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CelloZIFPaper: Cellulose-ZIF hybrid paper for heavy metal removal and electrochemical sensing
Stockholm Univ, Div Mat & Environm Chem, Svante Arrhenius Väg 16 C, SE-10691 Stockholm, Sweden.;Assiut Univ, Fac Sci, Dept Chem, Adv Multifunct Mat Lab, Assiut 71515, Egypt..
Stockholm Univ, Div Mat & Environm Chem, Svante Arrhenius Väg 16 C, SE-10691 Stockholm, Sweden..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Fibre- and Polymer Technology, Polymer Technology.ORCID iD: 0000-0002-1631-1781
Stockholm Univ, Div Mat & Environm Chem, Svante Arrhenius Väg 16 C, SE-10691 Stockholm, Sweden..
2022 (English)In: Chemical Engineering Journal, ISSN 1385-8947, E-ISSN 1873-3212, Vol. 446, article id 136614Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
Elsevier BV , 2022. Vol. 446, article id 136614
Keywords [en]
Metal-organic Frameworks, Cellulose, Processing, Paper Making, Water treatment, Metal Adsorption, Electrochemical-based sensing
National Category
Materials Engineering
Identifiers
URN: urn:nbn:se:kth:diva-316325DOI: 10.1016/j.cej.2022.136614ISI: 000830784600001Scopus ID: 2-s2.0-85129816704OAI: oai:DiVA.org:kth-316325DiVA, id: diva2:1687244
Note

QC 20220815

Available from: 2022-08-15 Created: 2022-08-15 Last updated: 2022-08-15Bibliographically approved

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Edlund, Ulrica

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