عنوان
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Cube-octameric silsesquioxane (POSS)-capped magnetic iron oxide nanoparticles for the efficient removal of methylene blue
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نوع پژوهش
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مقاله چاپشده در مجلات علمی
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کلیدواژهها
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nanomagnetic POSS surface polymerization thiol-ene reaction adsorbent water treatment
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چکیده
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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 These NPs could be easily withdrawn from water within a few seconds under moderate magnetic field and showed high stability in acid and alkaline aqueous mediums.
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پژوهشگران
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اسماعیل جباری (نفر ششم به بعد)، غلامرضا گوهری (نفر پنجم)، مجتبی امینی (نفر چهارم)، باقر افتخاری سیس (نفر سوم)، ناصر ارسلانی (نفر دوم)، علی اکبری (نفر اول)
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