A NEW GAS PHASE PHOTOCATALYTIC REACTOR FOR CO2 CONVERSION: OPTIMAL PHOTOREDUCTION CONDITIONS WITH TiO2 P25 PHOTOCATALYST

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F15%3A10238617" target="_blank" >RIV/61989100:27710/15:10238617 - 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

A NEW GAS PHASE PHOTOCATALYTIC REACTOR FOR CO2 CONVERSION: OPTIMAL PHOTOREDUCTION CONDITIONS WITH TiO2 P25 PHOTOCATALYST

Popis výsledku v původním jazyce

In this work, a new gas phase photocatalytic reduction system was designed to convert CO2 into fuels. The optimal conditions (such as humidity, initial concentration of CO2 and the placement of powder photocatalyst in the reactor) for CO2 photocatalytic reduction were systematically investigated with the commercial photocatalyst TiO2 Evonik P25 in the homemade gas phase reactor. Methane (CH4) and hydrogen (H2) were the main products. Also carbon monoxide (CO) was detected. The photocatalytic reduction rate was decreasing with increasing dilution of CO2 by Helium. The humidity is the key role for the CO2 photocatalytic reduction as the source of needed H+ and hydroxyl radicals, the best value of relative humidity was experimentally set to 51.8% leading to the highest yields of all products (CH4, H2 and CO). In addition, the photocatalytic conversion was also influenced by the different placement of photocatalyst, the perfectly spread sample which possessed more effective gas-solid contact showed higher conversion than that of piled one

Název v anglickém jazyce

A NEW GAS PHASE PHOTOCATALYTIC REACTOR FOR CO2 CONVERSION: OPTIMAL PHOTOREDUCTION CONDITIONS WITH TiO2 P25 PHOTOCATALYST

Popis výsledku anglicky

In this work, a new gas phase photocatalytic reduction system was designed to convert CO2 into fuels. The optimal conditions (such as humidity, initial concentration of CO2 and the placement of powder photocatalyst in the reactor) for CO2 photocatalytic reduction were systematically investigated with the commercial photocatalyst TiO2 Evonik P25 in the homemade gas phase reactor. Methane (CH4) and hydrogen (H2) were the main products. Also carbon monoxide (CO) was detected. The photocatalytic reduction rate was decreasing with increasing dilution of CO2 by Helium. The humidity is the key role for the CO2 photocatalytic reduction as the source of needed H+ and hydroxyl radicals, the best value of relative humidity was experimentally set to 51.8% leading to the highest yields of all products (CH4, H2 and CO). In addition, the photocatalytic conversion was also influenced by the different placement of photocatalyst, the perfectly spread sample which possessed more effective gas-solid contact showed higher conversion than that of piled one

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20501 - Materials engineering

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název statě ve sborníku

NANOCON 2015: 7th international conference : proceedings of abstracts

ISBN

978-80-87294-59-8

ISSN

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e-ISSN

neuvedeno

Počet stran výsledku

6

Strana od-do

236-241

Název nakladatele

Tanger

Místo vydání

Ostrava

Místo konání akce

Brno

Datum konání akce

14. 10. 2015

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000374708800041