Composite photocatalyst based on TiO2- active carbon

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F17%3A43913860" target="_blank" >RIV/60461373:22310/17:43913860 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Composite photocatalyst based on TiO2- active carbon

Popis výsledku v původním jazyce

Composite photocatalysts based on TiO2 - active carbon (AC) are promising materials for pollutant removal due to the combination of high adsorption ability of AC and photocatalytic activity of TiO2. The objective of this work was to determine the influence of the TiO2/AC fraction on the photocatalytic efficiency of pollutant removal in gaseous (using standard ISO methods) and liquid phase. It was observed that the composite photocatalyst TiO2-AC exhibits a synergistic increase of pollutant removing ability which can be demonstrated on removal of NOx from the gaseous phase. In the case of pure TiO2, under UV irradiation the concentration of inlet NO decreases but the concentration of NO2 (in fact more toxic than the initial NO) increases. This is caused by the accumulation of HNO3 on the surface of TiO2 which reacts with NO to NO2. Composites TiO2-AC exhibit much higher resistance to nitric acid accumulation compared to pure TiO2 due to the significantly higher surface area (460 m2/g) in relation to pure TiO2 (45 m2/g).

Název v anglickém jazyce

Composite photocatalyst based on TiO2- active carbon

Popis výsledku anglicky

Composite photocatalysts based on TiO2 - active carbon (AC) are promising materials for pollutant removal due to the combination of high adsorption ability of AC and photocatalytic activity of TiO2. The objective of this work was to determine the influence of the TiO2/AC fraction on the photocatalytic efficiency of pollutant removal in gaseous (using standard ISO methods) and liquid phase. It was observed that the composite photocatalyst TiO2-AC exhibits a synergistic increase of pollutant removing ability which can be demonstrated on removal of NOx from the gaseous phase. In the case of pure TiO2, under UV irradiation the concentration of inlet NO decreases but the concentration of NO2 (in fact more toxic than the initial NO) increases. This is caused by the accumulation of HNO3 on the surface of TiO2 which reacts with NO to NO2. Composites TiO2-AC exhibit much higher resistance to nitric acid accumulation compared to pure TiO2 due to the significantly higher surface area (460 m2/g) in relation to pure TiO2 (45 m2/g).

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/LTACH17007" target="_blank" >LTACH17007: Kompozitní fotokatalyzátory na bázi TiO2 - aktivní uhlí pro čištění vody a vzduchu</a><br>

Návaznosti

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

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

X. konference Pigmenty a pojiva

ISBN

978-80-906269-2-8

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

7

Strana od-do

18-24

Název nakladatele

CHEMAGAZÍN s.r.o.

Místo vydání

Pardubice

Místo konání akce

Seč

Datum konání akce

6. 11. 2017

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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