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Received December 11, 2020
Accepted March 28, 2021
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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The nano-magnetite-loaded 2-mercaptobenzoxazole as an adsorbent for the selective removal of the Pb2+, Ni2+ and Cd2+ ions from aqueous solutions

1Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan, 6517838683, Iran 2Department of Research and Development of the Faran Shimi Pharmaceutical Company, Tuyserkan, Iran
Korean Journal of Chemical Engineering, July 2021, 38(7), 1510-1521(12), 10.1007/s11814-021-0792-6
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Abstract

The present research focuses on the adsorption efficiency of nano-magnetite loaded 2-mercapto- benzoxazole as an adsorbent (Fe3O4@SiO2@CPTMS@MBOL) for Pb+2, Ni+2 and Cd+2 removal from the contaminated water by the technique of adsorption. The influence of pH, contact time, adsorbent dosage and temperature in 50 ppm concentration of each ion solutions on the sensitivity of the removal procedure was examined. By ICP test the adsorption data were fixed to linearize the adsorption isotherms of the Langmuir and Freundlich equations. This efficient adsorbent showed significant results for metal ion removal from water by formation of complex with adsorbent. From the Langmuir isotherm, the maximum adsorption capacities of nano magnetic adsorbent towards Pb2+, Ni2+ and Cd2+ ions were 238.4, 203.2 and 22.37mgg-1.

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