Počet záznamů: 1
Preparation and characterization of ZnS nanoparticles deposited on montmorillonite
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SYSNO ASEP 0358016 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Preparation and characterization of ZnS nanoparticles deposited on montmorillonite Tvůrce(i) Kozák, O. (CZ)
Praus, P. (CZ)
Kočí, K. (CZ)
Klementová, Mariana (UACH-T) RID, SAI, ORCIDZdroj.dok. Journal of Colloid and Interface Science. - : Elsevier - ISSN 0021-9797
Roč. 352, č. 2 (2010), s. 244-251Poč.str. 8 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova ZnS nanoparticles ; montmorillonite ; photoluminescence ; photocatalysis ; carbon dioxide Vědní obor RIV CA - Anorganická chemie CEZ AV0Z40320502 - UACH-T (2005-2011) UT WOS 000284180100004 DOI 10.1016/j.jcis.2010.09.016 Anotace ZnS nanoparticles were prepared and deposited on montmorillonite (MMT) in the presence of cetyltri-methylammonium (CTA) UV spectrometry and transmission electron microscopy (TEM) proved the formation of nanoparticles with diameters ranging from 3 nm to 5 nm Selected area electron diffraction (SAED) patterns revealed the presence of romboedric ZnS The band gap energy of nanosize ZnS was estimated at 3 89 +/- 0 03 eV Photoluminescence spectra exhibited a strong emission band between 300 nm and 600 nm explained by the vacant ZnS nanostructure. The prepared ZnS-montmorillonite nanocomposite (ZnS-MMT) was used for the photocatalytic reduction of CO2 providing a considerably high efficiency that exceeded 5-6 fold the results of commercial TiO2 Degussa P25. The stability of ZnS against oxidation was confirmed by the determination of sulphate using capillary isotachophoresis. Pracoviště Ústav anorganické chemie Kontakt Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Rok sběru 2011
Počet záznamů: 1