Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies
This paper estimates the suitability of the strongly basic anion exchangers, Dowex PSR2 and Dowex PSR3, as sorbents of nickel ions in aqueous solutions. These actions are aimed at searching for new solutions due to the growing discharge of nickel into wastewaters, primarily due to its addition to st...
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MDPI AG
2023-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/2/644 |
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| author | Justyna Bąk Weronika Sofińska-Chmiel Maria Gajewska Paulina Malinowska Dorota Kołodyńska |
| author_facet | Justyna Bąk Weronika Sofińska-Chmiel Maria Gajewska Paulina Malinowska Dorota Kołodyńska |
| author_sort | Justyna Bąk |
| collection | DOAJ |
| description | This paper estimates the suitability of the strongly basic anion exchangers, Dowex PSR2 and Dowex PSR3, as sorbents of nickel ions in aqueous solutions. These actions are aimed at searching for new solutions due to the growing discharge of nickel into wastewaters, primarily due to its addition to steel. The nickel sorption experiments were conducted under static conditions and resulted in the optimization of pH, phase contact time, initial solution concentration, and temperature. The next step was to calculate the kinetic, isothermal, and thermodynamic parameters. Moreover, the ion exchangers were characterized by means of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and CHN elemental analysis. It was found that the sorption process was most effective at pH 6 after 240 min and at the temperature of 293 K. The values of the thermodynamic parameters revealed that the adsorption was exothermic and spontaneous. The physicochemical analyses combined with the experimental research enabled determination of the sorption mechanism of Ni(II) ions. |
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| id | doaj.art-cc8548a26e114b7184fa8f8cbe09265b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T11:50:52Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
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| spelling | doaj.art-cc8548a26e114b7184fa8f8cbe09265b2023-11-30T23:16:10ZengMDPI AGMaterials1996-19442023-01-0116264410.3390/ma16020644Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic StudiesJustyna Bąk0Weronika Sofińska-Chmiel1Maria Gajewska2Paulina Malinowska3Dorota Kołodyńska4Department of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, PolandAnalytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 3, 20-031 Lublin, PolandAnalytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 3, 20-031 Lublin, PolandAnalytical Laboratory, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie Skłodowska University, Maria Curie Skłodowska Sq. 3, 20-031 Lublin, PolandDepartment of Inorganic Chemistry, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Skłodowska University, Maria Curie-Skłodowska Sq. 2, 20-031 Lublin, PolandThis paper estimates the suitability of the strongly basic anion exchangers, Dowex PSR2 and Dowex PSR3, as sorbents of nickel ions in aqueous solutions. These actions are aimed at searching for new solutions due to the growing discharge of nickel into wastewaters, primarily due to its addition to steel. The nickel sorption experiments were conducted under static conditions and resulted in the optimization of pH, phase contact time, initial solution concentration, and temperature. The next step was to calculate the kinetic, isothermal, and thermodynamic parameters. Moreover, the ion exchangers were characterized by means of Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, and CHN elemental analysis. It was found that the sorption process was most effective at pH 6 after 240 min and at the temperature of 293 K. The values of the thermodynamic parameters revealed that the adsorption was exothermic and spontaneous. The physicochemical analyses combined with the experimental research enabled determination of the sorption mechanism of Ni(II) ions.https://www.mdpi.com/1996-1944/16/2/644XPS spectroscopyFTIR spectroscopysorptionion exchangersDowexnickel ions |
| spellingShingle | Justyna Bąk Weronika Sofińska-Chmiel Maria Gajewska Paulina Malinowska Dorota Kołodyńska Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies Materials XPS spectroscopy FTIR spectroscopy sorption ion exchangers Dowex nickel ions |
| title | Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies |
| title_full | Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies |
| title_fullStr | Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies |
| title_full_unstemmed | Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies |
| title_short | Determination of the Ni(II) Ions Sorption Mechanism on Dowex PSR2 and Dowex PSR3 Ion Exchangers Based on Spectroscopic Studies |
| title_sort | determination of the ni ii ions sorption mechanism on dowex psr2 and dowex psr3 ion exchangers based on spectroscopic studies |
| topic | XPS spectroscopy FTIR spectroscopy sorption ion exchangers Dowex nickel ions |
| url | https://www.mdpi.com/1996-1944/16/2/644 |
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