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Issue 35, 2015
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Graphene as a template and structural scaffold for the synthesis of a 3D porous bio-adsorbent to remove antibiotics from water

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Abstract

A graphene–soy protein (GS) aerogel was prepared by a simple thermal reduction method and then used as an adsorbent for the removal of antibiotics. The GS aerogel was characterized by an optical contact angle meter, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman, Branauer–Emmett–Teller (BET) and Fourier transform infrared spectroscopy (FTIR). In GS, graphene acts as a template that loads onto the surface of the protein through hydrogen bonds to form a layered bulk unit and interacts with each other to form self-assembled hydrogels. Moreover, graphene interacts well with protein without obvious structural damage and does not agglomerate. The resulting GS has a high specific area of 30.07 m2 g−1 with abundant microspores and excellent hydrophilic properties, which lead to excellent adsorption properties for tetracycline (500.0 mg g−1) and ciprofloxacin (500.0 mg g−1). This result suggests that the small quantity of graphene assisted the protein to form an excellent bio-adsorbent.

Graphical abstract: Graphene as a template and structural scaffold for the synthesis of a 3D porous bio-adsorbent to remove antibiotics from water

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Publication details

The article was received on 15 Oct 2014, accepted on 12 Mar 2015 and first published on 12 Mar 2015


Article type: Paper
DOI: 10.1039/C4RA12413H
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Citation: RSC Adv., 2015,5, 27964-27969
  • Open access: Creative Commons BY-NC license
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    Graphene as a template and structural scaffold for the synthesis of a 3D porous bio-adsorbent to remove antibiotics from water

    Y. Zhuang, F. Yu, J. Ma and J. Chen, RSC Adv., 2015, 5, 27964
    DOI: 10.1039/C4RA12413H

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