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EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS

Veronika Marinović ; Forensic Science Centre “Ivan Vučetić”, Zagreb, Croatia
Davor Ljubas ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Croatia
Lidija Ćurković ; Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Croatia

Puni tekst: engleski, pdf (577 KB) str. 3-14 preuzimanja: 368* citiraj
APA 6th Edition
Marinović, V., Ljubas, D. i Ćurković, L. (2017). EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS. The holistic approach to environment, 7 (1), 3-14. Preuzeto s https://hrcak.srce.hr/168850
MLA 8th Edition
Marinović, Veronika, et al. "EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS." The holistic approach to environment, vol. 7, br. 1, 2017, str. 3-14. https://hrcak.srce.hr/168850. Citirano 14.12.2019.
Chicago 17th Edition
Marinović, Veronika, Davor Ljubas i Lidija Ćurković. "EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS." The holistic approach to environment 7, br. 1 (2017): 3-14. https://hrcak.srce.hr/168850
Harvard
Marinović, V., Ljubas, D., i Ćurković, L. (2017). 'EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS', The holistic approach to environment, 7(1), str. 3-14. Preuzeto s: https://hrcak.srce.hr/168850 (Datum pristupa: 14.12.2019.)
Vancouver
Marinović V, Ljubas D, Ćurković L. EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS. The holistic approach to environment [Internet]. 2017 [pristupljeno 14.12.2019.];7(1):3-14. Dostupno na: https://hrcak.srce.hr/168850
IEEE
V. Marinović, D. Ljubas i L. Ćurković, "EFFECTS OF CONCENTRATION AND UV RADIATION WAVELENGHTS ON PHOTOLYTIC AND PHOTOCATALYTIC DEGRADATION OF AZO DYES AQUEOUS SOLUTIONS BY SOL-GEL TiO2 FILMS", The holistic approach to environment, vol.7, br. 1, str. 3-14, 2017. [Online]. Dostupno na: https://hrcak.srce.hr/168850. [Citirano: 14.12.2019.]

Sažetak
The photocatalytic and photolytic degradation of anionic azo dyes Methyl Orange and Congo Red dye aqueous solutions was investigated in glass reactors with/without TiO2 films that were irradiated with UV light. Two nanostructured sol-gel TiO2 films were prepared by means of the dip-coating technique with and without of polyethylene glycol (PEG) as a structure-directing agent. Experiments were carried out by varying the concentration of dyes, TiO2 films and sources of UV radiation. The concentrations of dyes were 0.0125 mmol L-1, 0.025 mmol L-1 and 0.05 mmol L-1; the wavelengths of the incident ultraviolet light were predominantly 254 (UV-C) and 365 nm (UV-A). In the presence of TiO2 film UV-C radiation showed higher degradation efficiency for both dyes than UV-A radiation. Also, UV-C radiation without TiO2 photocatalyst was capable of degrading both dyes, while UV-A radiation alone did not show a potential for dyes degradation. Higher photoactivity showed TiO2 film with addition of PEG.

Ključne riječi
UV radiation; TiO2 film; Congo red dye; Methyl Orange dye; photocatalysis; photolysis

Hrčak ID: 168850

URI
https://hrcak.srce.hr/168850

Posjeta: 512 *