Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling
In this study, four Brazilian clays (Bofe, Verde-lodo, commercial Fluidgel, and expanded commercial vermiculite) were evaluated for their adsorptive capacity and removal percentage in relation to different toxic metals (Ni 2+ , Cd 2+ , Zn 2+ , and Cu 2+ ). The best results were obtained by expanded...
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| creator | da Silva, Thiago Lopes da Costa, Talles Barcelos de Carvalho Neves, Henrique Santana da Silva, Meuris Gurgel Carlos Guirardello, Reginaldo Vieira, Melissa Gurgel Adeodato |
| description | In this study, four Brazilian clays (Bofe, Verde-lodo, commercial Fluidgel, and expanded commercial vermiculite) were evaluated for their adsorptive capacity and removal percentage in relation to different toxic metals (Ni
2+
, Cd
2+
, Zn
2+
, and Cu
2+
). The best results were obtained by expanded vermiculite, with cadmium removal reaching values of 95%. The most promising clay was modified by the sodification process, and the metal cadmium was used to evaluate the ion exchange process. The clays expanded vermiculite (EV) and VNa-sodified vermiculite were evaluated by equilibrium study at 25, 35, and 45 °C. At 25 °C, EV obtained a maximum adsorption capacity of 0.368 mmol/g and sodified vermiculite 0.480 mmol/g, which represents an improvement of 30.4% in modified clay capacity. At 45 °C, the sodified vermiculite reached 0.970 mmol/g adsorption capacity. The Langmuir, Redlich-Peterson Freundlich, and Dubinin-Raduskevich models were adjusted to the results. Langmuir provided the best fit among the models. The thermodynamic quantities (Δ
S
, Δ
H
, and Δ
G
) demonstrated that the process is spontaneous and endothermic and the metal is captured by physisorption and chemisorption in the studied temperature range. For the ion exchange equilibrium, the binary Langmuir and binary Langmuir–Freundlich models were adjusted to the expanded vermiculite and sodified vermiculite isotherms, respectively. Both models were predictive. Thermal analysis indicated good heat resistance even after material modification. The apparent and real densities demonstrated that after each treatment or contamination, the clayey material undergoes contraction in its structure. An improved efficiency of the adsorbent was found after sodification.
Graphical Abstract |
| doi_str_mv | 10.1007/s11356-024-34496-z |
| format | Article |
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2+
, Cd
2+
, Zn
2+
, and Cu
2+
). The best results were obtained by expanded vermiculite, with cadmium removal reaching values of 95%. The most promising clay was modified by the sodification process, and the metal cadmium was used to evaluate the ion exchange process. The clays expanded vermiculite (EV) and VNa-sodified vermiculite were evaluated by equilibrium study at 25, 35, and 45 °C. At 25 °C, EV obtained a maximum adsorption capacity of 0.368 mmol/g and sodified vermiculite 0.480 mmol/g, which represents an improvement of 30.4% in modified clay capacity. At 45 °C, the sodified vermiculite reached 0.970 mmol/g adsorption capacity. The Langmuir, Redlich-Peterson Freundlich, and Dubinin-Raduskevich models were adjusted to the results. Langmuir provided the best fit among the models. The thermodynamic quantities (Δ
S
, Δ
H
, and Δ
G
) demonstrated that the process is spontaneous and endothermic and the metal is captured by physisorption and chemisorption in the studied temperature range. For the ion exchange equilibrium, the binary Langmuir and binary Langmuir–Freundlich models were adjusted to the expanded vermiculite and sodified vermiculite isotherms, respectively. Both models were predictive. Thermal analysis indicated good heat resistance even after material modification. The apparent and real densities demonstrated that after each treatment or contamination, the clayey material undergoes contraction in its structure. An improved efficiency of the adsorbent was found after sodification.
Graphical Abstract</description><identifier>ISSN: 1614-7499</identifier><identifier>ISSN: 0944-1344</identifier><identifier>EISSN: 1614-7499</identifier><identifier>DOI: 10.1007/s11356-024-34496-z</identifier><identifier>PMID: 39098971</identifier><language>eng</language><publisher>Berlin/Heidelberg: Springer Berlin Heidelberg</publisher><subject>Adsorption ; Adsorptivity ; Aquatic Pollution ; Atmospheric Protection/Air Quality Control/Air Pollution ; Cadmium ; Chemisorption ; Clay ; Earth and Environmental Science ; Ecotoxicology ; Endothermic reactions ; Environment ; Environmental Chemistry ; Environmental Health ; Equilibrium ; Heat resistance ; Heat treatment ; Heavy metals ; Ion exchange ; Metals ; Research Article ; Thermal analysis ; Thermal resistance ; Thermodynamics ; Vermiculite ; Waste Water Technology ; Water Management ; Water Pollution Control ; Zinc</subject><ispartof>Environmental science and pollution research international, 2024-08, Vol.31 (38), p.50857-50873</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c171z-a1990af4f3d62797465a07d421ae4153a558b8c572d55cf30d5ad7f3f63072533</cites><orcidid>0000-0002-3487-799X</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s11356-024-34496-z$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s11356-024-34496-z$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/39098971$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>da Silva, Thiago Lopes</creatorcontrib><creatorcontrib>da Costa, Talles Barcelos</creatorcontrib><creatorcontrib>de Carvalho Neves, Henrique Santana</creatorcontrib><creatorcontrib>da Silva, Meuris Gurgel Carlos</creatorcontrib><creatorcontrib>Guirardello, Reginaldo</creatorcontrib><creatorcontrib>Vieira, Melissa Gurgel Adeodato</creatorcontrib><title>Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling</title><title>Environmental science and pollution research international</title><addtitle>Environ Sci Pollut Res</addtitle><addtitle>Environ Sci Pollut Res Int</addtitle><description>In this study, four Brazilian clays (Bofe, Verde-lodo, commercial Fluidgel, and expanded commercial vermiculite) were evaluated for their adsorptive capacity and removal percentage in relation to different toxic metals (Ni
2+
, Cd
2+
, Zn
2+
, and Cu
2+
). The best results were obtained by expanded vermiculite, with cadmium removal reaching values of 95%. The most promising clay was modified by the sodification process, and the metal cadmium was used to evaluate the ion exchange process. The clays expanded vermiculite (EV) and VNa-sodified vermiculite were evaluated by equilibrium study at 25, 35, and 45 °C. At 25 °C, EV obtained a maximum adsorption capacity of 0.368 mmol/g and sodified vermiculite 0.480 mmol/g, which represents an improvement of 30.4% in modified clay capacity. At 45 °C, the sodified vermiculite reached 0.970 mmol/g adsorption capacity. The Langmuir, Redlich-Peterson Freundlich, and Dubinin-Raduskevich models were adjusted to the results. Langmuir provided the best fit among the models. The thermodynamic quantities (Δ
S
, Δ
H
, and Δ
G
) demonstrated that the process is spontaneous and endothermic and the metal is captured by physisorption and chemisorption in the studied temperature range. For the ion exchange equilibrium, the binary Langmuir and binary Langmuir–Freundlich models were adjusted to the expanded vermiculite and sodified vermiculite isotherms, respectively. Both models were predictive. Thermal analysis indicated good heat resistance even after material modification. The apparent and real densities demonstrated that after each treatment or contamination, the clayey material undergoes contraction in its structure. An improved efficiency of the adsorbent was found after sodification.
Graphical Abstract</description><subject>Adsorption</subject><subject>Adsorptivity</subject><subject>Aquatic Pollution</subject><subject>Atmospheric Protection/Air Quality Control/Air Pollution</subject><subject>Cadmium</subject><subject>Chemisorption</subject><subject>Clay</subject><subject>Earth and Environmental Science</subject><subject>Ecotoxicology</subject><subject>Endothermic reactions</subject><subject>Environment</subject><subject>Environmental Chemistry</subject><subject>Environmental Health</subject><subject>Equilibrium</subject><subject>Heat resistance</subject><subject>Heat treatment</subject><subject>Heavy metals</subject><subject>Ion exchange</subject><subject>Metals</subject><subject>Research Article</subject><subject>Thermal analysis</subject><subject>Thermal resistance</subject><subject>Thermodynamics</subject><subject>Vermiculite</subject><subject>Waste Water Technology</subject><subject>Water Management</subject><subject>Water Pollution Control</subject><subject>Zinc</subject><issn>1614-7499</issn><issn>0944-1344</issn><issn>1614-7499</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kctu3CAYhVHVqJPbC3RRIXXTRZyAAWO6S6LcpEjZtGuEAc8wsmEGbCkzr9KXDXNJ2nSR1UHi-8-B_wDwFaNzjBC_SBgTVhWopAWhVFTF-hM4xBWmBadCfP7nPAFHKc0RKpEo-RcwIQKJWnB8CP5cmhTiYnDBQ-UN3Kh91jPlpxaGFg7h2WnY20F1CTYreBXV2nVOeag7tUo_twKT7ax-80jDaJxNm3G7HDPdRDf2Z3CY2dgHs_KqdzqdbdnGeRVX72MzYzvnpyfgoM2x9nSvx-D37c2v6_vi8enu4frysdCY43WhsBBItbQlpiq54LRiCnFDS6wsxYwoxuqm1oyXhjHdEmSYMrwlbUUQLxkhx-DHzncRw3K0aZC9S9p2nfI2jEkSVNeM0byzjH7_D52HMfr8ukzllVKBUZ2pckfpGFKKtpWL6Pr8T4mR3FQnd9XJXJ3cVifXeejb3npsemveRl67ygDZASlf5T3Fv9kf2L4A-VamoA</recordid><startdate>20240805</startdate><enddate>20240805</enddate><creator>da Silva, Thiago Lopes</creator><creator>da Costa, Talles Barcelos</creator><creator>de Carvalho Neves, Henrique Santana</creator><creator>da Silva, Meuris Gurgel Carlos</creator><creator>Guirardello, Reginaldo</creator><creator>Vieira, Melissa Gurgel Adeodato</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QL</scope><scope>7SN</scope><scope>7T7</scope><scope>7TV</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>K9.</scope><scope>M7N</scope><scope>P64</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-3487-799X</orcidid></search><sort><creationdate>20240805</creationdate><title>Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling</title><author>da Silva, Thiago Lopes ; da Costa, Talles Barcelos ; de Carvalho Neves, Henrique Santana ; da Silva, Meuris Gurgel Carlos ; Guirardello, Reginaldo ; Vieira, Melissa Gurgel Adeodato</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c171z-a1990af4f3d62797465a07d421ae4153a558b8c572d55cf30d5ad7f3f63072533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Adsorption</topic><topic>Adsorptivity</topic><topic>Aquatic Pollution</topic><topic>Atmospheric Protection/Air Quality Control/Air Pollution</topic><topic>Cadmium</topic><topic>Chemisorption</topic><topic>Clay</topic><topic>Earth and Environmental Science</topic><topic>Ecotoxicology</topic><topic>Endothermic reactions</topic><topic>Environment</topic><topic>Environmental Chemistry</topic><topic>Environmental Health</topic><topic>Equilibrium</topic><topic>Heat resistance</topic><topic>Heat treatment</topic><topic>Heavy metals</topic><topic>Ion exchange</topic><topic>Metals</topic><topic>Research Article</topic><topic>Thermal analysis</topic><topic>Thermal resistance</topic><topic>Thermodynamics</topic><topic>Vermiculite</topic><topic>Waste Water Technology</topic><topic>Water Management</topic><topic>Water Pollution Control</topic><topic>Zinc</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>da Silva, Thiago Lopes</creatorcontrib><creatorcontrib>da Costa, Talles Barcelos</creatorcontrib><creatorcontrib>de Carvalho Neves, Henrique Santana</creatorcontrib><creatorcontrib>da Silva, Meuris Gurgel Carlos</creatorcontrib><creatorcontrib>Guirardello, Reginaldo</creatorcontrib><creatorcontrib>Vieira, Melissa Gurgel Adeodato</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>Bacteriology Abstracts (Microbiology B)</collection><collection>Ecology Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Toxicology Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Algology Mycology and Protozoology Abstracts (Microbiology C)</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Environmental science and pollution research international</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>da Silva, Thiago Lopes</au><au>da Costa, Talles Barcelos</au><au>de Carvalho Neves, Henrique Santana</au><au>da Silva, Meuris Gurgel Carlos</au><au>Guirardello, Reginaldo</au><au>Vieira, Melissa Gurgel Adeodato</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling</atitle><jtitle>Environmental science and pollution research international</jtitle><stitle>Environ Sci Pollut Res</stitle><addtitle>Environ Sci Pollut Res Int</addtitle><date>2024-08-05</date><risdate>2024</risdate><volume>31</volume><issue>38</issue><spage>50857</spage><epage>50873</epage><pages>50857-50873</pages><issn>1614-7499</issn><issn>0944-1344</issn><eissn>1614-7499</eissn><abstract>In this study, four Brazilian clays (Bofe, Verde-lodo, commercial Fluidgel, and expanded commercial vermiculite) were evaluated for their adsorptive capacity and removal percentage in relation to different toxic metals (Ni
2+
, Cd
2+
, Zn
2+
, and Cu
2+
). The best results were obtained by expanded vermiculite, with cadmium removal reaching values of 95%. The most promising clay was modified by the sodification process, and the metal cadmium was used to evaluate the ion exchange process. The clays expanded vermiculite (EV) and VNa-sodified vermiculite were evaluated by equilibrium study at 25, 35, and 45 °C. At 25 °C, EV obtained a maximum adsorption capacity of 0.368 mmol/g and sodified vermiculite 0.480 mmol/g, which represents an improvement of 30.4% in modified clay capacity. At 45 °C, the sodified vermiculite reached 0.970 mmol/g adsorption capacity. The Langmuir, Redlich-Peterson Freundlich, and Dubinin-Raduskevich models were adjusted to the results. Langmuir provided the best fit among the models. The thermodynamic quantities (Δ
S
, Δ
H
, and Δ
G
) demonstrated that the process is spontaneous and endothermic and the metal is captured by physisorption and chemisorption in the studied temperature range. For the ion exchange equilibrium, the binary Langmuir and binary Langmuir–Freundlich models were adjusted to the expanded vermiculite and sodified vermiculite isotherms, respectively. Both models were predictive. Thermal analysis indicated good heat resistance even after material modification. The apparent and real densities demonstrated that after each treatment or contamination, the clayey material undergoes contraction in its structure. An improved efficiency of the adsorbent was found after sodification.
Graphical Abstract</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>39098971</pmid><doi>10.1007/s11356-024-34496-z</doi><tpages>17</tpages><orcidid>https://orcid.org/0000-0002-3487-799X</orcidid></addata></record> |
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| subjects | Adsorption Adsorptivity Aquatic Pollution Atmospheric Protection/Air Quality Control/Air Pollution Cadmium Chemisorption Clay Earth and Environmental Science Ecotoxicology Endothermic reactions Environment Environmental Chemistry Environmental Health Equilibrium Heat resistance Heat treatment Heavy metals Ion exchange Metals Research Article Thermal analysis Thermal resistance Thermodynamics Vermiculite Waste Water Technology Water Management Water Pollution Control Zinc |
| title | Adsorption and ion exchange of toxic metals by Brazilian clays: clay selection and studies of equilibrium, thermodynamics, and binary ion exchange modeling |
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