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undergraduate thesis
Sinteza nanočestica TiO2 sol-gel metodom
završni rad
2023. urn:nbn:hr:167:169826
Duvnjak, Antea
University of Split
Faculty of Chemistry and Technology
Division of Engineering and Chemistry

Cite this document

Duvnjak, A. (2023). Sinteza nanočestica TiO2 sol-gel metodom : završni rad (Undergraduate thesis). Split: University of Split, Faculty of Chemistry and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:167:169826

Duvnjak, Antea. "Sinteza nanočestica TiO2 sol-gel metodom : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:169826

Duvnjak, Antea. "Sinteza nanočestica TiO2 sol-gel metodom : završni rad." Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, 2023. https://urn.nsk.hr/urn:nbn:hr:167:169826

Duvnjak, A. (2023). 'Sinteza nanočestica TiO2 sol-gel metodom : završni rad', Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, accessed 19 November 2024, https://urn.nsk.hr/urn:nbn:hr:167:169826

Duvnjak A. Sinteza nanočestica TiO2 sol-gel metodom : završni rad [Undergraduate thesis]. Split: University of Split, Faculty of Chemistry and Technology; 2023 [cited 2024 November 19] Available at: https://urn.nsk.hr/urn:nbn:hr:167:169826

A. Duvnjak, "Sinteza nanočestica TiO2 sol-gel metodom : završni rad", Undergraduate thesis, University of Split, Faculty of Chemistry and Technology, Split, 2023. Available at: https://urn.nsk.hr/urn:nbn:hr:167:169826

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Metadata
TitleSinteza nanočestica TiO2 sol-gel metodom : završni rad
Title (english)Synthesis of TiO2 nanopartlices by sol-gel method : bachelor thesis
AuthorAntea Duvnjak
MentorDražan Jozić (mentor)
Committee memberDamir Barbir (predsjednik povjerenstva)
Committee memberMiće Jakić (član povjerenstva)
Committee memberDražan Jozić (član povjerenstva)
GranterUniversity of Split
Faculty of Chemistry and Technology
(Division of Engineering and Chemistry)
Split
Defense date and country2023-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Istraživanja u ovom radu usmjerena su na sol-gel sintezu nanostrukturiranih čestica TiO 2 te karakterizaciju istih. Kao izvor titana korišten je titanijev n-butoksid ( Ti[O(CH 2 ) 3 CH 3 ] 4 ), a kao otapalo 96%-tni etanol odnosno apsolutni etanol uz dodatak HCl odnosno HNO 3 . Sinteze su provedene pri sobnoj temperaturi uz konstantno miješanje u trajanju od 4 sata. Kruta faza iz pripravljenih suspenzija je separirana od tekuće faze i osušena pri temperaturi od 80°C u trajanju od 1 odnosno 2 sata. Osušeni prah je zatim kalciniran pri temperaturi od 450°C u trajanju od 3 sata. Pripravljeni uzorci su karakterizirani difrakcijom rendgenskih zraka na polikristalnim uzorcima (XRD), infracrvenom spektroskopijom s Fourierovom transformacijom (FT-IR) te pretražnom elektronskom mikroskopijom (SEM). Rezultati istraživanja ukazuju da nakon provedenog sušenja pri 80 o C u uzorku D dolazi do kristalizacije strukturno uređenog TiO 2 u formi anatasa, u ostalim uzorcima produkt sol-gel reakcije je produkt koji nema strukturnu uređenost dugog dosega što ukazuje na amorfnu strukturu materijala. Nakon provedene kalcinacije pri 450 o C u trajanju od 3 sata u uzorku D dolazi do kristalizacije dvije strukturno uređene forme TiO 2 i to anatasa i brukita dok u ostalim uzorcima kristalizira čisti TiO 2 u formi anatasa.
Abstract (english)
Research in this work is focused on sol-gel synthesis of nanostructured TiO 2 particles and their characterization. Titanium n-butoxide ( Ti[O(CH 2 ) 3 CH 3 ] 4 ) was used as a source of titanium, and 96% ethanol or absolute ethanol with the addition of HCl or HNO 3 . The syntheses were carried out at room temperature with constant stirring for 4 hours. Solid phase from the obtained milky suspension were separated and dried at a temperature of 80°C for 1 or 2 hours. The dried powder was then calcined at a temperature of 450°C for 3 hours. The prepared samples were characterized by X-ray diffraction on polycrystalline samples (XRD), Fourier transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The research results indicate that after drying at 80 o C in sample D, have a structurally ordered phase of TiO 2 which crystallizes in the form of anatase, in other samples the product of the sol-gel reaction is a product which does not have a long-range structural order, what suggest on the amorphous structure. After calcination at 450 o C for 3 hours in sample D, two structurally ordered forms of TiO 2 crystallize, namely anatase and brookite, while pure TiO 2 crystallizes in the form of anatase in the other samples
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:167:169826
Study programmeTitle: Chemical Technology; specializations in: Chemical Engineering, Environmental Protection
Course: Chemical Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
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Created on2023-11-14 08:40:07