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undergraduate thesis
Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. urn:nbn:hr:149:046905
Tašić, Aleksandar
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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Tašić, A. (2016). Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:046905

Tašić, Aleksandar. "Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:046905

Tašić, Aleksandar. "Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:046905

Tašić, A. (2016). 'Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:046905

Tašić A. Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2016 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:046905

A. Tašić, "Fotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:149:046905

Metadata
TitleFotokatalitička razgradnja azo-bojila uz poli(3,4-etilendioksitiofen)/ZnO nanokompozitni fotokatalizator
Title (english)Photocatalytic degradation of azo dyes with poly(3,4-ethylenedioxythiophene)/ZnO nanocomposite photocatalyst
AuthorAleksandar Tašić
MentorZlata Hrnjak-Murgić (mentor)
Committee memberZlata Hrnjak-Murgić (predsjednik povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
Committee memberVanja Kosar (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2016-09-26, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Pročišćavanje otpadnih voda moguće je na više načina, različitim metodama i procesima: mehaničkim uklanjanjem onečišćenja, fizikalnim, biološkim, kemijskim metodama. Fotokataliza je proces koji se ubraja u kemijske metode pročišćavanja otpadnih voda, a provodi se upotrebom fotokatalizatora od kojih su najčešći metalni oksidi (TiO2, ZnO … ). U ovom radu istraživana je efikasnost fotokatalitičke razgradnje onečišćenja, azo bojila Reactive Red 45 (RR45) u vodi uz primjenu sintetiziranog nanokompozitnog fotokatalizatora, cinkovog oksida (ZnO) i vodljivog polimera poli(3,4-etilendioksitiofen) (PEDOT). Zato je u radu provedena sinteza PEDOT/ZnO kompozitnog fotokatalizatora pri različitim omjerima monomer:oksidans (1:2; 1:3; 1:5). Sintetizirani fotokatalizatori karakterizirani su Infracrvenom spektroskopijom s Fourierovim transformacijama (FTIR), Rendgenskom difrakcijom (XRD), Pretražnom elektronskom mikroskopijom (SEM) i termogravimetrijskom analizom (TGA). Fotokataliza provedena je pod UV-A zračenjem i simuliranim Sunčevim zračenjem gdje je ispitana učinkovitost uklanjanja azo bojila Reactive Red 45 (RR45) praćenjem obezbojenja vode s UV/Vis spektroskopijom. Iz rezultata fotokatalitičke aktivnosti vidljivo je da uzorak čistog cinkova oksida ima najveću fotokatalitičku aktivnost pod oba tipa zračenja. Najmanju efikasnost uvijek pokazuje kompozit s većim udjelom polimera, što znači da se optimalni fotokatalizator postiže uz manji udio polimera.
Abstract (english)
Wastewater treatment is possible by different methods and processes: mechanical removal of impurities, physical, biological, chemical methods. Photocatalysis is one of the chemical methods of wastewater treatment and is carried out by using a photocatalyst such as metal oxides (TiO2, ZnO, ...). This paper investigated the effectiveness of photocatalytic degradation of pollution, Reactive Red 45 (RR45) azo dye, in water with the use of the synthesized nanocomposite photocatalyst, Zinc oxide (ZnO) and the conductive polymer poly (3,4-ethylenedioxythiophene) (PEDOT). Therefore, the synthesis of PEDOT/ZnO composite photocatalyst was carried out at various monomer to oxidant ratios (1:2; 1:3; 1:5). Synthesized photocatalysts were characterized by Infrared spectroscopy with Fourier transformations (FTIR), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and Thermogravimetric analysis (TGA). Photocatalysis was carried out under UV-A irradiation and simulated Solar irradiation where the effectiveness of RR45 azo dye removal was followed by monitoring the discoloration of water with UV/Vis spectroscopy. From the results of photocatalytic activity it can be seen that the sample of pure Zinc oxide has the highest photocatalytic activity under both types of irradiation. The smallest effectiveness showed the composite with higher share of polymer, which means that the optimal photocatalyst is achieved with lower share of polymer.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:046905
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
Access conditionsOpen access
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Created on2018-02-19 12:42:30