May 19, 2024
University of Maragheh
فارسی
Bagher Eftekhari-Sis

Bagher Eftekhari-Sis

Academic rank: Professor
Address: Department of Chemistry, University of Maragheh, P.O.Box 55181-83111, Maragheh, Iran
Education: PhD. in Organic Chemistry
Phone: +984137278900-Int.512
Faculty: Faculty of Basic Sciences
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Research

Title
Cube-octameric silsesquioxane (POSS)-capped magnetic iron oxide nanoparticles for the efficient removal of methylene blue
Type Article
Keywords
nanomagnetic POSS surface polymerization thiol-ene reaction adsorbent water treatment
Year
2019
Journal Frontiers of Chemical Science and Engineering
DOI 10.1007%2Fs11705-018-1784-x
Researchers Ali Akbari، naser arsalani، Bagher Eftekhari-Sis، Mojtaba Amini، Gholamreza Gohari، Esmaiel Jabbari

Abstract

Octavinyl polyhedral oligomeric silsesquioxane (POSS) was polymerized on the surface of Fe3O4 nanoparticles (NPs) and then the NPs were functionalized with carboxylic acid groups using thiol-ene click reactions with thioglycolic acid. The as-prepared Fe3O4@POSS-COOH magnetic hybrid NPs had mesoporous structures with an average particle diameter of 15 nm and a relatively high specific surface area of 447 m2·g−1. Experimental results showed that 4 mg of Fe3O4@POSS-COOH NPs efficiently adsorbed and removed methylene blue from water at 5 min. This is due to the presence of both carboxylic acid and pendant vinyl groups on the Fe3O4@POSS-COOH NPs. These NPs could be easily withdrawn from water within a few seconds under moderate magnetic field and showed high stability in acid and alkaline aqueous mediums.
University of Maragheh
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