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undergraduate thesis
Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. urn:nbn:hr:149:843959
Šijaković, Anamarija
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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Šijaković, A. (2018). Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:843959

Šijaković, Anamarija. "Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:843959

Šijaković, Anamarija. "Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2018. https://urn.nsk.hr/urn:nbn:hr:149:843959

Šijaković, A. (2018). 'Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:843959

Šijaković A. Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2018 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:843959

A. Šijaković, "Modifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2018. Available at: https://urn.nsk.hr/urn:nbn:hr:149:843959

Metadata
TitleModifikacija i karakterizacija PPy/TiO2 nanokompozitnog fotokatalizatora
Title (english)Modification and characterization of PPy/TiO2 nanocomposite photocatalyst
AuthorAnamarija Šijaković
MentorZlata Hrnjak-Murgić (mentor)
Committee memberZlata Hrnjak-Murgić (predsjednik povjerenstva)
Committee memberLjerka Kratofil Krehula (član povjerenstva)
Committee memberMarijana Kraljić Roković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2018-09-20, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U ovom radu provedena je in situ sinteza vodljivog polimera polipirola (PPy) uz prisustvo nanočestica titanijeva dioksida (TiO2) za pripremu nanokompozitnog fotokatalizatora (PPy/TiO2). Modificiranje PPy/TiO2 fotokatalizatora provedeno je deprotoniranjem s amonijevim hidroksidom (NH4OH) dok je proces reprotoniranja proveden s klorovodičnom kiselinom (HCl) s ciljem da se istraži utjecaj promijene vodljivosti PPy na katalitičku efikasnost tijekom procesa fotokatalize. Postupci reprotoniranja i deprotoniranja provedni su u različitim vremenskim periodima. Uzorci su okarakterizirani infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR) i mjerenjem elektrovodljivosti nultog i modificiranih PPy/TiO2 fotokatalizatora. Efikasnost fotokatalitičke razgradnje organskog azo bojila Reactive Red 45 (RR45), koje je korišteno kao onečišćenje u vodi, odnosno stupanj njegovog uklanjanja praćen je mjerenjem apsorbancije UV/VIS spektroskopijom. Također, određena je i mineralizacija RR45 bojila, odnosno određena je koncentracija ukupnog organskog ugljika (TOC) koji je prisutan u otpadnoj vodi nakon fotokalize. Iz rezultata fotokatalitičke aktivnosti PPy/TiO2 katalizatora vidljivo je da se ona mijenja s modifikacijom, tj. s promjenom vodljivosti PPy odnosu na čisti sintetizirani fotokatalizator.
Abstract (english)
In this paper, in situ synthesis of conductive polymer polypyrole (PPy) in the presence of nanoparticles titanium dioxide (TiO2) for the preparation of nanocomposite photocatalyst (PPy/TiO2) was performed. Modification of PPy/TiO2 photocatalyst was carried out by deprotonation with the ammonium hydroxide (NH4OH) while the reprotonation process was carried out with hydrochloric acid (HCl) to explore the influence of PPy conductivity variation on catalytic efficiency during photocatalysis. Reprotonation and deprotonation procedures are performed for different period of time. Samples are characterized by Infrared Fourier Transform Transformation (FTIR) spectroscopy and by measurement conductivity of pure and modified PPy/TiO2 photocatalysts. Efficacy of photocatalytic degradation of organic azo dye Reactive Red 45 (RR45) was followed, which was used as a water contaminant. The degree of RR45 removal was monitored by measuring the absorbance by UV/VIS spectroscopy. Also, the mineralization of RR45 was determined as it represents the concentration of total organic carbon (TOC) present in the wastewater after photocatalysis. From the photocatalytic activity of the PPy/TiO2 catalyst, it is apparent that it changes with modification, i.e. with the change of conductivity of PPy compared to the synthesized photocatalyst.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:843959
ProjectNumber: IP-2013-11-5092
Title: Razvoj fotokatalitičkih polimernih nanokompozita za obradu otpadnih voda
Title: Development of Photocatalytic Polymer Nanocomposites for Wastewater Treatment
Acronym: DePoNPhoto
Leader: Zlata Hrnjak-Murgić
Jurisdiction: Croatia
Funder: HRZZ
Funding stream: IP
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 conditionsOpen access
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Created on2022-05-26 13:40:36