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master's thesis
Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina
diplomski rad
2021. urn:nbn:hr:167:517996
Prnjak, Petra
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Prnjak, P. (2021). Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad (Master's thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:517996

Prnjak, Petra. "Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:167:517996

Prnjak, Petra. "Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad." Master's thesis, University of Split, Faculty of Chemistry and Technology, 2021. https://urn.nsk.hr/urn:nbn:hr:167:517996

Prnjak, P. (2021). 'Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad', Master's thesis, University of Split, Faculty of Chemistry and Technology, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:517996

Prnjak P. Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad [Master's thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2021 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:167:517996

P. Prnjak, "Priprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad", Master's thesis, University of Split, Faculty of Chemistry and Technology, Split, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:167:517996

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Metadata
TitlePriprava i karakterizacija Fe(III)-modificiranog zeolita-sorbensa za uklanjanje Hg(II) iz vodenih otopina : diplomski rad
Title (english)Preparation and characterization of Fe(III)-modified zeolite-sorbent for Hg(II) removal from aqueous solutions : diploma thesis
AuthorPetra Prnjak
MentorMarin Ugrina (mentor)
Committee memberMarin Ugrina (predsjednik povjerenstva)
Committee memberIvona Nuić (član povjerenstva)
Committee memberMaša Buljac (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2021-10-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Provedena je kemijska modifikacija prirodnog zeolita porijeklom iz Vranjske Banje, Srbija s vodenom otopinom Fe(NO 3 ) 3 u acetatnom puferu pri pH = 3,6 te s otopinama NaOH i NaNO 3 . Za detaljnu komparativnu mineralošku i fizikalno-kemijsku karakterizaciju prirodnog i Fe(III)-modificiranog zeolita korišteni su klasična kemijska analiza, kisela i bazična svojstva određena Bohemovom metodom, kemijsko ponašanje pri različitim pH o vrijednostima, zeta potencijal pri različitim pH o vrijednostima, specifična površina, rendgenska difrakcijska analiza praškastog uzorka (XRPD), pretražna elektronska mikroskopija s energijsko disperzivnom rendgenskom spektroskopijom (SEM-EDS), infracrvena spektroskopija s Fourierovom transformacijom (FTIR) kao i termogravimetrijska analiza (TG-DTG) korišteni su. Modifikacijom nije došlo do promjena u strukturi i mineraloškom sastavu zeolita, a povećao se volumen pora i količina natrijevih iona kao rezultat ionske izmjene i neutralizacije negativnog naboja nastalog tijekom modifikacije. Dobiveni Fe(III)-modificirani zeolit pokazao je gotovo dvostruko veći kapacitet vezivanja Hg(II) u odnosu na prirodni, što opravdava metodu modifikacije prirodnog zeolita.
Abstract (english)
Chemical modification of natural zeolite originated from the Vranjska Banja, Serbia deposit has been performed with the aqueous solution of Fe(NO 3 ) 3 at pH = 3.6 and with NaOH and NaNO 3 solutions. For detailed comparative mineralogical and physico-chemical characterization of natural and Fe(III)-modified zeolite the chemical analysis, acid and basic properties determined by Bohem’s method, chemical behavior at different pH o values, zeta potential, specific surface area, X-ray powder diffraction (XRPD), scanning electron microscopy with energy-dispersive X-ray analysis (SEM- EDS), Fourier transform infrared spectroscopy (FTIR), as well as thermogravimetry (TG-DTG) were used. The modification did not cause changes in the structure and mineralogical composition of the zeolite, but it increased the pore volume and the amount of sodium as a result of ion exchange and neutralization of the negative charge created during the modification. The obtained Fe(III)-modified zeolite has shown almost twice higher sorption capacity for Hg(II) compared to natural one, which justifies the method of modification of natural zeolite.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:517996
Study programmeTitle: Chemical Technology; specializations in: Materials, Environmental Protection, Mediteranean Cultures, Materials and Environmental protection
Course: Environmental Protection
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
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Created on2022-01-17 09:40:42