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Title:Optimizacija sinteze magnetno zeolitnih nanokompozitov za odstranjevanje mikro in nanoplastike iz vode
Authors:ID Miklič, Aljaž (Author)
ID Stergar, Janja (Mentor) More about this mentor... New window
ID Kristl, Matjaž (Comentor)
Files:.pdf UN_Miklic_Aljaz_2026.pdf (8,17 MB)
MD5: 7F8AE2A3561ACD271A002061C3DFD11E
 
Language:Slovenian
Work type:Bachelor thesis/paper
Typology:2.11 - Undergraduate Thesis
Organization:FKKT - Faculty of Chemistry and Chemical Engineering
Abstract:V diplomskem delu smo preučevali pripravo magnetno zeolitnih nanokompozitov na osnovi zeolita 4A in železovih oksidov. Namen dela je bil optimizirati in situ sintezo kompozitov ter ugotoviti, kako razmerje med zeolitom in magnetno fazo ter čas sidranja Fe3+ ionov vplivata na lastnosti nastalih materialov. Magnetno zeolitni nanokompoziti so zanimivi predvsem zaradi združevanja porozne strukture in adsorpcijskih lastnosti zeolita z možnostjo magnetnega ločevanja. Vzorce smo pripravili z metodo koprecipitacije železovih ionov v prisotnosti zeolita 4A. Pri sintezah smo spreminjali masno razmerje med zeolitom in magnetnimi delci ter čas sidranja Fe3+ ionov v zeolit. Sintetizirane vzorce smo karakterizirali s termogravimetrično analizo, Fourierjevo transformirano infrardečo spektroskopijo, dinamičnim sipanjem svetlobe, BET-analizo in vrstično elektronsko mikroskopijo. S termogravimetrično analizo smo ugotovili, da so bili vsi vzorci pri višjih temperaturah termično stabilni, pri nižjih pa je prihajalo predvsem do izgube adsorbirane vode in drugih hlapnih komponent. FTIR spektri so potrdili prisotnost zeolitnega aluminosilikatnega ogrodja in magnetne železove oksidne faze. DLS meritve so pokazale agregacijo delcev v suspenziji, BET analiza je pri izbranem vzorcu potrdila ohranjeno poroznost in relativno veliko specifično površino, SEM analiza pa je pokazala razlike v morfologiji delcev in stopnji aglomeracije.
Keywords:magnetno-zeolitni nanodelci, magnetni nanodelci, karakterizacija, optimizacija, čiščenje vode
Place of publishing:Maribor
Year of publishing:2026
PID:20.500.12556/DKUM-99654 New window
Publication date in DKUM:24.09.2026
Views:81
Downloads:4
Metadata:XML DC-XML DC-RDF
Categories:KTFMB - FKKT
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:29.08.2026

Secondary language

Language:English
Title:Optimization of the synthesis of magnetic zeolite nanocomposites for the removal of micro and nanoplastics from water
Abstract:In this thesis, we investigated the preparation of magnetic zeolite nanocomposites based on zeolite 4A and iron oxides. The study aimed to optimize the in situ synthesis of the composites and to determine how the mass ratio between zeolite and the magnetic phase, as well as the anchoring time of Fe3+ ions, affects the properties of the resulting materials. Magnetic zeolite nanocomposites are of particular interest due to the combination of the porous structure and adsorption properties of zeolite with the possibility of magnetic separation. The samples were prepared using the coprecipitation method of iron ions in the presence of zeolite 4A. During the syntheses, the mass ratio between zeolite and magnetic particles and the anchoring time of Fe3+ ions with the zeolite were varied. The synthesized samples were characterized using thermogravimetric analysis, Fourier-transform infrared spectroscopy, dynamic light scattering, BET analysis and scanning electron microscopy. Thermogravimetric analysis showed that all samples were thermally stable at higher temperatures, whereas at lower temperatures, the main loss was of adsorbed water and other volatile components. The FTIR spectra confirmed the presence of the zeolitic aluminosilicate framework and the magnetic iron oxide phase. DLS measurements showed particle aggregation in the suspension, while BET analysis of the selected sample confirmed the preservation of porosity and a relatively high specific surface area, while SEM analysis revealed differences in particle morphology and the degree of agglomeration.
Keywords:magnetic-zeolitic nanoparticles, magnetic nanoparticles, characterization, optimization, water treatment


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