Smart and recyclable Fe3O4@APTES-13-CD nanoparticles with supramolecular host-guest synergistic enhancement effect for 2-chloro-4-nitrophenol removal
SSRN Electronic Journal(2023)
Abstract
A facile and efficient strategy was introduced to prepare p-tolylsulfonyl-13-cyclodextrin (TsO-13-CD). Subsequently, the smart and recyclable Fe3O4@APTES-13-CD nanoparticles were prepared via between Fe3O4@APTES and TsO-13-CD. And then, the structures of TsO-13-CD and Fe3O4@APTES-13-CD were characterized and analyzed. Finally, the Fe3O4@APTES-13-CD nanoparticles was utilized as a heterogeneous Fenton-like catalyst. The catalytic performance of Fe3O4@APTES-13-CD for 2-chloro-4-nitrophenol (4 -C2-NP) were assessed and studied. Accordingly, the degradation process of 4-C-2-NP fitted the pseudo first-order kinetics model. In the meantime, the catalytic activity of Fe3O4@APTES-13-CD was higher than that of Fe3O4@APTES-a-CD or Fe3O4@APTES-y-CD. More importantly, the Fe3O4@APTES-13-CD possessed good regeneration and reuse ability. In addition, the possible reaction route and degradation mechanism were proposed with synergistic effects. Consequently, the Fe3O4@APTES-13-CD can potentially serve as a smart and recyclable heterogeneous Fenton-like catalyst.(c) 2023 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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Key words
nanoparticles,host-guest
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