Pt/TiO2 photocatalysts deposited on commercial support for photocatalytic reduction of CO2

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F18%3A10240279" target="_blank" >RIV/61989100:27710/18:10240279 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.jphotochem.2018.04.012" target="_blank" >https://doi.org/10.1016/j.jphotochem.2018.04.012</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jphotochem.2018.04.012" target="_blank" >10.1016/j.jphotochem.2018.04.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Pt/TiO2 photocatalysts deposited on commercial support for photocatalytic reduction of CO2

Popis výsledku v původním jazyce

Pt/TiO2 (PC500) photocatalysts with different amount of Pt (0.5-3.0 wt.%) deposited on commercial support (Al2O3 foam) were-characterized in detail.by-X-ray powder diffrartion, nitrogen physisorption measurement, UV-vis diffuse reflectance spectroscopy, inductively coupled plasma optical emission spectrometry (ICP-OES), photoelectrochemical measurements and tested for CO2 photocatalytic reduction and compared with commercial anatase TiO2 PC500. The main reaction product was methane; however, hydrogen and carbon monoxide were also detected. The highest yields of CH4, H-2 and CO were achieved in the presence of 1.5 wt.% PtiTiO(2). Base on the performed experiments, it was suggested that the key role in the CO2 photocatalytic reduction plays the potentials of electrons and holes within the electronic structure of photocatalyst, which were markedly affected by the Pt loading in such a way that it improved the transformation efficiency of CO2 to methane. Significantly higher yields of CO2 photocatalytic reduction were achieved in the presence of photocatalysts deposited on the commercial support compared to the powder photocatalysts. These findings confirmed the great importance of the supports surface areas on photocatalyst activity in photocatalytic reaction. (C) 2018 Elsevier B.V. All rights reserved.

Název v anglickém jazyce

Pt/TiO2 photocatalysts deposited on commercial support for photocatalytic reduction of CO2

Popis výsledku anglicky

Pt/TiO2 (PC500) photocatalysts with different amount of Pt (0.5-3.0 wt.%) deposited on commercial support (Al2O3 foam) were-characterized in detail.by-X-ray powder diffrartion, nitrogen physisorption measurement, UV-vis diffuse reflectance spectroscopy, inductively coupled plasma optical emission spectrometry (ICP-OES), photoelectrochemical measurements and tested for CO2 photocatalytic reduction and compared with commercial anatase TiO2 PC500. The main reaction product was methane; however, hydrogen and carbon monoxide were also detected. The highest yields of CH4, H-2 and CO were achieved in the presence of 1.5 wt.% PtiTiO(2). Base on the performed experiments, it was suggested that the key role in the CO2 photocatalytic reduction plays the potentials of electrons and holes within the electronic structure of photocatalyst, which were markedly affected by the Pt loading in such a way that it improved the transformation efficiency of CO2 to methane. Significantly higher yields of CO2 photocatalytic reduction were achieved in the presence of photocatalysts deposited on the commercial support compared to the powder photocatalysts. These findings confirmed the great importance of the supports surface areas on photocatalyst activity in photocatalytic reaction. (C) 2018 Elsevier B.V. All rights reserved.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/LO1208" target="_blank" >LO1208: Teoretické aspekty energetického zpracování odpadů a ochrany prostředí před negativními dopady</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of Photochemistry and Photobiology A: Chemistry

ISSN

1010-6030

e-ISSN

—

Svazek periodika

366

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

9

Strana od-do

72-80

Kód UT WoS článku

000452577600011

EID výsledku v databázi Scopus

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