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undergraduate thesis
Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:800726
Stjepanović, Jasmina
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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Stjepanović, J. (2015). Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola (Undergraduate thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:800726

Stjepanović, Jasmina. "Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:800726

Stjepanović, Jasmina. "Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola." Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:800726

Stjepanović, J. (2015). 'Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola', Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:800726

Stjepanović J. Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola [Undergraduate thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:800726

J. Stjepanović, "Istraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola", Undergraduate thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:800726

Metadata
TitleIstraživanje uvjeta kemijske sinteze elektrovodljivog polimera polipirola
Title (english)Study of chemical synthesis conditions of conducting polymer polypyrrole
AuthorJasmina Stjepanović
MentorZlata Hrnjak-Murgić (mentor)
Committee memberZlata Hrnjak-Murgić (predsjednik povjerenstva)
Committee memberAna Lončarić Božić (član povjerenstva)
Committee memberMarijana Kraljić Roković (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-09-15, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Chemical Engineering in Material Development
Abstract
U radu je provedeno ispitivanje uvjeta sinteze vodljivog polimera polipirola s ciljem da se postigne odgovarajuća struktura koja je fotoosjetljiva u širem dijelu vidljivog dijela sunčeva spektra. Tijekom sinteze polipirola (PPy) uzorcima je mijenjan udio oksidansa (FeCl3) u odnsou na udio monomera pirola, odnos monomer : oksidans bio je: 1:1; 1:1,5; 1:2; 1:5; vrijeme sinteze bilo je 90 i 180 min, dok je tempratura održavana konstantnom, 5 °C. Za svaki sintetiziran uzorak određen je stupanj konverzije monomera, a potom su uzorci karakterizirani infracrvenom spektroskopijom s Fourierovom transformacijom (FTIR). Provedena je također njihova fotokatalitička validacija UV/VIS spektrofotometrom, pomoću kojeg se mjerila efikasnost razgradnje organskog azo bojila (Reactive Red 45) kao onečišćivaća vode. Iz rezultata istraživanja uvjeta sinteze vodljivog polimera polipirola se može zaključiti da promjena uvjeta sinteze znatno utječe na stupanj konverzije i strukturu molekula pirola, kao i na veličinu molekulskih masa što je vidljivo iz različitog fotokatalitičkog djelovanja. Iz rezultata fotokatalitičke razgradnje može se zaključiti da s vremenom fotokatalitičke razgradnje obezbojenje sporo raste kad je proces kataliziran s čistim PPy. Rezultati također ukazuju da je proces adsorpcije bojila na PPy katalizatore značajan.
Abstract (english)
In this work research of synthesis conditions of polypyrrole conductive polymer was carried out in order to achieve an appropriate structure, which is photosensitive in the wider part of the visible solar spectrum. During the synthesis of polypyrrole (PPY) samples fraction of oxidant (FeCl3) was altered in comparison to fraction of pyrrole monomer, the ratio of monomer: oxidant was: 1: 1; 1: 1.5; 1: 2; 1: 5, the time of synthesis was 90 and 180 min, while the temperature was maintained constant at 5 ° C. For each synthesized sample degree of conversion of the monomer was determined, and then the samples were further characterized by infrared spectroscopy with Fourier transform (FTIR). The validation of their photocatalytic activity was carried out by UV / VIS spectrophotometer, by measuring the efficiency of decomposition of the organic azo dyes (Reactive Red 45) that were used as water pollutant. From the results of the synthesised conducting polymer polypyrrole can be concluded that the change in the conditions of synthesis greatly affect the degree of conversion and the structure of the molecule is pyrrole, as well as the size of the molecular weight, which is demonstrated by the different photocatalytic activity. From the results of photocatalytic degradation of RR45 can be concluded that with time of photocatalytic degradation discoloration is growing slow when PPy was used as photocatalyst, but the process of adsorption of dyes on PPy photocatalysts was significant.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:800726
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 on2016-11-25 13:57:09