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master's thesis
Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. urn:nbn:hr:149:805019
Bakić, Kristian
University of Zagreb
Faculty of Chemical Engineering and Technology

Institutional repository: Repository of Faculty of Chemical Engineering and Technology University of Zagreb

Cite this document

Bakić, K. (2017). Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:805019

Bakić, Kristian. "Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:805019

Bakić, Kristian. "Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2017. https://urn.nsk.hr/urn:nbn:hr:149:805019

Bakić, K. (2017). 'Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 26 December 2024, https://urn.nsk.hr/urn:nbn:hr:149:805019

Bakić K. Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2017 [cited 2024 December 26] Available at: https://urn.nsk.hr/urn:nbn:hr:149:805019

K. Bakić, "Fotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2017. Available at: https://urn.nsk.hr/urn:nbn:hr:149:805019

Metadata
TitleFotokatalitička razgradnja fenolnih spojeva TiO2 katalizatorima
Title (english)Photocatalytic degradation of phenol derivatives using TiO2 catalysts
AuthorKristian Bakić
MentorVanja Kosar (mentor)
Committee memberVanja Kosar (predsjednik povjerenstva)
Committee memberVesna Tomašić (član povjerenstva)
Committee memberJuraj Šipušić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2017-09-25, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Reaction Engineering
Abstract
Postojana organska onečišćivala (eng. persistent organic pollutants, POPs) su spojevi koji se teško uklanjaju iz otpadnih voda. Tradicionalne metode uklanjanja tih spojeva često su skupe i opasne za okoliš. Fotokataliza se, kao jedan od naprednih oksidacijskih procesa (eng. advanced oxidation processes, AOPs), istražuje kao moguća metoda uklanjanja postojanih organskih onečišćivala iz otpadnih voda. U dosadašnjim istraživanjima poseban je naglasak stavljen na fotokatalizu u prisutnosti TiO2 kao fotokatalizatora. Cilj ovog rada je ispitati utjecaj radnih uvjeta (temperatura, koncentracija onečišćivala, valna duljina izvora zračenja, prisutnost/odsutnost katalizatora, izvedba reaktora, masa katalizatora) na kinetiku fotokatalitičke razgradnje fenola. Fenol je izabran, kao modelno onečišćivalo iz grupe POPs-a. Fotokatalitičke reakcije provedene su u anularnom fotokatalitičkom reaktoru, a inicirane su ozračivanjem reakcijskog sustava ultraljubičastim zračenjem. Nađeno je da se fenol najbrže razgrađuje pri višim temperaturama (35 °C) te pri nižim valnim duljinama UV zračenja (254 nm). Fotokatalitička razgradnja fenola provedena je u dvije izvedbe reaktora: reaktoru sa suspendiranim slojem fotokatalizatora i reaktoru s imobiliziranim slojem fotokatalizatora. Izvedba reaktora s imobiliziranim slojem katalizatora nije dala zadovoljavajuće rezultate u razgradnji fenola. Detaljno je opisana kinetika reakcije primjenom Langmuir-Hinshelwoodovog mehanističkog kinetičkog modela.
Abstract (english)
Persistent organic pollutants (POPs) are hardly removable compounds in wastewaters. Traditional methods for removing these compounds are often expensive and hazardous for environment. Photocatalysis, as one of the advanced oxidation processes (AOPs), is researching as a possible method for removing POPs from wastewaters. In the previous studies special attention has been given to the photocatalysis in the presence of TiO2. The aim of this study is to compare influence of different parameters (temperature, pollutant concentration, wavelength of irradiation, presence/absence of the catalyst, reactor configuration, catalyst load) on the kinetic of photocatalytic degradation of phenol, as a model pollutant from POPs group. Catalytic reactions are performed in the annular photocatalytic reactor and initiated by irradiation of reaction system using UV light. It was found that the phenol degradation rate is greatest at higher temperatures (35 °C) and using lower wavelength light (254 nm). Photocatalytic degradation of phenol was carried out in two types of reactor: the slurry reactor and the fixed bed reactor. The fixed bed reactor did not give satisfying results for phenol degradation. The Langmuir-Hinshelwood model is employed to describe reaction kinetic.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:805019
Study programmeTitle: Chemical 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 on2020-04-22 12:40:04