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master's thesis
Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. urn:nbn:hr:149:961241
Šuka, Sniježana
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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Šuka, S. (2016). Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:961241

Šuka, Sniježana. "Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:961241

Šuka, Sniježana. "Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2016. https://urn.nsk.hr/urn:nbn:hr:149:961241

Šuka, S. (2016). 'Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 23 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:961241

Šuka S. Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2016 [cited 2024 November 23] Available at: https://urn.nsk.hr/urn:nbn:hr:149:961241

S. Šuka, "Fotokatalitička aktivnost nanokompozita polipirol/cinkov oksid", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2016. Available at: https://urn.nsk.hr/urn:nbn:hr:149:961241

Metadata
TitleFotokatalitička aktivnost nanokompozita polipirol/cinkov oksid
Title (english)Photocatalytic activity of polypyrrole/zinc oxide nanocomposites
AuthorSniježana Šuka
MentorLjerka Kratofil Krehula (mentor)
Committee memberLjerka Kratofil Krehula (predsjednik povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
Committee memberMirela Leskovac (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2016-09-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U ovom je radu istražena fotokatalitička aktivnost sintetiziranih kompozita vodljivog polimera polipirola i cinkovog oksida (PPy/ZnO). Cilj rada bio je ispitati fotokatalitičku aktivnost kompozita PPy/ZnO pod ultraljubičastim (UV) te simuliranim Sunčevim zračenjem pri razgradnji azo-bojila Reactive Red 45 u otpadnim vodama. Uzorci su pripremljeni polimerizacijom iz monomera pirola (Py) u prisustvu cinkovog oksida te oksidansa željezova (III) klorida (FeCl3); uz molarni omjer monomera i oksidansa 1:1 te različito vrijeme sinteze (90, 180 i 270 minuta). Istraživani uzorci okarakterizirani su infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR) i UV/Vis spektroskopijom. Efikasnost fotokatalitičke razgradnje organskog azo bojila (Reactive Red 45), odnosno stupanj njegova uklanjanja iz vodene otopine, praćena je mjerenjem apsorbancije UV/Vis spektroskopijom. Fotokatalizator PPy/ZnO 90 min pokazao je visoku učinkovitost razgradnje bojila pri UV-A zračenju dok je pod djelovanjem Sunčevog zračenja njegova učinkovitost niska.
Abstract (english)
This work studies the photocatalytic activity of synthesized conductive polymer polypyrrole/zinc oxide nanocomposites (PPy/ZnO). The aim of this study was to examine the photocatalytic activity of composites PPy/ZnO under ultraviolet (UV) and simulated solar radiation in a degradation process of azo dye Reactive Red 45 in the wastewater. The composite samples were prepared during a polymerization process of monomer polypyrrole (PPy) in the presence of zinc oxide (ZnO) and oxidant iron(III) chloride (FeCl3) where the concentration ratio of monomer:oxidant was 1:1 and the duration of synthesis was 90, 180 and 270 min. The samples were characterized by infrared spectroscopy with Fourier transformation (FTIR) and UV/Vis spectroscopy. The efficiency of decomposition of organic azo dye (Reactive Red 45), i.e. the extent of its removal from aqueous solution, was monitored by measuring the absorbance by UV/Vis spectroscopy. Photocatalyst PPy/ZnO 90 min showed very high efficiency under UV-A radiation while its efficiency is low under the solar radiation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:961241
Study programmeTitle: Materials Science and Engineering - Graduate study
Study programme type: university
Study level: graduate
Academic / professional title: magistar/magistra inženjer/inženjerka kemijskog inženjerstva (magistar/magistra inženjer/inženjerka kemijskog inženjerstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2017-11-02 12:14:43