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The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3TiO2 Nanocomposites
Joint Authors
Zielińska-Jurek, Anna
Mioduska, Joanna
Janczarek, Marcin
Hupka, Jan
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-08-07
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Series of WO3/TiO2 nanocomposites were 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 of WO3 crystalline phase and amorphous phase in WO3/TiO2 aggregates, as revealed by XRD analysis, was dependent on the calcination temperature.
The WO3/TiO2 samples with 8 mol% load of WO3 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 obtained WO3/TiO2 nanomaterials.
American Psychological Association (APA)
Mioduska, Joanna& Zielińska-Jurek, Anna& Janczarek, Marcin& Hupka, Jan. 2016. The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3TiO2 Nanocomposites. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109096
Modern Language Association (MLA)
Mioduska, Joanna…[et al.]. The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3TiO2 Nanocomposites. Journal of Nanomaterials No. 2016 (2016), pp.1-8.
https://search.emarefa.net/detail/BIM-1109096
American Medical Association (AMA)
Mioduska, Joanna& Zielińska-Jurek, Anna& Janczarek, Marcin& Hupka, Jan. The Effect of Calcination Temperature on Structure and Photocatalytic Properties of WO3TiO2 Nanocomposites. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-8.
https://search.emarefa.net/detail/BIM-1109096
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109096