Naslov
Effects of annealing temperature on structural, morphological, and photocatalytic properties of TiO2/rGO nanocomposites

Autori
Kocijan, Martina ; Ćurković, Lidija ; Radošević, Tina ; Seleš, Patrick ; Vengust, Damjan ; Podlogar, Matejka

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

Izvornik
4th Symposium on Chemical and Biological Engineering, DCE21 - Doctoral Congress in Engineering / Pinto, Alexandra ; Moreira, Ana I. ; Cerdeira, Ana T. ; Torres Pinto, André ; Rocha, Cláudio ; Fernandes, Isabel ; Barros, Maria A. ; Romeu, Maria J. - Porto : FEUP EDIÇÕES, 2021, 180-180

ISBN
978-972-752-282-8

Skup
The 4th Doctoral Congress in Engineerin (DCE21)

Mjesto i datum
Porto, Portugal, 28.06.2021. - 29.06.2021

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
annealing temperature, TiO2/rGO nanocomposites, heterogeneous photocatalysis, Rhodamine B, sun-like irradiation

Sažetak
In this research, the hydrothermal synthesis was used to prepare nanocomposites titanium dioxide/reduced graphene oxide (TiO2/rGO) with additional annealing at different temperatures (300 °C, 400 °C, and 500 °C). The TiO2 colloidal sol was prepared using titanium (IV) isopropoxide (Ti(C3H5O12)4, TTIP) as a precursor. Graphene oxide (GO) was synthesized using graphite flakes (≤50 µm) by a Hummer’s method. The prepared photocatalysts were characterized by means of Fourier transforms infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and Raman spectroscopy. The photoactivity of nanocomposites was evaluated by the degradation of Rhodamine B (RhB) dye as a model of an organic pollutant. Tests were performed under sun-like irradiation. It was found that the annealing temperatures have an influence on the investigated properties of as- prepared nanocomposites.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Kemijsko inženjerstvo, Strojarstvo, Temeljne tehničke znanosti

POVEZANOST RADA