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Sulphur doped nanoparticles of TiO2
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SYSNO ASEP 0359711 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Sulphur doped nanoparticles of TiO2 Author(s) Szatmáry, Lórant (UFCH-W)
Bakardjieva, Snejana (UACH-T) SAI, RID, ORCID
Šubrt, Jan (UACH-T) SAI, RID
Bezdička, Petr (UACH-T) SAI, RID, ORCID
Jirkovský, Jaromír (UFCH-W) RID
Bastl, Zdeněk (UFCH-W) RID, ORCID
Brezová, V. (SK)
Korenko, M. (SK)Source Title Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 161, č. 1 (2011), s. 23-28Number of pages 6 s. Language eng - English Country NL - Netherlands Keywords photocatalyst ; S-doped TiO2 ; Thiourea Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects 1M0577 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z40400503 - UFCH-W (2005-2011) AV0Z40320502 - UACH-T (2005-2011) UT WOS 000287730900006 DOI 10.1016/j.cattod.2010.11.082 Annotation Sulphur doped nanoparticles of titanium dioxide were prepared by the reaction of titanium butoxide and thiourea in methanol. X-ray powder diffraction and High resolution transmission electron microscopy were used to investigate the crystallinity of the prepared nanoparticles. Based on the X-ray photoelectron spectroscopy measurements sulphur is present in the form of S6+ which substitutes Ti4+ in the titania lattice. The band gap energies of synthesised photocatalyst were calculated from the fitting of experimental dependences by double Boltzmann symmetrical functions. The photocatalytic activity of the samples was determinated by the measurement of the 4-chlorophenol (4-CP) degradation in the aqueous suspensions in the ultraviolet and visible region. Electron paramagnetic resonance spectroscopy confirmed the generation of (OH)-O-center dot radicals from S doped TiO2 under vis and UV irradiation. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2012
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