Naslov
Photocatalytic degradation kinetics of Congo Red dye by sol-gel TiO2 film

Autori
Ljubas, Davor ; Ćurković, Lidija ; Marinović, Veronika ; Juretić, Hrvoje ; Dobrović, Slaven

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
XXII. HRVATSKI SKUP KEMIČARA I KEMIJSKIH INŽENJERA / Tomašić, Vesna ; Maduna Valkaj, Karolina - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2011, 268-268

ISBN
978-953-6894-42-0

Skup
XXII. HRVATSKI SKUP KEMIČARA I KEMIJSKIH INŽENJERA

Mjesto i datum
Zagreb, Hrvatska, 13.02.2011. - 16.02.2011

Vrsta sudjelovanja
Poster

Vrsta recenzije
Domaća recenzija

Ključne riječi
sol-gel TiO2 films; photocatalytic; Congo Red

Sažetak
In this paper photocatalytic degradation of Congo Red dye in water solution was studied using TiO2 as a photocatalyst in the form of a nano film irradiated with UV-A light (365 nm). The TiO2 nano film was deposited on the borosilicate glass substrate by sol-gel dip coating method. For the preparation of TiO2 sol, the following components were used: titanium (IV) isopropoxide as the titanium precursor, propanol as a solvent, nitric acid as a catalyst and acetylacetone for peptization. Crystal structure of TiO2 was identified by X-ray diffraction (XRD) method. The photocatalytic degradation process of Congo Red dye was monitored by means of UV-Vis spectrophotometry. Experiments were performed at 25°C. The experimental results indicated that degradation rate of Congo Red dye follows pseudo first-order kinetics according to the Langmuir-Hinshelwood (L-H) model.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA