Equilibrium and thermodynamic studies of Cu(II) removal by iron oxide modified sepiolite
This paper presents the adsorption of Cu(II) from aqueous solution by raw sepiolite (RS) and iron oxide-coated sepiolite (ICS) samples. Adsorption of Cu(II) by sepiolite samples was investigated as a function of the initial Cu(II) concentration, solution pH, ionic strength, temperature and the prese...
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| Veröffentlicht in: | Desalination 2010-11, Vol.262 (1), p.43-49 |
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| creator | Eren, E. Gumus, H. Ozbay, N. |
| description | This paper presents the adsorption of Cu(II) from aqueous solution by raw sepiolite (RS) and iron oxide-coated sepiolite (ICS) samples. Adsorption of Cu(II) by sepiolite samples was investigated as a function of the initial Cu(II) concentration, solution pH, ionic strength, temperature and the presence of an inorganic ligand (Cl
−, SO
4
2
− and HPO
4
2
−). Changes in the surface and structure were characterized by means of XRD, IR and XRF techniques. The Langmuir monolayer adsorption capacities of RS and ICS in 0.1
M NaNO
3 solution at 298
K were estimated to be 14.96 and 21.56
mg/g, respectively. ΔG, ΔH and ΔS were evaluated for RS and ICS to be −14.14
kJ/mol (at 298
K), 39.03
kJ/mol and 178
J/mol
K, and −16.09
kJ/mol (at 298
K), 32.99
kJ/mol and 165
J/mol
K, respectively. |
| doi_str_mv | 10.1016/j.desal.2010.05.039 |
| format | Article |
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−, SO
4
2
− and HPO
4
2
−). Changes in the surface and structure were characterized by means of XRD, IR and XRF techniques. The Langmuir monolayer adsorption capacities of RS and ICS in 0.1
M NaNO
3 solution at 298
K were estimated to be 14.96 and 21.56
mg/g, respectively. ΔG, ΔH and ΔS were evaluated for RS and ICS to be −14.14
kJ/mol (at 298
K), 39.03
kJ/mol and 178
J/mol
K, and −16.09
kJ/mol (at 298
K), 32.99
kJ/mol and 165
J/mol
K, respectively.</description><identifier>ISSN: 0011-9164</identifier><identifier>EISSN: 1873-4464</identifier><identifier>DOI: 10.1016/j.desal.2010.05.039</identifier><identifier>CODEN: DSLNAH</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Adsorption ; Applied sciences ; Chemical engineering ; Clay ; Copper ions ; Exact sciences and technology ; Iron ; Iron oxides ; Ligands ; Nanocomposites ; Nanomaterials ; Nanostructure ; Pollution ; Sepiolite ; Surface chemistry ; Thermodynamic</subject><ispartof>Desalination, 2010-11, Vol.262 (1), p.43-49</ispartof><rights>2010 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c365t-a366d88e3bcff1c9968386ce764c395740f0457a3856036044195a13495945fa3</citedby><cites>FETCH-LOGICAL-c365t-a366d88e3bcff1c9968386ce764c395740f0457a3856036044195a13495945fa3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.desal.2010.05.039$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>315,782,786,3554,27933,27934,46004</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=23270065$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Eren, E.</creatorcontrib><creatorcontrib>Gumus, H.</creatorcontrib><creatorcontrib>Ozbay, N.</creatorcontrib><title>Equilibrium and thermodynamic studies of Cu(II) removal by iron oxide modified sepiolite</title><title>Desalination</title><description>This paper presents the adsorption of Cu(II) from aqueous solution by raw sepiolite (RS) and iron oxide-coated sepiolite (ICS) samples. Adsorption of Cu(II) by sepiolite samples was investigated as a function of the initial Cu(II) concentration, solution pH, ionic strength, temperature and the presence of an inorganic ligand (Cl
−, SO
4
2
− and HPO
4
2
−). Changes in the surface and structure were characterized by means of XRD, IR and XRF techniques. The Langmuir monolayer adsorption capacities of RS and ICS in 0.1
M NaNO
3 solution at 298
K were estimated to be 14.96 and 21.56
mg/g, respectively. ΔG, ΔH and ΔS were evaluated for RS and ICS to be −14.14
kJ/mol (at 298
K), 39.03
kJ/mol and 178
J/mol
K, and −16.09
kJ/mol (at 298
K), 32.99
kJ/mol and 165
J/mol
K, respectively.</description><subject>Adsorption</subject><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>Clay</subject><subject>Copper ions</subject><subject>Exact sciences and technology</subject><subject>Iron</subject><subject>Iron oxides</subject><subject>Ligands</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Pollution</subject><subject>Sepiolite</subject><subject>Surface chemistry</subject><subject>Thermodynamic</subject><issn>0011-9164</issn><issn>1873-4464</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9kD1rHDEQhkVwIGcnvyCNGuOk2LO0-thVkSIc_jgwuEkgndBJIzLH7uos7Zrcv4-cMyldDTM87wzzEPKZszVnXF_v1wGKG9YtqxOm1kyYd2TF-040Ump5RlaMcd4YruUHcl7KvratEWJFft08LTjgLuMyUjcFOv-GPKZwnNyInpZ5CQiFpkg3y5ft9ivNMKZnN9DdkWJOE01_MACtCYwIgRY4YBpwho_kfXRDgU-v9YL8vL35sblvHh7vtpvvD40XWs2NE1qHvgex8zFyb4zuRa89dFp6YVQnWWRSdU70SjOhmZTcKMeFNMpIFZ24IFenvYecnhYosx2xeBgGN0Faiu102-q-ZispTqTPqZQM0R4yji4fLWf2RaPd238a7YtGy5StGmvq8nW_K94NMbvJY_kfbUXbMaZV5b6dOKjPPiNkWzzC5CFgBj_bkPDNO38BCNaIJA</recordid><startdate>20101115</startdate><enddate>20101115</enddate><creator>Eren, E.</creator><creator>Gumus, H.</creator><creator>Ozbay, N.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope></search><sort><creationdate>20101115</creationdate><title>Equilibrium and thermodynamic studies of Cu(II) removal by iron oxide modified sepiolite</title><author>Eren, E. ; Gumus, H. ; Ozbay, N.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-a366d88e3bcff1c9968386ce764c395740f0457a3856036044195a13495945fa3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Adsorption</topic><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>Clay</topic><topic>Copper ions</topic><topic>Exact sciences and technology</topic><topic>Iron</topic><topic>Iron oxides</topic><topic>Ligands</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Pollution</topic><topic>Sepiolite</topic><topic>Surface chemistry</topic><topic>Thermodynamic</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Eren, E.</creatorcontrib><creatorcontrib>Gumus, H.</creatorcontrib><creatorcontrib>Ozbay, N.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Desalination</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Eren, E.</au><au>Gumus, H.</au><au>Ozbay, N.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Equilibrium and thermodynamic studies of Cu(II) removal by iron oxide modified sepiolite</atitle><jtitle>Desalination</jtitle><date>2010-11-15</date><risdate>2010</risdate><volume>262</volume><issue>1</issue><spage>43</spage><epage>49</epage><pages>43-49</pages><issn>0011-9164</issn><eissn>1873-4464</eissn><coden>DSLNAH</coden><abstract>This paper presents the adsorption of Cu(II) from aqueous solution by raw sepiolite (RS) and iron oxide-coated sepiolite (ICS) samples. Adsorption of Cu(II) by sepiolite samples was investigated as a function of the initial Cu(II) concentration, solution pH, ionic strength, temperature and the presence of an inorganic ligand (Cl
−, SO
4
2
− and HPO
4
2
−). Changes in the surface and structure were characterized by means of XRD, IR and XRF techniques. The Langmuir monolayer adsorption capacities of RS and ICS in 0.1
M NaNO
3 solution at 298
K were estimated to be 14.96 and 21.56
mg/g, respectively. ΔG, ΔH and ΔS were evaluated for RS and ICS to be −14.14
kJ/mol (at 298
K), 39.03
kJ/mol and 178
J/mol
K, and −16.09
kJ/mol (at 298
K), 32.99
kJ/mol and 165
J/mol
K, respectively.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.desal.2010.05.039</doi><tpages>7</tpages></addata></record> |
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| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Adsorption Applied sciences Chemical engineering Clay Copper ions Exact sciences and technology Iron Iron oxides Ligands Nanocomposites Nanomaterials Nanostructure Pollution Sepiolite Surface chemistry Thermodynamic |
| title | Equilibrium and thermodynamic studies of Cu(II) removal by iron oxide modified sepiolite |
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