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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F10%3A86077553%21RIV11-MSM-27360___
rdf:type
n14:Vysledek skos:Concept
dcterms:description
The kaolinite/TiO2 composite was prepared using thermal hydrolysis of kaolinite/titanyl sulphate suspension and characterized by XRFS, XRPD, SEM and N2 physical adsorption. Its photocatalytic properties were evaluated by photocatalytic reduction of CO2 by water and compared with commercial TiO2 photocatalyst Degussa P25. Results showed that the yields of CO2 photocatalytic reduction products methane and methanol were higher over a kaolinite/TiO2 composite than over commercial TiO2 (Degussa P25) in spite of smaller proportion of TiO2 in the composite. Introducing of TiO2 nanoparticles into the kaolinite structure caused a decrease of anatase crystallite size. Kaolinite can also change acidobasic properties of catalyst surface, inhibit the recombination of electron-hole pairs and prevent the formation of TiO2 aggregates in suspension. These facts can contribute to the observed higher photocatalytic efficiency of kaolinite/TiO2 compared to the commercial TiO2 photocatalyst. The kaolinite/TiO2 composite was prepared using thermal hydrolysis of kaolinite/titanyl sulphate suspension and characterized by XRFS, XRPD, SEM and N2 physical adsorption. Its photocatalytic properties were evaluated by photocatalytic reduction of CO2 by water and compared with commercial TiO2 photocatalyst Degussa P25. Results showed that the yields of CO2 photocatalytic reduction products methane and methanol were higher over a kaolinite/TiO2 composite than over commercial TiO2 (Degussa P25) in spite of smaller proportion of TiO2 in the composite. Introducing of TiO2 nanoparticles into the kaolinite structure caused a decrease of anatase crystallite size. Kaolinite can also change acidobasic properties of catalyst surface, inhibit the recombination of electron-hole pairs and prevent the formation of TiO2 aggregates in suspension. These facts can contribute to the observed higher photocatalytic efficiency of kaolinite/TiO2 compared to the commercial TiO2 photocatalyst.
dcterms:title
Comparison of the Pure TiO2 and Kaolinite/TiO2 Composite as Catalyst for CO2 Photocatalytic Reduction. Comparison of the Pure TiO2 and Kaolinite/TiO2 Composite as Catalyst for CO2 Photocatalytic Reduction.
skos:prefLabel
Comparison of the Pure TiO2 and Kaolinite/TiO2 Composite as Catalyst for CO2 Photocatalytic Reduction. Comparison of the Pure TiO2 and Kaolinite/TiO2 Composite as Catalyst for CO2 Photocatalytic Reduction.
skos:notation
RIV/61989100:27360/10:86077553!RIV11-MSM-27360___
n3:aktivita
n4:P n4:Z
n3:aktivity
P(FT-TA4/025), Z(MSM6198910019)
n3:dodaniDat
n19:2011
n3:domaciTvurceVysledku
n18:3750396 n18:3453928
n3:druhVysledku
n15:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n13:predkladatel
n3:idSjednocenehoVysledku
251549
n3:idVysledku
RIV/61989100:27360/10:86077553
n3:jazykVysledku
n8:eng
n3:klicovaSlova
photocatalytic reduction; kaolinite/TiO2 composite; TiO2
n3:klicoveSlovo
n7:TiO2 n7:kaolinite%2FTiO2%20composite n7:photocatalytic%20reduction
n3:kontrolniKodProRIV
[69B3CF775BDC]
n3:mistoKonaniAkce
Praha, Česká republika
n3:mistoVydani
Praha
n3:nazevZdroje
Proceedings of the 6th European Meeting on Solar Chemistry and Photocatalysis: Environmental Applications
n3:obor
n20:JE
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
6
n3:projekt
n22:FT-TA4%2F025
n3:rokUplatneniVysledku
n19:2010
n3:tvurceVysledku
Obalová, Lucie Kovář, Pavel Kočí, Kamila Lacný, Zdenek Plachá, Daniela Matějka, Vlastimil
n3:typAkce
n16:EUR
n3:zahajeniAkce
2010-06-13+02:00
n3:zamer
n5:MSM6198910019
s:numberOfPages
2
n10:hasPublisher
ITC Prague Press
n11:isbn
978-80-7080-750-7
n6:organizacniJednotka
27360