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Mechanochemical Synthesis of Visible Light Sensitive Titanium Dioxide Photocatalyst
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SYSNO ASEP 0369876 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Mechanochemical Synthesis of Visible Light Sensitive Titanium Dioxide Photocatalyst Tvůrce(i) Šubrt, Jan (UACH-T) SAI, RID
Criado, J. M. (ES)
Szatmáry, Lórant (UACH-T) RID, ORCID, SAI
Diánez, M.J. (ES)
Murafa, Nataliya (UACH-T) RID, SAI
Pérez-Maqueda, L. A. (ES)
Brezová, V. (SK)Zdroj.dok. International Journal of Photoenergy - ISSN 1110-662X
-, - (2011), 156941/1-156941/9Poč.str. 9 s. Jazyk dok. eng - angličtina Země vyd. EG - Egypt Klíč. slova S-doped TiO2 ; emanation thermal - analysis ; oxide photocatalysts ; EPR spectroscopy ; methylene-blue ; surface.area ; anatase TiO2 Vědní obor RIV CA - Anorganická chemie CEP 1M0577 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000292452300001 DOI 10.1155/2011/156941 Anotace Phase transition of anatase nanoparticles into the phases TiO(2)-II and rutile under grinding was studied. The addition of ammonium carbamate to the reaction mixture inhibits the phase conversion and the cold welding of particles. The UV-visible absorption spectrum showed narrowing the band gap width after grinding with an ammonium carbamate additive resulting in shift of the light absorption of the ground sample towards the visible region. By EPR, intensive formation of OH(center dot) radical at irradiation of the sample with both UV (lambda > 300 nm) and visible (lambda > 435 nm) light was observed. High photocatalytic activity of the ground sample in visible light region was demonstrated also by measurement of kinetics of the photocatalytic decomposition of 4-chlorophenol. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2012
Počet záznamů: 1