Projects per year
Abstract
The goal of this study was to assess the sustainability of a modified cellulose nanofiber material for the recovery of precious gold from chloride solution, with a special focus on gold recovery from acidic solutions generated by cupric and ferric chloride leaching processes. TEMPO-oxidized cellulose nanofiber in hydrogel (TOCN), dry (H-TOCN, F-TOCN) and sheet form (S-TOCN) was examined for gold adsorptivity from chloride solution. Additionally, this work describes the optimum conditions and parameters for gold recovery. The data obtained in this investigation are also modeled using kinetic (pseudo first-order and pseudo second-order), isotherm best fit (Freundlich, Langmuir and Langmuir-Freundlich), and thermodynamic (endothermic process) parameters. Results demonstrate that high levels of gold removal can be achieved with TEMPO-oxidized cellulose nanofibers (98% by H-TOCNF) and the interaction characteristics of H-TOCN with gold suggests that other precious metals could also be efficiently recovered.
Original language | English |
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Article number | 1406 |
Number of pages | 16 |
Journal | SUSTAINABILITY |
Volume | 11 |
Issue number | 5 |
DOIs | |
Publication status | Published - 6 Mar 2019 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Gold chlorides
- TEMPO-oxidized cellulose nanofibril
- Adsorption
- Sustainability
Fingerprint
Dive into the research topics of 'Recovery of Gold from Chloride Solution by TEMPO-Oxidized Cellulose Nanofiber Adsorbent'. Together they form a unique fingerprint.Projects
- 3 Finished
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CERES Mod4 Prowa
Kontturi, E. (Principal investigator), Lepikko, S. (Project Member), Meng, Z. (Project Member) & Revitzer, H. (Project Member)
01/05/2018 → 31/12/2021
Project: Academy of Finland: Other research funding
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CERES Mod5 Microplas
Wilson, B. (Principal investigator) & Lohtander-Piispa, T. (Project Member)
01/05/2018 → 31/12/2020
Project: Academy of Finland: Other research funding
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FinnCERES: Competence Center for the Materials Bioeconomy: A Flagship for our Sustainable Future
Mäkelä, K. (Principal investigator)
01/05/2018 → 31/12/2022
Project: Academy of Finland: Other research funding
Equipment
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Raw Materials Research Infrastructure
Karppinen, M. (Manager)
School of Chemical EngineeringFacility/equipment: Facility