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dc.contributor.authorPraus, Petr
dc.contributor.authorReli, Martin
dc.contributor.authorKočí, Kamila
dc.contributor.authorObalová, Lucie
dc.date.accessioned2013-06-21T06:42:09Z
dc.date.available2013-06-21T06:42:09Z
dc.date.issued2013
dc.identifier.citationApplied Surface Science. 2013, vol. 275, p. 369-373.cs
dc.identifier.issn0169-4332
dc.identifier.urihttp://hdl.handle.net/10084/96428
dc.description.abstractZnS nanoparticles stabilized by cetyltrimethylammonium bromide (CTAB) were deposited on montmorillonite (MMT) forming a ZnS–CTA–MMT nanocomposite. The nanocomposite was characterized by scanning electron microscopy (SEM), Fourier transformed infrared (FTIR) and UV diffuse reflectance spectra (DRS) spectrometry, X-ray powder diffraction (XRD) and specific surface area measurements. Thereafter, it was used for photocatalytic reactions under UV irradiation (Hg lamp) in three different reaction media with different pH: NaOH solution, HCl solution and water. Prior to the photocatalytic reactions the dispersions were saturated by carbon dioxide to buffer the systems. The main reaction products in gas phase determined by gas chromatography were hydrogen and methane. The reactions were monitored by measuring oxidation–reduction potentials. The highest yields of hydrogen were obtained in the dispersion acidified by HCl but the concentrations of methane were similar in all tested media. Hydrogen was supposed to be formed by the reaction of two hydrogen radicals. Methane was formed by the reduction of carbon dioxide and by the partial decomposition of CTAB.cs
dc.language.isoencs
dc.publisherElseviercs
dc.relation.ispartofseriesApplied Surface Sciencecs
dc.relation.urihttp://dx.doi.org/10.1016/j.apsusc.2012.11.155cs
dc.subjectZnS nanoparticlescs
dc.subjectnanocompositecs
dc.subjectmontmorillonitecs
dc.subjectphotocatalysiscs
dc.titlePhotocatalytic reactions of nanocomposite of ZnS nanoparticles and montmorillonitecs
dc.typearticlecs
dc.identifier.locationNení ve fondu ÚKcs
dc.identifier.doi10.1016/j.apsusc.2012.11.155
dc.type.statusPeer-reviewedcs
dc.description.sourceWeb of Sciencecs
dc.description.volume275cs
dc.description.lastpage373cs
dc.description.firstpage369cs
dc.identifier.wos000318977300057


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