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master's thesis
2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. urn:nbn:hr:149:536006
Terzin, Andrej
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

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Terzin, A. (2022). 2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:536006

Terzin, Andrej. "2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:536006

Terzin, Andrej. "2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2022. https://urn.nsk.hr/urn:nbn:hr:149:536006

Terzin, A. (2022). '2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 21 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:536006

Terzin A. 2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2022 [cited 2024 December 21] Available at: https://urn.nsk.hr/urn:nbn:hr:149:536006

A. Terzin, "2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2022. Available at: https://urn.nsk.hr/urn:nbn:hr:149:536006

Metadata
Title2D korelacija FTIR i UV-Vis spektara uzoraka Zn2SiO4 dopiranih s Co
Title (english)2D correlation of FTIR and UV-Vis spectra of Co doped Zn2SiO4 samples
AuthorAndrej Terzin
MentorStanislav Kurajica (mentor)
Committee memberStanislav Kurajica (predsjednik povjerenstva)
Committee memberKatarina Mužina (član povjerenstva)
Committee memberJelena Macan (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2022-11-30, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Abstract
Kobalt je rijedak i skup kemijski element koji zbog svojih specifičnih svojstava u modernome svijetu pronalazi mnogobrojne primjene. Opće je poznato da je otrovan za ljude te da ima štetan utjecaj na okoliš te se stoga njegova uporaba pokušava svesti na što manje količine. Jedna od čestih primjena kobalta je proizvodnja pigmenata, budući da određenim kemijskim spojevima daje izrazito plavu boju. Kobaltno plavo jedan je od najvažnijih anorganskih plavih pigmenata. Ovaj rad bavi se ugradnjom kobalta u strukturu vilemita te tako pripravila čvrsta otopina koja ima boju poput kobaltno plavog ali ne predstavlja toliku opasnost po okoliš. Sol-gel sintezom pripremljeni su uzorci čistog vilemita te vilemita dopiranog sa s 0, 5, 10 i 15 mol% kobalta te su ispitana strukturna, termička i optička svojstva dobivenih produkata. Vilemit je pripravljen s dva seta prekursora; najprije s cink (II) acetatom i kobalt (II) acetatom, a kasnije s cink (II) nitratom i kobalt (II) nitratom. Uzorci su žareni na temperaturama od 800 do 1100 °C. Provedene su rendgenska difrakcijska analiza (XRD), infracrvena spektroskopija s Fourierovom transformacijom (FTIR), UV-Vis difuzna refleksijska spektroskopija DRS, kombinirana termogravimetrijska i diferencijalna toplinska analiza (TGA/DTA).
Abstract (english)
Cobalt is a rare and expensive chemical element that due to its specific properties, finds numerous applications in the modern world. It is generally known as an element toxic for humans and hazardous for the environment and therefore its use is being reduced to the smallest amount possible. One of the common applications of cobalt is that it is used as a pigment component due to its extremely blue colour in some chemical compounds. Cobalt blue is one of the most important inorganic blue pigments. This master's thesis deals with the incorporation of cobalt into the willemite structure in order to prepare solid solution with colour similar to cobalt blue but with reduced threat for environment. The sol-gel synthesis of willemite with different precursors and concentrations of cobalt was carried out, and the structural, thermal and optical properties of the obtained products were examined. Willemite was prepared with two sets of precursors; first with zinc (II) acetate and cobalt (II) acetate and later with zinc (II) nitrate and cobalt (II) nitrate. Samples of willemite doped with 0, 5, 10 and 15 mol% of cobalt were prepared. The samples were annealed at temperatures from 800 to 1100 °C. X-ray diffraction analysis (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Vis diffuse reflectance spectroscopy DRS, combined thermogravimetric and differential thermal analysis (TGA/DTA) were performed.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:536006
Study programmeTitle: Applied Chemistry - Graduate study; specializations in: Environmental chemistry and green technologies, Advanced materials and technologies, Applied organic chemistry
Course: Advanced materials and technologies
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra primijenjene kemije (magistar/magistra primijenjene kemije)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2023-02-15 15:22:23