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Novel magnetic composite adsorbent of phenolic compounds based on waste poly(ethylene terephthalate) and carbon encapsulated magnetic nanoparticles

Abstract

A novel magnetic carbon composite based on carbon encapsulated iron nanoparticles and waste poly(ethylene terephthalate) was synthesized. The magnetic filler, i.e. carbon-encapsulated iron nanoparticles, was homogenously dispersed in the solution of the carbon precursor. The composites were fabricated via thermal treatment with the aid of three activating agents, KOH, ZnCl2 and CO2. The adsorbents were characterized with nitrogen adsorption/desorption analysis, scanning and transmission electron microscopy, Raman and IR spectroscopy, thermograwimetry and magnetometry analyses. The textural properties of the adsorbents were strongly influenced by the content of magnetic filler. The magnetic composites had relatively high adsorption capacity of phenol and its chlorinated derivatives. The adsorption capacity reached even 230 mg/g, which is comparable to the commercial activated carbon (250 mg/g). The adsorption kinetics of composites was generally faster in comparison with activated carbon and the intra-particle diffusion rates were lower for the magnetic composites. The synthesized composites had superior corrosion resistance in comparison to magnetic composites of activated carbon. The magnetic composites had higher regeneration potential than commercial activated carbon.

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Publication details

The article was received on 24 May 2017, accepted on 11 Sep 2017 and first published on 14 Sep 2017


Article type: Paper
DOI: 10.1039/C7NJ01818E
Citation: New J. Chem., 2017, Accepted Manuscript
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    Novel magnetic composite adsorbent of phenolic compounds based on waste poly(ethylene terephthalate) and carbon encapsulated magnetic nanoparticles

    P. Strachowski, W. Kaszuwara and M. Bystrzejewski, New J. Chem., 2017, Accepted Manuscript , DOI: 10.1039/C7NJ01818E

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