DC Field | Value | Language |
---|---|---|
dc.contributor.author | Anirudhan, TS | ko |
dc.contributor.author | Suchithra, Padmajan Sasikala | ko |
dc.date.accessioned | 2022-12-26T09:00:43Z | - |
dc.date.available | 2022-12-26T09:00:43Z | - |
dc.date.created | 2022-12-26 | - |
dc.date.issued | 2010-07 | - |
dc.identifier.citation | INDIAN JOURNAL OF CHEMICAL TECHNOLOGY, v.17, no.4, pp.247 - 259 | - |
dc.identifier.issn | 0971-457X | - |
dc.identifier.uri | http://hdl.handle.net/10203/303730 | - |
dc.description.abstract | The adsorption of heavy metals (Cu(II), Zn(II) and Cd(II)) from aqueous solutions with tannin-immobilized calcined hydrotalcite (TA-HTC) was studied using batch experiment technique. The surface characterizations of the adsorbent were investigated. Kinetic modeling of removal of metals was done using a pseudo-second-order rate expression. The intraparticle mass transfer diffussion of metals on adsorbent represented the rate-limiting step, with the activation energy of 27 05, 24 22 and 21.96 kJ/mol for Cu(II), Zn(II) and Cd(II), respectively Experimental results showed that the adsorption of metals was selective to be in the order of Cu(II)>Zn(II)>Cd(II). Equilibrium isotherm data for metal ions were analyzed by the Langmuir, Freundlich, Dubinin-Radushkevich and Scatchard equations. The Langmuir adsorption isotherm described the adsorption data very well at all studied temperatures. Thermodynamic parameters such as standard enthalpy (Delta H*), standard entropy (Delta S*), standard free energy (Delta G*), activation energy and isosteric enthalpy and entropy were calculated and the results are discussed in detail. | - |
dc.language | English | - |
dc.publisher | NATL INST SCIENCE COMMUNICATION-NISCAIR | - |
dc.title | Equilibrium, kinetic and thermodynamic modeling for the adsorption of heavy metals onto chemically modified hydrotalcite | - |
dc.type | Article | - |
dc.identifier.wosid | 000280935200001 | - |
dc.identifier.scopusid | 2-s2.0-77955262938 | - |
dc.type.rims | ART | - |
dc.citation.volume | 17 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 247 | - |
dc.citation.endingpage | 259 | - |
dc.citation.publicationname | INDIAN JOURNAL OF CHEMICAL TECHNOLOGY | - |
dc.contributor.nonIdAuthor | Anirudhan, TS | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Hydrotalcite | - |
dc.subject.keywordAuthor | Heavy metals | - |
dc.subject.keywordAuthor | Adsorption | - |
dc.subject.keywordAuthor | Isotherms | - |
dc.subject.keywordAuthor | Kinetics | - |
dc.subject.keywordAuthor | Thermodynamics | - |
dc.subject.keywordPlus | LAYERED DOUBLE HYDROXIDES | - |
dc.subject.keywordPlus | AQUEOUS-SOLUTIONS | - |
dc.subject.keywordPlus | IONS REMOVAL | - |
dc.subject.keywordPlus | CU(II) | - |
dc.subject.keywordPlus | CADMIUM | - |
dc.subject.keywordPlus | ZN(II) | - |
dc.subject.keywordPlus | ZN | - |
dc.subject.keywordPlus | SORPTION | - |
dc.subject.keywordPlus | CD(II) | - |
dc.subject.keywordPlus | COPPER | - |
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