Duan, Yaqing and Freyburger, Auriane and Kunz, Werner and Zollfrank, Cordt (2018) Lignin/Chitin Films and Their Adsorption Characteristics for Heavy Metal Ions. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 6 (5). pp. 6965-6973. ISSN 2168-0485,
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This study presents the fabrication of novel lignin/chitin films from a solvent system composed of the ionic liquid 1-butyl-3-methylimidazolium acetate and gamma-valerolactone as a biosourced cosolvent. Scanning electron microscopy and attentuated total reflectance Fourier transform infrared spectroscopy confirmed the successful preparation of the lignin/chitin films. The application of lignin/chitin film as an adsorbent for Fe(III) and Cu(II) cation uptake from aqueous solutions is discussed. It was observed that the maximum adsorption capacity for Fe(III) was 84 wt % and for Cu(II) was 22 wt % within 48 h. The lignin/chitin films could be regenerated by desorption of the Fe(III) Cu(II) ions. Up to 12 and 46 wt %, respectively, could be released within 48 h by directly soaking the metal ion loaded film within water at room temperature. The lignin/chitin film can be considered as a stable and recyclable bioadsorbent material with a high adsorption metal ion capacity for water purification.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | KRAFT LIGNIN; WASTE-WATER; CHITIN; REMOVAL; BIOMASS; BIOSORPTION; BIOSORBENTS; COMPOSITE; PLATFORM; SORPTION; lignin; chitin; biofilm sorbent; ionic liquids; heavy metal adsorption; desorption |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Physikalische und Theoretische Chemie > Chair of Chemistry VI - Physical Chemistry (Solution Chemistry) > Prof. Dr. Werner Kunz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 23 Mar 2020 12:15 |
| Last Modified: | 06 Apr 2020 05:20 |
| URI: | https://pred.uni-regensburg.de/id/eprint/14651 |
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