Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water
In this work, for the first time, the sorption behaviour of platinum and palladium on polyethylene microplastics (PE-MP) was studied. To simulate natural conditions, part of PE-MP was subjected to the ageing process in lake water under the influence of solar radiation. The original and aged PE-MP wa...
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2024-12-01
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| author | Sylwia Sajkowska Barbara Leśniewska |
| author_facet | Sylwia Sajkowska Barbara Leśniewska |
| author_sort | Sylwia Sajkowska |
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| description | In this work, for the first time, the sorption behaviour of platinum and palladium on polyethylene microplastics (PE-MP) was studied. To simulate natural conditions, part of PE-MP was subjected to the ageing process in lake water under the influence of solar radiation. The original and aged PE-MP was characterised using elemental analysis, FT-IR, SEM-EDX, and nitrogen porosimetry methods. The studies on Pt and Pd sorption on PE-MP were carried out in batch mode in natural lake water at pH 7.6. It was found that the ageing process led to the degradation of the surface of the PE-MP and the formation of a biofilm. The sorption process of Pt and Pd on PE-MP particles proceeds according to pseudo-second-order kinetics. A good fit of the experimental data to the Freundlich and Langmuir isotherm model indicates the mixed nature of Pt and Pd sorption on PE-MP. It was clearly indicated that Pt and Pd sorption from natural waters can occur on the surface of inert polyethylene particles, which can lead to the preconcentration of these elements, even from waters with a very low content, and transferring them over longer distances. This poses a threat to the health of living organisms and humans. |
| format | Article |
| id | doaj-art-d3d47ad9b8654bdcbb995900f4252402 |
| institution | DOAJ |
| issn | 1420-3049 |
| language | English |
| publishDate | 2024-12-01 |
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| spelling | doaj-art-d3d47ad9b8654bdcbb995900f42524022025-08-20T02:43:49ZengMDPI AGMolecules1420-30492024-12-012924598710.3390/molecules29245987Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural WaterSylwia Sajkowska0Barbara Leśniewska1Doctoral School, University of Bialystok, Ciołkowskiego 1K, 15-245 Białystok, PolandDepartment of Analytical and Inorganic Chemistry, Faculty of Chemistry, University of Bialystok, Ciołkowskiego 1K, 15-245 Bialystok, PolandIn this work, for the first time, the sorption behaviour of platinum and palladium on polyethylene microplastics (PE-MP) was studied. To simulate natural conditions, part of PE-MP was subjected to the ageing process in lake water under the influence of solar radiation. The original and aged PE-MP was characterised using elemental analysis, FT-IR, SEM-EDX, and nitrogen porosimetry methods. The studies on Pt and Pd sorption on PE-MP were carried out in batch mode in natural lake water at pH 7.6. It was found that the ageing process led to the degradation of the surface of the PE-MP and the formation of a biofilm. The sorption process of Pt and Pd on PE-MP particles proceeds according to pseudo-second-order kinetics. A good fit of the experimental data to the Freundlich and Langmuir isotherm model indicates the mixed nature of Pt and Pd sorption on PE-MP. It was clearly indicated that Pt and Pd sorption from natural waters can occur on the surface of inert polyethylene particles, which can lead to the preconcentration of these elements, even from waters with a very low content, and transferring them over longer distances. This poses a threat to the health of living organisms and humans.https://www.mdpi.com/1420-3049/29/24/5987PtPdaged PE-MPsorption kineticssorption isothermslake water |
| spellingShingle | Sylwia Sajkowska Barbara Leśniewska Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water Molecules Pt Pd aged PE-MP sorption kinetics sorption isotherms lake water |
| title | Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water |
| title_full | Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water |
| title_fullStr | Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water |
| title_full_unstemmed | Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water |
| title_short | Sorption of Platinum and Palladium on Polyethylene Microplastics in Natural Water |
| title_sort | sorption of platinum and palladium on polyethylene microplastics in natural water |
| topic | Pt Pd aged PE-MP sorption kinetics sorption isotherms lake water |
| url | https://www.mdpi.com/1420-3049/29/24/5987 |
| work_keys_str_mv | AT sylwiasajkowska sorptionofplatinumandpalladiumonpolyethylenemicroplasticsinnaturalwater AT barbaralesniewska sorptionofplatinumandpalladiumonpolyethylenemicroplasticsinnaturalwater |