prikaz prve stranice dokumenta Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2
  Download
PDF 2.02 MB
master's thesis
Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2
Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. urn:nbn:hr:149:268543
Štrk, Ana
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

Štrk, A. (2015). Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2 (Master's thesis). Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:149:268543

Štrk, Ana. "Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:268543

Štrk, Ana. "Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2." Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, 2015. https://urn.nsk.hr/urn:nbn:hr:149:268543

Štrk, A. (2015). 'Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2', Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, accessed 04 November 2024, https://urn.nsk.hr/urn:nbn:hr:149:268543

Štrk A. Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2 [Master's thesis]. Zagreb: University of Zagreb, Faculty of Chemical Engineering and Technology; 2015 [cited 2024 November 04] Available at: https://urn.nsk.hr/urn:nbn:hr:149:268543

A. Štrk, "Fotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2", Master's thesis, University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, 2015. Available at: https://urn.nsk.hr/urn:nbn:hr:149:268543

Metadata
TitleFotokatalitička razgradnja salicilne kiseline s imobiliziranim TiO2
Title (english)Photocatalytic degradation of salicylic acid with immobilized TiO2
AuthorAna Štrk
MentorSanja Papić (mentor)
Committee memberSanja Papić (predsjednik povjerenstva)
Committee memberIvan Brnardić (član povjerenstva)
Committee memberZvonimir Katančić (član povjerenstva)
GranterUniversity of Zagreb
Faculty of Chemical Engineering and Technology
Zagreb
Defense date and country2015-10-28, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Chemical Engineering
Environmental Protection in Chemical Engineering
Abstract
U ovom radu proučavana je fotokatalitička aktivnost titan dioksida, TiO2, za razgradnju salicilne kiseline kao modelnog aromatskog onečišćivala u vodi. Korišten je fotokatalizator TiO2 suspendiran u otopini salicilne kiseline i imobiliziran na mrežice od staklenih vlakana. Sol-gel sintezom pripravljena je TiO2 suspenzija korištena za nanošenje TiO2 na staklene mrežice. Fotokatalitički eksperimenti provedeni su u šaržnom anularnom reaktoru s magnetskim miješanjem u kojem je proveden eksperiment sa suspendiranim fotokatalizatorom i u četvrtastom, šaržnom reaktoru s recirkulacijom u kojem su provedeni eksperimenti s imobiliziranim fotokatalizatorom u dva različita volumena otopine salicilne kiseline. Kao izvor svjetlosnog zračenja korištena je lampa koja imitira UV-A zračenje. Uspješnost nanošenja fotokatalizatora na staklene mrežice potvrđena je pretražnom elektronskom mikroskopijom (SEM/EDS analiza), dok je stupanj razgradnje salicilne kiseline određen mjerenjem koncentracije SA primjenom tekućinske kromatografije visoke djelotvornosti (HPLC). Postignuta je razgradnja salicilne kiseline u 100 ml otopine koncentracije 0,2 mM od 9,2 % za 60 min i 19,6 % za 180 min s imobiliziranim TiO2 (0,03 g) te od 36 % sa suspendiranim TiO2 (0,10 g) za 60 min. Ustanovljena je podjednaka aktivnost imobiliziranog TiO2 u provedena tri fotokatalitička ciklusa.
Abstract (english)
The aim of this study was to investigate photocatalytic activity of titanium dioxide, TiO2, for the degradation of the salicylic acid as a model aromatic pollutant in water. Photocatalyst TiO2 was used suspended in a solution of salicylic acid and immobilized on fiberglass meshes. The TiO2 suspension was prepaired by a sol-gel synthesis and used for applying TiO2 to a fiberglass meshes. Photocatalytic experiments were conducted in batch annular reactor with magnetic stirring (experiment with suspended photocatalyst), and in rectangular, batch reactor with the recirculation (experiments with immobilized photocatalyst) in two different solution volume of salicylic acid. Lamp that emmiting the UV-A solar radiation was used as a source of radiation. Scanning Electron Microscopy (SEM / EDS analysis) confirmed the success of applying photocatalyst on the fiberglass meshes, and degree of degradation of the salicylic acid was determined by measuring the concentration of SA using High Performance Liquid Chromatography, HPLC. Degradation of the salicylic acid in 100 ml of solution concentration of 0,2 mM achieved 9,2 % for 60 min, and 19,6 % for 180 min with immobilized TiO2 (0,03 g), and 36 % with suspended TiO2 (0,10 g) for 60 min. It was established that activity of immobilized TiO2 was equal in conducted three photocatalytic cycles.
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:149:268543
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
Terms of useLicence In copyright icon
Created on2017-03-20 12:28:18