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CelloZIFPaper: Cellulose-ZIF hybrid paper for heavy metal removal and electrochemical sensing

Chemical engineering journal (Lausanne, Switzerland : 1996), 2022-10, Vol.446 [Peer Reviewed Journal]

ISSN: 1873-3212 ;ISSN: 1385-8947 ;EISSN: 1873-3212 ;DOI: 10.1016/j.cej.2022.136614

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  • Title:
    CelloZIFPaper: Cellulose-ZIF hybrid paper for heavy metal removal and electrochemical sensing
  • Author: Abdelhamid, Hani Nasser ; Georgouvelas, Dimitrios ; Edlund, Ulrica ; Mathew, Aji P.
  • Subjects: Cellulose ; Electrochemical-based sensing ; Metal Adsorption ; Metal-organic Frameworks ; Paper Making ; Processing ; Water treatment
  • Is Part Of: Chemical engineering journal (Lausanne, Switzerland : 1996), 2022-10, Vol.446
  • Description: The processing of hierarchical porous zeolitic imidazolate frameworks (ZIF-8) into a cellulose paper using sheet former Rapid-Kothen (R.K.) is reported. The procedure is a promising route to overcome a significant bottleneck towards applying metal-organic frameworks (MOFs) in commercial products. ZIF-8 crystals were integrated into cellulose pulp (CP) or TEMPO (2,2,6,6-tetramethylpiperidine-1-oxyl radical)-oxidized cellulose nanofibrils (TOCNF) following an in-situ or ex-situ process; the materials were denoted as CelloZIFPaper_In Situ and CelloZIFPaper_Ex Situ, respectively. The materials were applied as adsorbents to remove heavy metals from water, with adsorption capacities of 66.2-354.0 mg/g. CelloZIFPaper can also be used as a stand-alone working electrode for the selective sensing of toxic heavy metals, for instance, lead ions (Pb2+), using electrochemical-based methods with a limit of detection (LOD) of 8 mu M. The electrochemical measurements may advance 'Lab-onCelloZIFPaper' technologies for label-free detection of heavy metal ions.
  • Language: English
  • Identifier: ISSN: 1873-3212
    ISSN: 1385-8947
    EISSN: 1873-3212
    DOI: 10.1016/j.cej.2022.136614
  • Source: SWEPUB Freely available online
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