| Title: | Removal of copper from aqueous solutions with zeolites and possible treatment of exhaust materials |
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| Authors: | ID Zabukovec Logar, Nataša (Author)
ID Arčon, Iztok (Author)
ID Kovač, Janez (Author)
ID Popova, Margarita (Author) |
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| Files: |  https://onlinelibrary.wiley.com/doi/10.1002/cite.202000188
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | The mechanism of Cu2+ loading into commercially available natural HEU-type and synthetic LTA-type zeolites for their
possible use in environmental processes, such as water and air treatment applications, was studied. Elemental analysis,
SEM/EDXS, XRD, XAS and XPS analyses revealed 4-fold coordination of Cu2+ cations with oxygen atoms in the pores, a
predominant location of copper atoms on the surface of crystallites and retained crystallinity of zeolites throughout the
processes. The post-treatment of Cu2+-loaded samples with HCl and/or NaCl solutions confirmed the predominantly
reversible sorption of copper on zeolites from aqueous solutions by ion-exchange mechanism and, therefore, excellent
regeneration possibilities for both types of zeolites. Furthermore, with the calcination of exhaust metal-loaded zeolites,
catalysts for total toluene oxidation reaction, as a model VOC pollutant, were obtained. |
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| Keywords: | Cu2+ ion exchange, Total toluene oxidation, X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, Zeolite |
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| Year of publishing: | 2021 |
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| Number of pages: | str. |
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| Numbering: | Vol. , no. |
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| PID: | 20.500.12556/RUNG-6570  |
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| COBISS.SI-ID: | 57116419 |
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| UDC: | 546 |
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| ISSN on article: | 0009-286X |
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| DOI: | 10.1002/cite.202000188 |
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| NUK URN: | URN:SI:UNG:REP:ZDSMU1CQ |
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| Publication date in RUNG: | 03.06.2021 |
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| Views: | 1945 |
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| Downloads: | 153 |
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