Effect of Kaolinite Exfoliation on the Photocatalytic Properties of Kaolinite/TiO2 Composite

Kód výsledku v IS VaVaI

RIV/61989100:27640/14:86092017 - isvavai.cz

Výsledek na webu

http://dx.doi.org/10.1166/asem.2014.1525

DOI - Digital Object Identifier

10.1166/asem.2014.1525

Jazyk výsledku

angličtina

Název v původním jazyce

Effect of Kaolinite Exfoliation on the Photocatalytic Properties of Kaolinite/TiO2 Composite

Popis výsledku v původním jazyce

Photocatalytically active composites based on the nanostructured TiO2 fixed on the surface of raw and exfoliated kaolinite were prepared. Exfoliation of the kaolinite was achieved after the thermal treatment of the kaolinite previously intercalated withurea. It was observed that the introduction of urea into kaolinite interlayer significantly increases the dehydroxylation rate even at the relatively low temperature 500°C. The exfoliation of kaolinite led to increasing of specific surface area from 14.3m2/g measured for original kaolinite to 24.3 m2/g obtained for exfoliated kaolinite. Kaolinite/TiO2 composites with 50 wt.% of TiO2 were prepared using thermal hydrolysis of titanyl sulphate. Prepared composites were further thermally treated at 500°C and characterized using X-ray fluorescence spectroscopy and X-ray diffraction method. It was observed that higher yield of TiO2 was achieved for the composites prepared using exfoliated kaolinite and it was proved that TiO2 occurs in anata

Název v anglickém jazyce

Effect of Kaolinite Exfoliation on the Photocatalytic Properties of Kaolinite/TiO2 Composite

Popis výsledku anglicky

Photocatalytically active composites based on the nanostructured TiO2 fixed on the surface of raw and exfoliated kaolinite were prepared. Exfoliation of the kaolinite was achieved after the thermal treatment of the kaolinite previously intercalated withurea. It was observed that the introduction of urea into kaolinite interlayer significantly increases the dehydroxylation rate even at the relatively low temperature 500°C. The exfoliation of kaolinite led to increasing of specific surface area from 14.3m2/g measured for original kaolinite to 24.3 m2/g obtained for exfoliated kaolinite. Kaolinite/TiO2 composites with 50 wt.% of TiO2 were prepared using thermal hydrolysis of titanyl sulphate. Prepared composites were further thermally treated at 500°C and characterized using X-ray fluorescence spectroscopy and X-ray diffraction method. It was observed that higher yield of TiO2 was achieved for the composites prepared using exfoliated kaolinite and it was proved that TiO2 occurs in anata

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

LH12184: Nová nanostrukturovaná plniva pro polymerní kompozity

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Science, Engineering and Medicine

ISSN

2164-6627

e-ISSN

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Svazek periodika

6

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

490-494

Kód UT WoS článku

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EID výsledku v databázi Scopus

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