Abstract

Abstract 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.

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