Number of the records: 1

Niobium and tantalum doped titania particles

SYSNO ASEP	0357700
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Niobium and tantalum doped titania particles
Author(s)	Štengl, Václav (UACH-T)_{RID, ORCID, SAI} Houšková, Vendula (UACH-T) Bakardjieva, Snejana (UACH-T)_{SAI, RID, ORCID} Murafa, Nataliya (UACH-T)_{RID, SAI} Bezdička, Petr (UACH-T)_{SAI, RID, ORCID}
Source Title	Journal of Materials Research. - : Springer - ISSN 0884-2914 Roč. 25, č. 10 (2010), s. 2015-2024
Number of pages	10 s.
Language	eng - English
Country	US - United States
Keywords	anatase TiO2 nanoparticles ; photocatalytic degradation ; optical-properties
Subject RIV	CA - Inorganic Chemistry
CEZ	AV0Z40320502 - UACH-T (2005-2011)
UT WOS	000282494500019
DOI	10.1557/JMR.2010.0252
Annotation	Niobium and tantalum doped anatase were prepared by thermal hydrolysis of peroxotitanium complex aqueous solutions containing of niobium or tantalum peroxo-complexes at 100 degrees C for 3 clays. Niobium-doping increased the unit cell constants of anatase and changed the morphology of TiO2 from spindle-like to rectangular or square cross section. Nb and Ta doping in the TiO2 nanostructure increases the anatase to rutile transformation temperature to >1000 degrees C. In the visible region, the photocatalytic activity is directly proportional to the concentration and increases with increasing of Nb concentration. The niobium addition enhances the photocatalytic activity of titania in the visible light region.
Workplace	Institute of Inorganic Chemistry
Contact	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Year of Publishing	2011

Number of the records: 1