Efficient removal of cationic dyes from aqueous solution by polymer-modified magnetic nanoparticles
2012; Elsevier BV; Volume: 198-199; Linguagem: Inglês
10.1016/j.cej.2012.05.074
ISSN1873-3212
AutoresFei Ge, Hui Ye, Mengmeng Li, Bao‐Xiang Zhao,
Tópico(s)Dye analysis and toxicity
ResumoWe explored the removal of cationic dyes – crystal violet, methylene blue and alkali blue 6B – from water solution by adsorption with magnetic nanoparticles (MNPs) modified with 3-aminopropyltriethoxysilane and copolymers of acrylic acid and crotonic acid. The noval magnetic nanoparticles was characterized by transmission electron microscopy, X-ray diffraction, infra-red spectra and thermogravimetric analysis. The cationic dyes could be quickly removed from water solution with high efficiency at pH 5–12. More significantly, the MNP showed high efficiency as a reusable adsorbent for fast and convenient removal of cationic dyes from water solution.
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