Naslov
Photocatalytic degradation of methyl orange by sol-gel TiO2 films

Autori
Ćurković, Lidija ; Ljubas, Davor ; Marinović, Veronika ; Babić, Sandra ; Čizmić, Mirta ; Majić Renjo, Marijana

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
The 48th International October Conference on Mining and Metallurgy / Štrbec, Nada: Živković, Dragana - Bor : Tehnički fakultet u Boru Univerziteta u Beogradu, 2016, 395-398

ISBN
978-86-6305-047-1

Skup
The 48th International October Conference on Mining and Metallurgy

Mjesto i datum
Bor, Srbija, 28.09.2016. - 01.10.2016

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Photocatalytic degradation ; immobilized TiO2 ; Methyl Orange ; UV radiation

Sažetak
The photocatalytic degradation of the synthetic textile dye Methyl Orange (MO, C.I. Acid Orange 52) using nanostructured sol-gel TiO2 films as photocatalyst was studied. Two nanostructured TiO2 films were prepared by sol-gel process and the dip-coating technique with and without addition of polyethylene glycol (PEG) in sol as a structure-directing agent. Influence of initial MO concentration in aqueous solution (0.0125 mmol L-1, 0.025 mmol L-1 and 0.05 mmol L-1) ; TiO2 films (with and without of addition PEG in sol) and sources of UV radiation (predominantly 254 (UV-C) and 365 nm (UV-A)) on decolorization efficiency was investigated. In the presence of TiO2 film UV-C radiation showed higher degradation efficiency for MO than UV-A radiation. Also, UV-C radiation without TiO2 photocatalyst was capable of degrading MO, while UV-A radiation alone did not show a potential for dyes degradation. Higher photoactivity showed TiO2 film with addition of PEG.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Strojarstvo

POVEZANOST RADA