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master's thesis
Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:100932
Perlog, Martina
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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Perlog, M. (2017). Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita 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:149:100932

Perlog, Martina. "Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:100932

Perlog, Martina. "Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:100932

Perlog, M. (2017). 'Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:100932

Perlog M. Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:149:100932

M. Perlog, "Utjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:100932

Metadata
TitleUtjecaj uvjeta sinteze na fotokatalitičku djelotvornost kompozita polipirol/cinkov oksid
Title (english)The influence of synthesis conditions on the photocatalytic efficiency of polypyrrole/zinc oxide composites
AuthorMartina Perlog
MentorLjerka Kratofil Krehula (mentor)
Committee memberLjerka Kratofil Krehula (predsjednik povjerenstva)
Committee memberZlata Hrnjak-Murgić (član povjerenstva)
Committee memberMarijana Kraljić Roković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-09-27, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
Cinkov oksid smatra se jednim od najboljih fotokatalizatora s obzirom na njegovu efikasnost i cijenu. Pokazuje veliku učinkovitost na ultraljubičastom (UV) zračenju pa se nastoji modificirati da bi se dobio novi fotokatalitički materijal koji bi apsorbirao cijeli ili barem veći dio Sunčeva zračenja, a ne samo ultraljubičasti dio. Cilj ovog rada bio je dobiti optimalnu količinu vodljivog polimera u kompozitnom materijalu koja će, u kombinaciji sa ZnO, omogućiti učinkovitu razgradnju organskih onečišćenja u vodi kako bi ih preveli u biorazgradljive spojeve ili ih u potpunosti mineralizirali. Provedena je sinteza kompozita polipirol/cinkov oksid (PPy/ZnO), polimerizacijom monomera pirola u prisutnosti ZnO, uz različitu duljinu trajanja reakcije polimerizacije (30, 45, 60 i 75 minuta). Fotokatalitičko djelovanje PPy/ZnO kompozita ispitano je u procesu razgradnje bojila Acid Blue 25 (AB 25). Kompoziti PPy/ZnO okarakterizirani su FTIR spektroskopijom, UV/Vis spektroskopijom i termogravimetrijskom analizom (TGA). Uzorcima je određena i elektrovodljivost. Utvrđeno je da kompoziti uspješno razgrađuju uzorke vode onečišćene bojilom AB 25. Sintetizirani fotokatalitički kompoziti PPy/ZnO imaju prošireno fotokatalitičko djelovanje, pomaknuto prema vidljivom poručju UV/Vis spektra Sunčeva zračenja.
Abstract (english)
Zinc oxide is considered to be one of the best photocatalysts in terms of its efficiency and price. It shows high efficiency under ultraviolet (UV) radiation, but there are many efforts in order to modify ZnO to obtain a new photocatalytic material that would absorb whole or at least most of the sun's radiation, not just the ultraviolet part. The aim of this paper was to obtain the optimum amount of conductive polymer in composite material that will, in combination with ZnO, enable efficient decomposition of organic pollutants in water to transform them into biodegradable compounds or fully mineralize them. The synthesis of the composite polypyrrole/zinc oxide (PPy/ZnO) has been carried out by polymerization of pyrrole monomer in the presence of ZnO, with various duration of polymerization (30, 45, 60 and 75 minutes). The photocatalytic activity of PPy/ZnO composites was tested in the process of degradation of the dye Acid Blue 25 (AB 25). PPy/ZnO composites are characterized by FTIR spectroscopy, UV/Vis spectroscopy and thermogravimetric analysis (TGA). Electrical conductivity was also determined. It has been determined that PPy/ZnO composites successfully decompose pollution caused by AB 25. Synthesized PPy/ZnO composites have enhanced photocatalytic activity in the visible region of solar radiation.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:100932
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
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Created on2020-04-27 12:49:20