Preparation of ZnO Modified TiO2 Nanoporous Coatings and Their Photocatalytic Properties
IOP Conference Series: Materials Science and Engineering. Vol.503: Functional Materials and Nanotechnologies (FM&NT 2018)
2019
Reinis Drunka,
Jānis Grabis,
Anita Letlena,
Dzidra Jankoviča,
Aija Krūmiņa,
Ints Šteins
In the present work formation of active nanoporous TiO 2 photocatalysts and their modification with ZnO were studied. TiO 2 nanoporous coatings on Ti foil with surface area 100cm 2 were prepared by using plasma electrolytic oxidation (PEO) method in 0.5M H 2 SO 4 electrolyte and by using 160V DC voltage. For modification of TiO 2 coatings with ZnO spray pyrolysis method where used. After preparation samples were dried and calcined at 400°C for 2h in air. Photocatalytic properties of obtained samples were tested by using degradation method of methylene blue (MB) solution under UV and VIS light illumination. Degradation rate of MB were measured by using spectrophotometer. From obtained results reaction constant (k) in the pseudo first order reaction were calculated. As prepared ZnO modified TiO 2 nanoporous coating photocatalysts are with higher photocatalytic activity with respect to pure TiO 2 nanoporous coating photocatalyst.
Keywords
aromatic compounds, Coatings, Degradation, Electrolysis, Electrolytes, Functional materials, II-VI semiconductors, Nanotechnology, Photocatalysis, Spray pyrolysis, Titanium dioxide, Zinc oxide
DOI
10.1088/1757-899X/503/1/012008
Hyperlink
https://iopscience.iop.org/article/10.1088/1757-899X/503/1/012008/meta
Drunka, R., Grabis, J., Letlena, A., Jankoviča, D., Krūmiņa, A., Šteins, I. Preparation of ZnO Modified TiO2 Nanoporous Coatings and Their Photocatalytic Properties. In: IOP Conference Series: Materials Science and Engineering. Vol.503: Functional Materials and Nanotechnologies (FM&NT 2018), Latvia, Riga, 2-5 October, 2018. Bristol: IOP Publishing Ltd, 2019, Article number 012008. ISSN 1757-8981. e-ISSN 1757-899X. Available from: doi:10.1088/1757-899X/503/1/012008
Publication language
English (en)