Recovery of Gold from Chloride Solution by TEMPO-Oxidized Cellulose Nanofiber Adsorbent
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 cellulos...
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| Veröffentlicht in: | Sustainability 2019-03, Vol.11 (5), p.1406 |
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| creator | Jafari, Shila Wilson, Benjamin P. Hakalahti, Minna Tammelin, Tekla Kontturi, Eero Lundström, Mari Sillanpää, Mika |
| description | 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. |
| doi_str_mv | 10.3390/su11051406 |
| format | Article |
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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.</description><identifier>ISSN: 2071-1050</identifier><identifier>EISSN: 2071-1050</identifier><identifier>DOI: 10.3390/su11051406</identifier><language>eng</language><publisher>Basel: MDPI AG</publisher><subject>Acidic oxides ; Adsorbents ; Adsorption ; Adsorptivity ; Aqueous solutions ; Cellulose ; Cellulose fibers ; Chloride ; Data recovery ; Endothermic reactions ; Equilibrium ; Experiments ; Ferric chloride ; Gold ; Hydrogels ; Leaching ; Metals ; Nanofibers ; Process parameters ; Sodium ; Sustainability</subject><ispartof>Sustainability, 2019-03, Vol.11 (5), p.1406</ispartof><rights>2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c361t-2d3e169e918d89980a94468f6af62012a1e6e46ee0dc43fa33aed3a7f6d38f23</citedby><cites>FETCH-LOGICAL-c361t-2d3e169e918d89980a94468f6af62012a1e6e46ee0dc43fa33aed3a7f6d38f23</cites><orcidid>0000-0002-2874-6475 ; 0000-0003-2099-8835 ; 0000-0002-3248-1801</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids></links><search><creatorcontrib>Jafari, Shila</creatorcontrib><creatorcontrib>Wilson, Benjamin P.</creatorcontrib><creatorcontrib>Hakalahti, Minna</creatorcontrib><creatorcontrib>Tammelin, Tekla</creatorcontrib><creatorcontrib>Kontturi, Eero</creatorcontrib><creatorcontrib>Lundström, Mari</creatorcontrib><creatorcontrib>Sillanpää, Mika</creatorcontrib><title>Recovery of Gold from Chloride Solution by TEMPO-Oxidized Cellulose Nanofiber Adsorbent</title><title>Sustainability</title><description>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.</description><subject>Acidic oxides</subject><subject>Adsorbents</subject><subject>Adsorption</subject><subject>Adsorptivity</subject><subject>Aqueous solutions</subject><subject>Cellulose</subject><subject>Cellulose fibers</subject><subject>Chloride</subject><subject>Data recovery</subject><subject>Endothermic reactions</subject><subject>Equilibrium</subject><subject>Experiments</subject><subject>Ferric chloride</subject><subject>Gold</subject><subject>Hydrogels</subject><subject>Leaching</subject><subject>Metals</subject><subject>Nanofibers</subject><subject>Process parameters</subject><subject>Sodium</subject><subject>Sustainability</subject><issn>2071-1050</issn><issn>2071-1050</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNpNUFFLwzAYDKLg0L34CwK-CdV8SZY2j6PMKUwnOvCxZM0X7MiambTi_PVWJui93B0cd3CEXAC7FkKzm9QDsAlIpo7IiLMcssGy43_6lIxT2rABQoAGNSKvz1iHD4x7GhydB2-pi2FLyzcfYmORvgTfd01o6XpPV7OHp2W2_Gxs84WWluh970NC-mja4Jo1Rjq1KcQ1tt05OXHGJxz_8hlZ3c5W5V22WM7vy-kiq4WCLuNWICiNGgpbaF0wo6VUhVPGKc6AG0CFUiEyW0vhjBAGrTC5U1YUjoszcnmo3cXw3mPqqk3oYzssVnwii5znUrIhdXVI1TGkFNFVu9hsTdxXwKqf66q_68Q3qNpgBA</recordid><startdate>20190306</startdate><enddate>20190306</enddate><creator>Jafari, Shila</creator><creator>Wilson, Benjamin P.</creator><creator>Hakalahti, Minna</creator><creator>Tammelin, Tekla</creator><creator>Kontturi, Eero</creator><creator>Lundström, Mari</creator><creator>Sillanpää, Mika</creator><general>MDPI AG</general><scope>AAYXX</scope><scope>CITATION</scope><scope>4U-</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><orcidid>https://orcid.org/0000-0002-2874-6475</orcidid><orcidid>https://orcid.org/0000-0003-2099-8835</orcidid><orcidid>https://orcid.org/0000-0002-3248-1801</orcidid></search><sort><creationdate>20190306</creationdate><title>Recovery of Gold from Chloride Solution by TEMPO-Oxidized Cellulose Nanofiber Adsorbent</title><author>Jafari, Shila ; 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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. 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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; MDPI - Multidisciplinary Digital Publishing Institute |
| subjects | Acidic oxides Adsorbents Adsorption Adsorptivity Aqueous solutions Cellulose Cellulose fibers Chloride Data recovery Endothermic reactions Equilibrium Experiments Ferric chloride Gold Hydrogels Leaching Metals Nanofibers Process parameters Sodium Sustainability |
| title | Recovery of Gold from Chloride Solution by TEMPO-Oxidized Cellulose Nanofiber Adsorbent |
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