Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities
The presence of pesticides in our environment is a consequence of intensive industrial and civilizational development, necessitating the search for effective and safe methods to remove them. We suggest utilizing zeolite X and a zeolite-carbon composite, obtained through the chemical transformation o...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-10-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023077800 |
| _version_ | 1797646553507168256 |
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| author | Magdalena Andrunik Mateusz Skalny Marta Gajewska Mateusz Marzec Tomasz Bajda |
| author_facet | Magdalena Andrunik Mateusz Skalny Marta Gajewska Mateusz Marzec Tomasz Bajda |
| author_sort | Magdalena Andrunik |
| collection | DOAJ |
| description | The presence of pesticides in our environment is a consequence of intensive industrial and civilizational development, necessitating the search for effective and safe methods to remove them. We suggest utilizing zeolite X and a zeolite-carbon composite, obtained through the chemical transformation of fly ash, as pesticide sorbents. To increase the sorption efficiency of 2,4-dichlorophenoxyacetic acid (2,4-D), 2-methyl-4-chlorophenoxyacetic acid (MCPA), carbendazim, and simazine, we functionalized the zeolite materials with cationic (hexadecyltrimethylammonium) and nonionic (Triton X-100) surfactants. We used transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric/differential thermal analysis (TG/DTA) and point of zero charge (pHpzc) analysis to characterize the functionalized sorbent materials. Our results indicate that cationic surfactants significantly enhance the adsorption of 2,4-D and MCPA. In contrast, carbendazim and simazine exhibit maximum sorption on the unmodified zeolite-carbon composite. The sorption mechanism is intricate, with physical sorption predominating, primarily due to electrostatic interactions between the protonated binding sites of the adsorbents and the negatively charged pesticide molecules. Regeneration tests demonstrated that ethanol is the most effective in regenerating zeolite-carbon composite with adsorbed MCPA and 2,4-D, while thermal regeneration was not possible. Adsorbents with simazine and carbendazim can be regenerated using both thermal and ethanol methods, but the thermal regeneration of zeolite with adsorbed simazine is more efficient. Utilizing functionalized zeolite materials obtained from industrial waste, such as fly ash, could provide an efficient way to remove pesticides from the environment. |
| first_indexed | 2024-03-11T15:03:18Z |
| format | Article |
| id | doaj.art-f8de0932e88445d7af9e6d654ba6b4a5 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-11T15:03:18Z |
| publishDate | 2023-10-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-f8de0932e88445d7af9e6d654ba6b4a52023-10-30T06:06:37ZengElsevierHeliyon2405-84402023-10-01910e20572Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilitiesMagdalena Andrunik0Mateusz Skalny1Marta Gajewska2Mateusz Marzec3Tomasz Bajda4AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicz 30 Ave, 30-059, Krakow, Poland; Corresponding author. AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Krakow, Poland.AGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicz 30 Ave, 30-059, Krakow, PolandAGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, A. Mickiewicz 30 Ave, 30-059, Krakow, PolandAGH University of Science and Technology, Academic Centre for Materials and Nanotechnology, A. Mickiewicz 30 Ave, 30-059, Krakow, PolandAGH University of Science and Technology, Faculty of Geology, Geophysics and Environmental Protection, A. Mickiewicz 30 Ave, 30-059, Krakow, Poland; Corresponding author. AGH University of Science and Technology, al. Mickiewicza 30, 30-059, Krakow, Poland.The presence of pesticides in our environment is a consequence of intensive industrial and civilizational development, necessitating the search for effective and safe methods to remove them. We suggest utilizing zeolite X and a zeolite-carbon composite, obtained through the chemical transformation of fly ash, as pesticide sorbents. To increase the sorption efficiency of 2,4-dichlorophenoxyacetic acid (2,4-D), 2-methyl-4-chlorophenoxyacetic acid (MCPA), carbendazim, and simazine, we functionalized the zeolite materials with cationic (hexadecyltrimethylammonium) and nonionic (Triton X-100) surfactants. We used transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), thermogravimetric/differential thermal analysis (TG/DTA) and point of zero charge (pHpzc) analysis to characterize the functionalized sorbent materials. Our results indicate that cationic surfactants significantly enhance the adsorption of 2,4-D and MCPA. In contrast, carbendazim and simazine exhibit maximum sorption on the unmodified zeolite-carbon composite. The sorption mechanism is intricate, with physical sorption predominating, primarily due to electrostatic interactions between the protonated binding sites of the adsorbents and the negatively charged pesticide molecules. Regeneration tests demonstrated that ethanol is the most effective in regenerating zeolite-carbon composite with adsorbed MCPA and 2,4-D, while thermal regeneration was not possible. Adsorbents with simazine and carbendazim can be regenerated using both thermal and ethanol methods, but the thermal regeneration of zeolite with adsorbed simazine is more efficient. Utilizing functionalized zeolite materials obtained from industrial waste, such as fly ash, could provide an efficient way to remove pesticides from the environment.http://www.sciencedirect.com/science/article/pii/S2405844023077800SurfactantModificationFly-ashRemediationOrganic compounds |
| spellingShingle | Magdalena Andrunik Mateusz Skalny Marta Gajewska Mateusz Marzec Tomasz Bajda Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities Heliyon Surfactant Modification Fly-ash Remediation Organic compounds |
| title | Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities |
| title_full | Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities |
| title_fullStr | Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities |
| title_full_unstemmed | Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities |
| title_short | Comparison of pesticide adsorption efficiencies of zeolites and zeolite-carbon composites and their regeneration possibilities |
| title_sort | comparison of pesticide adsorption efficiencies of zeolites and zeolite carbon composites and their regeneration possibilities |
| topic | Surfactant Modification Fly-ash Remediation Organic compounds |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023077800 |
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