Preparation and characterization of photoactive composite kaolinite/TiO2

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Show simple item record Mamulová Kutláková, Kateřina Tokarský, Jonáš Kovář, Pavel Vojtěšková, Silvie Kovářová, A. Smetana, Bedřich Kukutschová, Jana Čapková, Pavla Matějka, Vlastimil 2011-05-03T11:42:50Z 2011-05-03T11:42:50Z 2011
dc.identifier.citation Journal of hazardous materials. 2011, vol. 188, issues 1-3, p. 212-220. en
dc.identifier.issn 0304-3894
dc.description.abstract Preparation of nanocomposite kaolinite/TiO2, using hydrolysis of titanyl sulfate in the presence of kaolin was addressed. A variable (kaolin)/(titanyl sulfate) ratio has been used in order to achieve the desired TiO2 content in prepared nanocomposites. Calcination of the composites at 600 °C led to the transformation of the kaolinite to metakaolinite and to origination of metakaolinite/TiO2 composites. The prepared samples were investigated using X-ray fluorescence spectroscopy, X-ray powder diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, thermogravimetry and diffuse reflectance spectroscopy in the UV–VIS region. Structural ordering of TiO2 on the kaolinite particle surface was modeled using empirical force field atomistic simulations in the Material Studio modeling environment. Photodegradation activity of the composites prepared was evaluated by the discoloration of Acid Orange 7 aqueous solution. en
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.ispartofseries Journal of hazardous materials en
dc.relation.uri en
dc.subject Kaolin en
dc.subject TiO2 en
dc.subject composite en
dc.subject photoactivity en
dc.title Preparation and characterization of photoactive composite kaolinite/TiO2 en
dc.type article en
dc.identifier.location Není ve fondu ÚK en
dc.identifier.doi 10.1016/j.jhazmat.2011.01.106
dc.identifier.wos 000289334300030

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