An efficient recyclable magnetic material for the selective removal of organic pollutants

• Clément Monteil,
• Nathalie Bar,
• Agnès Bee and
• Didier Villemin

Beilstein J. Nanotechnol. 2016, 7, 1447–1453, doi:10.3762/bjnano.7.136

• harsh conditions. Keywords: adsorption; magnetic nanoparticles; organic pollutants; phosphonated polyethylenimine; Introduction During the last decades, an increased emphasis was placed on the issue of diffuse contamination of water. Toxic metals and organic pollutants are significant sources of

• successfully tested on both [15]. In addition, they often adsorb a limited amount of contaminant, considerably lower than the capacity of activated charcoal. We report herein a new adsorption process for water remediation, based on partially phosphonated polyethylenimine (PEIP)-coated magnetic nanoparticles

• . Preparation of the phosphonated polyethylenimine–maghemite material Synthesis of nanoparticles Maghemite ionic ferrofluid ([Fe] = 10−2 mol/L) was prepared by wet alkaline coprecipitation according to the Massart protocol [18][19]. Iron(III) chloride and iron(II) chloride were co-precipitated at a molar ratio