Preparation of TiO2-SiO2 composite photocatalysts for environmental applications

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F14%3A00434565" target="_blank" >RIV/61388955:_____/14:00434565 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/14:43898449

Výsledek na webu

<a href="http://dx.doi.org/10.1002/jctb.4436" target="_blank" >http://dx.doi.org/10.1002/jctb.4436</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jctb.4436" target="_blank" >10.1002/jctb.4436</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Preparation of TiO2-SiO2 composite photocatalysts for environmental applications

Popis výsledku v původním jazyce

BACKGROUND: The objective of this work is to prepare various TiO2/SiO2 composites, determine their photocatalytic activity and suggest the most promising materials for further application. RESULTS: TiO2/SiO2 composites were successfully prepared as a powder, obtained by the heterocoagulation of mixed TiO2 and SiO2 aqueous colloidal suspensions. The heterocoagulation of prepared amorphous TiO2 in the presence of SiO2 led to the crystallization of TiO2 with anatase structure. Photocatalytic activity was tested in the liquid phase by dye degradation and in the gas phase by hexane degradation. In aqueous phase the presence of SiO2 increased the rate of degradation of Methylene Blue in comparison with pure TiO2 in acidic conditions, whereas Acid Orange 7 photodegradation was faster in basic solution in the presence of TiO2/SiO2 1:1 composite. In gaseous phase, composites prepared by heterocoagulation showed improved photoactivity (conversion around 35%). CONCLUSION: Composites prepared by h

Název v anglickém jazyce

Preparation of TiO2-SiO2 composite photocatalysts for environmental applications

Popis výsledku anglicky

BACKGROUND: The objective of this work is to prepare various TiO2/SiO2 composites, determine their photocatalytic activity and suggest the most promising materials for further application. RESULTS: TiO2/SiO2 composites were successfully prepared as a powder, obtained by the heterocoagulation of mixed TiO2 and SiO2 aqueous colloidal suspensions. The heterocoagulation of prepared amorphous TiO2 in the presence of SiO2 led to the crystallization of TiO2 with anatase structure. Photocatalytic activity was tested in the liquid phase by dye degradation and in the gas phase by hexane degradation. In aqueous phase the presence of SiO2 increased the rate of degradation of Methylene Blue in comparison with pure TiO2 in acidic conditions, whereas Acid Orange 7 photodegradation was faster in basic solution in the presence of TiO2/SiO2 1:1 composite. In gaseous phase, composites prepared by heterocoagulation showed improved photoactivity (conversion around 35%). CONCLUSION: Composites prepared by h

Druh

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

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Journal of Chemical Technology and Biotechnology

ISSN

0268-2575

e-ISSN

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Svazek periodika

89

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

7

Strana od-do

1129-1135

Kód UT WoS článku

000339493200003

EID výsledku v databázi Scopus

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