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undergraduate thesis
Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:128770
Vrban, Ivan
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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Vrban, I. (2017). Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:128770

Vrban, Ivan. "Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:128770

Vrban, Ivan. "Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:128770

Vrban, I. (2017). 'Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:128770

Vrban I. Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:128770

I. Vrban, "Sinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:128770

Metadata
TitleSinteza nanokompozitnog ZnO fotokatalizatora; razgradnja Acid Blue 25 bojila
Title (english)Synthesis of nanocomposite ZnO photocatalyst; degradation of Acid Blue 25 dye
AuthorIvan Vrban
MentorZlata Hrnjak-Murgić (mentor)
Committee memberZlata Hrnjak-Murgić (predsjednik povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
Committee memberMark Žic (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Polianilin/cinkov oksid (PANI/ZnO) nanokompozitni fotokatalizatori sintetizirani su in situ, kemijskom oksidativnom polimerizacijom monomera anilina uz prisustvo ZnO nanočestica. Sinteza PANI/ZnO nanokompozitih fotokatalizatora provodila se u kiselom vodenom mediju i u neutralnom mediju s određenim udjelom organskog otapala (dietilen glikol). Pri sintezi PANI/ZnO nanokompozitnih fotokatalizatora u kiselom mediju modificiran je maseni odnos monomera anilina i cinkovog oksida (50%, 100%, 200%) te su dobiveni uzorci PANI/0,5ZnO, PANI/1ZnO i PANI/2ZnO. Sinteza PANI/ZnO nanokompozitnih fotokatalizatora u neutralnom mediju provodila se s različitim koncentracijama dietilen glikola ( 0,02 mol/dm^3, 0,024 mol/dm^3, 0,04 mol/dm^3). Maseni odnos monomera anilina i cinkova oksida pri sintezi u neutralnom mediju iznosio je 75 %. Sintezom u neutralnom mediju s određenim udjelom organskog otapala dobivena su tri uzorka (15PANI/ZnO/0,02DEG, 15PANI/ZnO/0,024DEG, 15PANI/ZnO/0,04DEG). Čisti ZnO i sintetizirani PANI/ZnO nanokompozitni fotokatalizatori karakterizirani su FTIR spektroskopijom te određivanjem elektrovodljivosti. Fotokatalitička učinkovitost PANI/ZnO nanokompozitih fotokatalizatora je bila ispitivana razgradnjom Acid Blue 25 bojila pod djelovanjem simulirane Sunčeve svjetlosti i mjerenjem apsorbancije na UV/Vis spektrometru. Rezultati istraživanja pokazuju da PANI/ZnO nanokompozitni fotokatalizatori sintetizirani u kiselom vodenom mediju pokazuju značajnu adsorpcijsku moć i manju efikasnost fotokatalitičke razgradnje AB25 bojila, a PANI/ZnO nanokompoziti fotokatalizatori sintetizirani u vodenom mediju s određenim udjelom organskog otapala slabiju adsorpcijsku moć te znatno višu efikasnost fotokataltičke razgradnje AB25 bojila.
Abstract (english)
Polyaniline/zinc oxide (PANI/ZnO) nanocomposites were synthesized by the chemical oxidative in situ polymerization of monomer aniline with the presence of ZnO nanoparticles. Synthesis has been carried out in acidic aqueous solution and in neutral aqueous solution with predefined percentage of organic solvent (Diethylene glycol). Samples PANI/0,5ZnO, PANI/1ZnO and PANI/2ZnO were synthesized in the acidic medium and the mass ratio of aniline monomer and zinc oxide was modified (50%, 100%, 200%). Synthesis of the PANI/ZnO nanocomposite photocatalysts in the neutral medium was carried out with different concentrations of diethylene glycol (0.02 mol /dm^3, 0.024 mol/dm^3, 0.04 mol/dm^3). The mass ratio of aniline and zinc oxide monomers in neutral media was 75%. Three samples (15PAN / ZnO / 0.02DEG, 15PAN / ZnO / 0.024DEG, 15PAN / ZnO / 0.04DEG) were synthesized in a neutral medium with a specific amount of organic solvent. Pure ZnO and PANI/ZnO nanocomposite photocatalysts were characterized by FTIR spectroscopy and electroconductivity. Photocatalytic efficiency of PANI/ZnO nanocomposite photocatalysts were investigated by the degradation of Acid Blue 25 dye under simulated solar irradiation and by measuring the absorbance with the UV/Vis spectrometer. The results of the research show that PANI / ZnO nanocomposite photocatalysts synthesized in acidic aqueous medium exhibit significant adsorption ability and lower efficiency of photocatalytic degradation of AB25 dye and PANI / ZnO nanocomposites synthesized in aqueous medium with a certain amount of organic solvent lower adsorption ability and significantly more efficiency of photocatalytic degradation of AB25 dye.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:128770
Study programmeTitle: Chemical 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
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Created on2021-03-15 12:14:53