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Title:Removal of copper from aqueous solutions with zeolites and possible treatment of exhaust materials
Authors:ID Zabukovec Logar, Nataša (Author)
ID Arčon, Iztok (Author)
ID Kovač, Janez (Author)
ID Popova, Margarita (Author)
Work type:Unknown
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
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.
Keywords:Cu2+ ion exchange, Total toluene oxidation, X-ray absorption spectroscopy, X-ray photoelectron spectroscopy, Zeolite
Year of publishing:2021
Number of pages:str.
Numbering:Vol. , no.
PID:20.500.12556/RUNG-6570 New window
COBISS.SI-ID:57116419 New window
ISSN on article:0009-286X
DOI:10.1002/cite.202000188 New window
Publication date in RUNG:03.06.2021
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Record is a part of a journal

Title:Chemie Ingenieur Technik
Shortened title:Chemieingenieurtech.
COBISS.SI-ID:19735 New window

Secondary language

Keywords:anorganska kemija, zeoliti, baker, oksidacija