Physical Chemistry, University of Peshawar, Pakistan

7. Mohammad Tariq Jan: Department of Chemistry, University of Azad Jamu and Kashmir, Muzaffarabad-1300, Pakistan

Abstract:

The adsorption desorption rate of H+ ions on α-aluminium hydroxide has been investigated as a function of pH and temperature from aqueous electrolyte solution of ZnCl2. It is observed that the protonation of the α-Al(OH)3 surface is more dominant at pH 5 than the adsorption of Zn2+ while at pH 7 the adsorption of Zn2+ ions predominates. The experimental results are explained with the help of the film diffusion equation. The values of activation energies are found to increase with the increase in temperature of the system.

Page(s): 575-578

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 34, Issue: 3, Year: 2012

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