期刊
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
卷 13, 期 3, 页码 563-573出版社
SPRINGER
DOI: 10.1007/s11705-018-1784-x
关键词
nanomagnetic POSS; surface polymerization; thiol-ene reaction; adsorbent; water treatment
资金
- research council of the University of Tabriz
- Iran Science Elite Federation (ISEF)
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)center dot 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 These NPs could be easily withdrawn from water within a few seconds under moderate magnetic field and showed high stability in acid and alkaline aqueous mediums.
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