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In relation to this article, we declare that there is no conflict of interest.
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Received September 6, 2013
Accepted October 17, 2013
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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Synthesis and application of alumina supported nano zero valent zinc as adsorbent for the removal of arsenic and nitrate

Institute of Chemical Sciences, Bahauddin Zakariya University, Multan, Pakistan 1Institute of Chemistry, Government College University Faisalabad, Pakistan 2Department of Chemistry, Shah Abdul Latif University, Khairpur, Pakistan
mohammadzuber@gmail.com
Korean Journal of Chemical Engineering, February 2014, 31(2), 284-288(5), 10.1007/s11814-013-0219-0
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Abstract

Arsenic and nitrate are ill-famed environmental pollutants that are responsible for various lethal diseases. Their removal from drinking water is very essential. In present study, newly synthesized alumina supported nano zerovalent zinc (Alumina-nZvZ) has been tested to remove arsenic and nitrate. Quantitative analyses of arsenic have been performed spectrophotometrically and while that of nitrates ions colorimetrically. After optimization of time and amount of adsorbent, Langmuir, Freundlich and D-R isotherms were applied to determine different parameters for the assessment of adsorption. Synthesized samples were characterized by scanning electron microscopy (SEM) to evaluate porosity and void size. Alumina coated with reduced ZnCl2 showed better efficiency for removal of arsenic and nitrate ions. Kinetics of adsorption was evaluated by using pseudo first-order and pseudo second-order rate equations.

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