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Se and Te-modified titania for photocatalytic applications

SYSNO ASEP	0359188
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Se and Te-modified titania for photocatalytic applications
Author(s)	Štengl, Václav (UACH-T)_{RID, ORCID, SAI} Bakardjieva, Snejana (UACH-T)_{SAI, RID, ORCID} Bludská, Jana (UACH-T)_{RID, SAI}
Source Title	Journal of Materials Science. - : Springer - ISSN 0022-2461 Roč. 46, č. 10 (2011), s. 3523-3536
Number of pages	14 s.
Language	eng - English
Country	US - United States
Keywords	visible-light ; aqueous-solution ; mathylene-blue ; orange -II
Subject RIV	CA - Inorganic Chemistry
R&D Projects	GA203/08/0334 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40320502 - UACH-T (2005-2011)
UT WOS	000287711900034
DOI	10.1007/s10853-011-5262-9
Annotation	Nanosized Se4+ and Te4+, respectively, doped titania was prepared by homogeneous hydrolysis of titanium oxo-sulfate with urea in aqueous solutions in the presence of amorphous selenium and tellurium. The prepared samples were annealing at temperature 200 and 400 A degrees C. The structure of prepared samples was characterized by X-ray powder diffraction (XRD), selected area electron diffraction (SAED), surface area (BET), and porosity determination (BJH). The morphology and microstructure characteristics were obtained by scanning electron microscopy (SEM) and high-resolution electron microscopy (HRTEM). The method of UV/Vis diffuse reflectance spectroscopy was employed to estimate band-gap energies of the Se and Te-doped titania. The photocatalytic activity of the prepared samples was assessed by the photocatalytic decomposition of Orange II dye in an aqueous slurry during irradiation at 365 and 400 nm wavelength.
Workplace	Institute of Inorganic Chemistry
Contact	Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931
Year of Publishing	2012

Number of the records: 1