Search
The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3/TiO2 Nanocomposites
Abstract
Series ofWO3/TiO2 nanocompositeswere obtained by hydrothermal method followed by calcination in the temperature range from 400∘C to 900∘C. The characteristics of photocatalysts by X-ray diffractometry (XRD), scanning electron microscope (SEM), and diffuse reflectance spectroscopy (DRS) showed that increasing the calcination temperature from 400 to 900∘C resulted in change of photocatalytic activity under UV-Vis light.Moreover, the amount ofWO3 crystalline phase and amorphous phase inWO3/TiO2 aggregates, as revealed by XRD analysis, was dependent on the calcination temperature.TheWO3/TiO2 samples with 8 mol% load ofWO3 in respect to TiO2 calcinated at 500 and 800∘C possess the highest photocatalytic activity in reaction of phenol degradation, which is about 1.2 and 1.5 times that with calcination at 400∘C. The increase in calcination temperature above 400∘C resulted in increase of WO3 crystallinity and reduction of the amount of amorphous phase in the nanocomposite structure. Moreover, the annealing of nanocomposites above 700∘C decreases the value of optical band gap energies of obtainedWO3/TiO2 nanomaterials.
Citations
-
1 8
CrossRef
-
0
Web of Science
-
2 0
Scopus
Authors (4)
Cite as
Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1155/2016/3145912
- License
-
open in new tab
Keywords
Details
- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Journal of Nanomaterials
no. 2016,
pages 1 - 8,
ISSN: 1687-4110 - Language:
- English
- Publication year:
- 2016
- Bibliographic description:
- Mioduska J., Zielińska-Jurek A., Janczarek M., Hupka J.: The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3/TiO2 Nanocomposites// Journal of Nanomaterials. -Vol. 2016, (2016), s.1-8
- DOI:
- Digital Object Identifier (open in new tab) 10.1155/2016/3145912
- Verified by:
- Gdańsk University of Technology
seen 139 times
Recommended for you
The effect of calcination temperature on structure and photocatalytic properties of Au/Pd nanoparticles supported on TiO2
- A. Malankowska,
- J. B. Priebe,
- M. Pohl
- + 5 authors
Screen-printed Sn-doped TiO2 nanoparticles for photocatalytic dye removal from wastewater: A technological perspective
- A. Soleimani-Gorgani,
- H. Al-Hazmi,
- A. Esmaeili
- + 1 authors