Naslov
Photocatalytic degradation of ciprofloxacin by sol-gel derived Ce-doped TiO2 films

Autori
Ćurković, Lidija ; Briševac, Debora ; Mandić, Vilko ; Ljubas, Davor ; Veseli, Rea

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

Izvornik
Nowelties’ Final Conference / Babić, Sandra ; Mutavdžić-Pavlović, Dragana ; Kušić, Hrvoje ; Petrović, Mira - Zagreb : Fakultet kemijskog inženjerstva i tehnologije Sveučilišta u Zagrebu, 2022, 79-79

ISBN
978-953-6470-94-5

Skup
Nowelties’ Final Conference - New Materials and Inventive Waste Water Treatment Technologies. Harnessing resources effectively through innovation

Mjesto i datum
Dubrovnik, Hrvatska, 11.05.2022. - 12.05.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Ce-TiO2, ciprofloxacin, characterization, photocatalysis, simulated solar radiation

Sažetak
Here we study the photocatalytic degradation of the antibiotic ciprofloxacin (CIP) supported by sol-gel Ce-doped TiO2 photocatalyst nanoparticles. The photocatalyst samples consist of Ce in 0.08, 0.40, 0.80, 2.40 and 4.10 wt.%. For the preparing of the sols we used titanium isopropoxide and cerium (III) nitrate hexahydrate as precursors, 2-propanol as a solvent, acetylacetone as a complexation agent, distilled water as a hydrolysis agent, and nitric acid as a hydrolysis/polycondensation catalyst. The Ce-TiO2 sol was deposited on borosilicate glass samples using a flow coating method. After deposition, films were dried at 100 °C for 1 hour and heat-treated at 450 °C for 2 hours at a heating rate of 3 °C/min. The activity and efficiency of Ce- TiO2 films for photocatalytic degradation of the CIP under simulated solar radiation was investigated, especially the influence of the changing irradiation intensity. The weight loss as well as exothermic and endothermic reactions during the thermal treatment, were obtained by simultaneous differential thermal and thermogravimetric analysis (DSC/TGA). The phase composition and parameters and volumes of the unit cells were determined by X-ray diffraction (XRD). Atomic force microscopy (AFM) was used to describe surface morphology and roughness parameters of the films. Photocatalytic studies indicate that TiO2 photocatalyst with 0.80 wt. % Ce showed the highest rate of degradation of ciprofloxacin using simulated solar radiation.

Izvorni jezik
Engleski

Znanstvena područja
Kemijsko inženjerstvo, Strojarstvo, Interdisciplinarne tehničke znanosti

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