Synthesis of TiO2-rGO nanocomposites as photocatalysts for the degradation of methylene blue dye in water (CROSBI ID 679150)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Kocijan, Martina ; Ćurković, Lidija ; Ljubas, Davor ; Mužina, Katarina ; Kurajica, Stanislav ; Mandić, Vilko
engleski
Synthesis of TiO2-rGO nanocomposites as photocatalysts for the degradation of methylene blue dye in water
The aim of this study was to synthesize the TiO2- rGO (titania-reduced graphene oxide) nanocomposites as photocatalysts. The graphene oxide (GO) was synthesized from natural graphite powder by Hummer's method. TiO2 sol was prepared by using titanium tetraisopropoxide as a precursor, i-propanol as a solvent, acetylacetone as a chelating agent and nitric acid as a catalyst. The TiO2-rGO nanocomposites with different amounts of GO were obtained by a hydrothermal method. They were characterized by means of powder X-ray diffraction analysis, Fourier transform infrared spectroscopy, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy. The photocatalytic activity of the TiO2-rGO nanocomposites was evaluated by the photocatalytic degradation of Methylene blue (MB) dye (dissolved in water) as a model pollutant with the irradiation by three different lamps: (I) a light-emitting diode (LED) lamp with a radiation peak at 365 nm, (II) halogen lamp that emits radiation predominantly in visible region and (III) Solar-simulator lamp. The concentrations of MB were monitored by UV-Vis spectrophotometry. Obtained results indicated that photocatalytic properties of prepared TiO2-rGO nanocomposites depend on the amount of rGO and on the type of the radiation (irradiation source).
nanocomposites, reduced graphene oxide, photocatalysis
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Podaci o prilogu
88-88.
2019.
objavljeno
Podaci o matičnoj publikaciji
Book of Abstracts: "2nd International Conference on Nanomaterials Science and Mechanical Engineering"
Bdikin, Igor ; Singh, Budhendra ; Simoes, Raul
Aveiro: UA Editora, Universidade de Aveiro
978-972-789-544-1
Podaci o skupu
2nd International Conference on Nanomaterials Science and Mechanical Engineering
predavanje
09.07.2019-12.07.2019
Aveiro, Portugal