Adsorption of 3-chloroaniline on potato skin in aqueous solution

Mohammed, N. S., Flowers, T.H. and Duncan, H.J. (2016) Adsorption of 3-chloroaniline on potato skin in aqueous solution. Indian Journal of Materials Science, 2016, 1972395. (doi: 10.1155/2016/1972395)

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The adsorption behaviour of aromatic amine 3-chloroaniline (3-CA) from aqueous solution on fresh potato skin was investigated. A series of batch experiments were conducted under different experimental conditions of contact time, 3-chloroaniline concentration, weight of potato skin, pH, temperature, and ionic strength using RP-HPLC analysis. Adsorption equilibrium of 3-chloroaniline at concentration of 10 µg/mL on 1 g weight of chopped potato skin was achieved in 24 hours. Using different varieties of potato skin showed that the adsorption of 3-CA on Nicola variety is higher compared to Sante and Maris Peer varieties. Adsorption on potato skin was found to be generally higher compared to cortex and pith tissues. Analysis of adsorption isotherm shows that equilibrium data was fitted to Freundlich model (R² = 0.977). Maximum adsorption capacities of 3-chloroaniline were found in the pH range from 3 to 9, whereas low adsorption quantities were found in high acidic and high basic solutions (pH 2 and pH 13, resp.). Adsorption capacity increased with an increase in temperature from 4°C to 30°C but decreased with further increase of temperature to 40°C. Testing the ionic strength showed that increasing the concentration of electrolyte reduces the adsorption efficiency. This study indicated that the fresh potato skin (without any treatment) is possible to use as a new adsorbent for removal of 3-chloroaniline from industrial waste water.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Flowers, Dr Hugh and Duncan, Dr Henry
Authors: Mohammed, N. S., Flowers, T.H., and Duncan, H.J.
College/School:College of Science and Engineering > School of Chemistry
Journal Name:Indian Journal of Materials Science
Publisher:Hindawi Publishing Corporation
ISSN (Online):2314-7490
Copyright Holders:Copyright © 2016 Nidhal S. Mohammed et al.
First Published:First published in Indian Journal of Materials Science 2016: 1972395
Publisher Policy:Reproduced under a Creative Commons License

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