Cube-octameric silsesquioxane (POSS)-capped magnetic iron oxide nanoparticles for the efficient removal of methylene blue  

作　　者：Ali Akbari Nasser Arsalani Bagher Eftekhari-Sis Mojtaba Amini Gholamreza Gohari Esmaiel Jabbari 

机构地区：[1]Department of Chemistry,Faculty of Science,University of Maragheh,Maragheh,Iran [2]Research Laboratory of Polymer,Department of Organic and Biochemistry,Faculty of Chemistry,University of Tabriz,Tabriz,Iran [3]Department of Horticulture,Faculty of Agriculture,University of Maragheh,Maragheh,Iran [4]Department of Chemical Engineering,University of South Carolina,Columbia,SC 29208,USA

出　　处：《Frontiers of Chemical Science and Engineering》2019年第3期563-573,共11页化学科学与工程前沿（英文版）

摘　　要：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 m^2· 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to the presence of both carboxylic acid and pendant vinyl groups on the Fe3O4@POSS-COOH NPs.These NPs could be easily withdrawn from water within a few seconds under moderate magnetic field and showed high stability in acid and alkaline aqueous mediums.

关 键 词：nanomagnetic POSS surface POLYMERIZATION THIOL-ENE reaction ADSORBENT water treatment 

分 类 号：TQ[化学工程]