prikaz prve stranice dokumenta Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika
Embargo period 2025-01-01
undergraduate thesis
Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. urn:nbn:hr:149:465484
Stjepanović, Karla
University of Zagreb
Faculty of Chemical Engineering and Technology

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

Cite this document

Stjepanović, K. (2024). Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:465484

Stjepanović, Karla. "Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:465484

Stjepanović, Karla. "Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2024. https://urn.nsk.hr/urn:nbn:hr:149:465484

Stjepanović, K. (2024). 'Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 25 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:465484

Stjepanović K. Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2024 [cited 2024 December 25] Available at: https://urn.nsk.hr/urn:nbn:hr:149:465484

K. Stjepanović, "Elektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2024. Available at: https://urn.nsk.hr/urn:nbn:hr:149:465484

Metadata
TitleElektrokemijska sinteza WO3 i njegova primjena u fotoelektrokemijskom procesu razgradnje farmaceutika
Title (english)Elektrochemical synthesis of WO3 and its application in photoelectrochemical degradation of pharmaceuticals
AuthorKarla Stjepanović
MentorMarijana Kraljić Roković (mentor)
Committee memberMarijana Kraljić Roković (predsjednik povjerenstva)
Committee memberJozefina Katić (član povjerenstva)
Committee memberIva Movre Šapić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2024-02-23, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Abstract
Cilj ovog rada bio je izraditi FTO/WO3 elektrode, elektrokemijskom sintezom WO3 fotokatalizatora te okarakterizirati izrađene FTO/WO3 elektrode raznim elektrokemijskim tehnikama. Elektrokemijska sinteza WO3 fotokatalizatora provedena je redukcijom peroksovolframove kiseline. Karakterizacija izrađenih FTO/WO3 elektroda provedena je praćenjem potencijala otvorenog kruga, elektrokemijskom impedancijskom spektroskopijom, Mott-Schottky analizom, linearnom polarizacijom i kronoamperometrijom. Karakterizacije izrađenih FTO/WO3 elektroda provedene su u 0,5 mol dm^-3 elektrolitnoj otopini Na2SO4. Osvjetljenje FTO/WO3 elektroda provedeno je primjenom LED lampe. Nadalje, drugi cilj ovog rada bio je odrediti djelotvornost razgradnje farmaceutika amoksicilina fotoelektrokemijskim procesom uz izrađenu FTO/WO3 elektrodu. Dobiveni rezultati karakterizacije FTO/WO3 elektroda pokazali su da je fotoaktivnost najveća kod Elektrode 2, a najmanja kod Elektrode 1. Stoga je razgradnja farmaceutika amoksicilina fotoelektrokemijskim procesom provedena pomoću Elektrode 2. Fotoelektrokemijski proces se odvijao pri 0,8 V, tijekom 90 minuta u 0,1 mmol dm^-3 otopini amoksicilina u 0,1 mmol dm^-3 elektrolitnoj otopini Na2SO4. Djelotvornost razgradnje farmaceutika amoksicilina fotoelektrokemijskim procesom određena je HPLC analizom te je iznosila 87,41%.
Abstract (english)
The aim of this study was to prepare FTO/WO3 electrodes by electrochemical synthesis of WO3 photocatalyst and to characterize the prepared FTO/WO3 electrodes using various electrochemical techniques. Electrochemical synthesis of WO3 photocatalyst was carried out by reduction of peroxotungstic acid. The characterization of prepared FTO/WO3 electrodes was performed by the open circuit potential measurement, electrochemical impedance spectroscopy, Mott-Schottky analysis, linear polarization and chronoamperometry. The characterizations of prepared FTO/WO3 electrodes were carried out in 0.5 mol dm^-3 Na2SO4 electrolyte solution. The FTO/WO3 electrodes were illuminated using an LED lamp. Furthermore, another aim of this study was to determine the degradation efficiency of amoxicillin pharmaceutical in the photoelectrochemical process using the prepared FTO/WO3 electrode. The obtained results for characterization of the FTO/WO3 electrodes indicated that the photoactivity is highest for Electrode 2 and lowest for Electrode 1. Therefore, the degradation of the amoxicillin pharmaceutical in the photoelectrochemical process was carried out using Electrode 2. The photoelectrochemical process was carried out at 0.8 V for 90 minutes in a 0.1 mmol dm^-3 amoxicillin solution in 0.1 mmol dm^-3 Na2SO4 electrolyte solution. The degradation efficiency of amoxicillin pharmaceutical in the photoelectrochemical process was determined by HPLC analysis and amounted to 87.41%.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:465484
Study programmeTitle: Materials Science and Engineering - Undergraduate study
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
Access conditionsEmbargoed access
Embargo expiration date: 2025-01-01
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Created on2024-02-26 09:30:16