Synthesis of Novel pH-Responsive Magnetic Nanocomposites as Highly Efficient Heterogeneous Fenton Catalysts

Intelligent polymer was extendedly applied to fabricate a novel environmentally responsive Fenton catalyst in this study. The obtained magnetite/sodium carboxymethyl cellulose-graft-poly(acrylic acid) (Fe3O4/CMC-g-PAA) nanocomposites showed perfect superparamagnetism, pH response, and superior catal...

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Bibliographic Details
Published in:Chemistry letters 2012, Vol.41 (9), p.897-899
Main Authors: Wang, Wei, Wang, Yuan, Liu, Ying, Li, Tielong
Format: Article
Language:English
Subjects:
Catalysis
Catalysts
Dispersions
Leaching
Nanocomposites
Nanoparticles
Sodium
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Summary:Intelligent polymer was extendedly applied to fabricate a novel environmentally responsive Fenton catalyst in this study. The obtained magnetite/sodium carboxymethyl cellulose-graft-poly(acrylic acid) (Fe3O4/CMC-g-PAA) nanocomposites showed perfect superparamagnetism, pH response, and superior catalytic activity. In a wide range of pH (3–9), the highly swollen polymer coating not only favored the dispersion of Fe3O4 nanoparticles and protected them from leaching but also promoted interface mass transfer with large amounts of hydrophilic ingredients.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.2012.897