Journal
EUROPEAN POLYMER JOURNAL
Volume 72, Issue -, Pages 190-201Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.eurpolymj.2015.09.016
Keywords
Pesticide degradation; Molecular imprinting; Nanocapsule; Methyl parathion; p-Nitrophenol
Categories
Funding
- Ministry of Education of China (RFDP) [20130031110012]
- National Natural Science Foundation of China [50978138]
- PCSIRT [IRT1257]
- NFFTBS [J1103306]
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The removal of organophosphorus pesticide residues is of great importance to environment treatment nowadays. In this work, we designed a novel imprinted hollow nanocapsule which could effectively eliminate organophosphorus pesticide residues remained in water environment. The shell of the methyl parathion imprinted nanocapsule was prepared based on a multi-pyridine-ligand functional monomer, N-(4-vinylbenzyl)-di(2-picolyl) amine. The obtained nanocapsule showed a high catalytic efficiency towards methyl parathion, with an initial hydrolysis rate of 3.1 x 10(-2) mM/h, 355-fold relative to the self-hydrolysis of methyl parathion. And a low Km value, 0.6 mM, was observed, indicating a good affinity of functional ligand on the nanocapsule towards methyl parathion. Additionally, the obtained hollow nanocapsule could further remove p-nitrophenol generated in the catalytic degradation system, another hazardous substance, by enriching part of p-nitrophenol in its central cavity. (C) 2015 Elsevier Ltd. All rights reserved.
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