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- W3112912101 endingPage "144307" @default.
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- W3112912101 abstract "Developing robust and effective adsorbent for removing ubiquitous pharmaceutical diclofenac (DCF) from the aquatic environment is vitally important for environmental safety. Hence, a novel chitosan-based multilayer adsorbent (FCS-PD) with magnetic separation ability and surface functionality was successfully assembled, which had countless potential for removing contaminants from water. A series of instrumental technologies were performed to demonstrate the physicochemical properties of FCS-PD. Its adsorption performance toward DCF removal was comprehensively evaluated in synthetic water and surface water. The effects of microplastics, inorganic ions and humic acid on the adsorption were investigated. The maximum adsorption capacity of FCS-PD was calculated as 434.78 mg/g under neutral conditions, exhibiting superior adsorption performance than most reported adsorbents. The DCF in surface water was practically removed at low concentration (50 μg/L). FCS-PD presented a multistage kinetics controlled by chemisorption and intraparticle diffusion, which was emphasized by the pseudo-second-order kinetic and intra-particle diffusion analysis. After five cycles of adsorption and regeneration, the adsorption capacity only decreased by 9.9%, indicating the satisfactory regeneration of FCS-PD. The analysis of high-resolution X-ray photoelectron spectroscopic (XPS) and Fourier transform infrared spectroscopy (FTIR) revealed that the quaternary ammonium groups on the outer layer and the amino and hydroxyl groups on the chitosan layer are involved in the capture of DCF under electrostatic force and hydrogen bonding." @default.
- W3112912101 created "2020-12-21" @default.
- W3112912101 creator A5002866463 @default.
- W3112912101 creator A5011103237 @default.
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- W3112912101 creator A5051392517 @default.
- W3112912101 creator A5076707326 @default.
- W3112912101 creator A5081389564 @default.
- W3112912101 date "2021-03-01" @default.
- W3112912101 modified "2023-10-02" @default.
- W3112912101 title "Efficient removal of diclofenac from surface water by the functionalized multilayer magnetic adsorbent: Kinetics and mechanism" @default.
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- W3112912101 doi "https://doi.org/10.1016/j.scitotenv.2020.144307" @default.
- W3112912101 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/33341637" @default.
- W3112912101 hasPublicationYear "2021" @default.
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