Açık Akademik Arşiv Sistemi

Sorption of Pt(IV) ions on poly(m-aminobenzoic acid) chelating polymer: Equilibrium, kinetic and thermodynamic studies

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dc.rights.license Bronze
dc.date.accessioned 2021-06-03T08:20:36Z
dc.date.available 2021-06-03T08:20:36Z
dc.date.issued 2020
dc.identifier.issn 2523-3963
dc.identifier.uri www.doi.org/10.1007/s42452-020-03692-0
dc.identifier.uri https://hdl.handle.net/20.500.12619/95215
dc.description Bu yayın 06.11.1981 tarihli ve 17506 sayılı Resmî Gazete’de yayımlanan 2547 sayılı Yükseköğretim Kanunu’nun 4/c, 12/c, 42/c ve 42/d maddelerine dayalı 12/12/2019 tarih, 543 sayılı ve 05 numaralı Üniversite Senato Kararı ile hazırlanan Sakarya Üniversitesi Açık Bilim ve Açık Akademik Arşiv Yönergesi gereğince açık akademik arşiv sistemine açık erişim olarak yüklenmiştir.
dc.description.abstract In this work, poly(m-aminobenzoic acid) (PABA) chelating polymer was synthesized and its sorption behaviors for Pt(IV) ions have been investigated. The PABA polymer was prepared by the reaction of m-aminobenzoic acid with ammonium peroxydisulfate. Fourier transform-infrared spectroscopy (FT-IR), thermal analysis (TG and DTA), field emission-scanning electron microscopy (FE-SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and surface porosity analytical methods were used in the characterization of the polymer. The FE-SEM images showed that the particles of the synthesized PABA polymer were about 2-10 mu m. The PABA polymer is thermally stable up to 320 degrees C. The zero charge point of the polymer was found at pH 3.50. Batch adsorption experiments were used to examine the effects of pH, initial Pt(IV) concentration, contact time and temperature. The best adsorption values were obtained at pH 4, in which is above the zero charge point of the polymer. The equilibrium, kinetics and thermodynamics of Pt(IV) adsorption on the PABA polymer were examined. The Pt(IV) maximum adsorption capacity of the polymer is 2362 mu g/g. The adsorption kinetic data fitted best to pseudo-second order kinetic model. The calculations with intra-particle diffusion and the Elovich models showed that the adsorption was controlled by intra-particle diffusion and chemisorption. The adsorption data fitted well to the Langmuir isotherm. It was found that the adsorption followed the pseudo-second-order kinetic model. In the thermodynamic calculations, the Gibbs free energies (Delta G degrees: (-10.98)-(-17.38) kJ/mol), the enthalpy (Delta H degrees:70.07 kJ/mol) and the entropy (Delta S degrees: 215.3 kJ/mol) change values of the adsorption were calculated. The column adsorption-desorption and reusability studies of the PABA polymer were also performed. The results showed that Pt(IV) sorption on the PABA polymer is endothermic and chemical adsorption process which is governed by both ionic interaction and chelating mechanisms.
dc.description.sponsorship Commission of the Scientific Research Projects of Sakarya University [BAPK FBYL TEZ 2017-50-01-057]
dc.language English
dc.language.iso İngilizce
dc.publisher SPRINGER INTERNATIONAL PUBLISHING AG
dc.relation.isversionof 10.1007/s42452-020-03692-0
dc.rights info:eu-repo/semantics/openAccess
dc.subject AQUEOUS-SOLUTIONS
dc.subject POLY(3-AMINOBENZOIC ACID)
dc.subject ADSORPTION PROPERTIES
dc.subject CORROSION PROTECTION
dc.subject PRECIOUS METALS
dc.subject ANION-EXCHANGE
dc.subject PLATINUM
dc.subject RECOVERY
dc.subject SEPARATION
dc.subject PALLADIUM
dc.subject Platinum(IV) ions
dc.subject Pol(m-aminobenzoic acid)
dc.subject Adsorption
dc.subject Chelating polymer
dc.title Sorption of Pt(IV) ions on poly(m-aminobenzoic acid) chelating polymer: Equilibrium, kinetic and thermodynamic studies
dc.type Article
dc.identifier.volume 2
dc.relation.journal SN APPLIED SCIENCES
dc.identifier.issue 11
dc.identifier.wos WOS:000585317100002
dc.identifier.doi 10.1007/s42452-020-03692-0
dc.identifier.eissn 2523-3971
dc.contributor.author Ozturk, Tugrul
dc.contributor.author Gulfen, Mustafa
dc.contributor.author Ozdemir, Abdil
dc.relation.publicationcategory Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı


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