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Impact of Ge4+ Ion as Structural Dopant of Ti4+ in Anatase: Crystallographic Translation, Photocatalytic Behavior, and Efficiency under UV and VIS Irradiation
Joint Authors
Štengl, Václav
Velická, Jana
Henych, Jiří
Bakardjieva, Snejana
Grygar, Tomáš Matys
Source
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-26
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Nanometric particles of germanium-doped TiO2 were prepared by homogeneous hydrolysis of TiOSO4 and GeCl4 in an aqueous solution using urea as the precipitation agent.
Structural evolution during heating of these starting Ge-Ti oxide powders was studied by X-ray diffraction (XRD) and high-temperature X-ray powder diffraction (HTXRD).
The morphology and microstructure changes were monitored by means of scanning electron microscopy (SEM), Raman and infrared spectroscopy (IR), specific surface area (BET), and porosity determination (BJH).
The photocatalytic activity of all samples was determined by decomposition of Orange II dye under irradiation at 365 nm and 400 nm.
Moderate doping with concentration upto value 2.05 wt.% positively influences azo dye degradation under UV and Vis light.
Further improvement cannot be achieved by higher Ge doping.
Effect of the annealing (200, 400, and 700°C) on photocatalysis and other properties has been assessed.
American Psychological Association (APA)
Štengl, Václav& Grygar, Tomáš Matys& Velická, Jana& Henych, Jiří& Bakardjieva, Snejana. 2012. Impact of Ge4+ Ion as Structural Dopant of Ti4+ in Anatase: Crystallographic Translation, Photocatalytic Behavior, and Efficiency under UV and VIS Irradiation. Journal of Nanomaterials،Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-1029169
Modern Language Association (MLA)
Štengl, Václav…[et al.]. Impact of Ge4+ Ion as Structural Dopant of Ti4+ in Anatase: Crystallographic Translation, Photocatalytic Behavior, and Efficiency under UV and VIS Irradiation. Journal of Nanomaterials No. 2012 (2012), pp.1-11.
https://search.emarefa.net/detail/BIM-1029169
American Medical Association (AMA)
Štengl, Václav& Grygar, Tomáš Matys& Velická, Jana& Henych, Jiří& Bakardjieva, Snejana. Impact of Ge4+ Ion as Structural Dopant of Ti4+ in Anatase: Crystallographic Translation, Photocatalytic Behavior, and Efficiency under UV and VIS Irradiation. Journal of Nanomaterials. 2012. Vol. 2012, no. 2012, pp.1-11.
https://search.emarefa.net/detail/BIM-1029169
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1029169