Copper and Platinum Doped Titania for Photocatalytic Reduction of Carbon Dioxide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27710%2F18%3A10240188" target="_blank" >RIV/61989100:27710/18:10240188 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0169433217319621" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0169433217319621</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.apsusc.2017.06.307" target="_blank" >10.1016/j.apsusc.2017.06.307</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Copper and Platinum Doped Titania for Photocatalytic Reduction of Carbon Dioxide

Popis výsledku v původním jazyce

The parent TiO2, platinum and copper doped TiO2 photocatalysts with 0.5-2 wt. % of Pt, 0.5-2 wt. %Cu and 1 wt. % Pt combined with 1 wt. % Cu were prepared by the sol-gel method. All the prepared photocatalysts were tested for the CO2 photocatalytic reduction in a stirred batch reactor. The main reaction product was methane, however, hydrogen and carbon monoxide were also detected. The textural, (micro)structural, optical and electronic properties of photocatalysts were characterized in detailby low-temperature nitrogen physisorption, X-ray powder diffraction, EDX, HRTEM, X-ray fluorescence,X-ray photon spectroscopy, scanning electron microscope, transmission electron microscope and diffuse reflectance UV-vis spectroscopy. The photoelectrochemical characteristics of the photocatalysts were determined using photoelectric spectrometry. The highest yields of CH4, H2 and CO were achieved in the presence of 2 wt. % Cu/TiO2, 0.5 wt. % Cu/TiO2 and pure, amorphous TiO2. Based on the conducted experiments it was suggested that both the amount of chemisorbed oxygen or/and hydroxyl species onthe TiO2 surface and specific surface area of photocatalyst highly influence its photocatalytic activity.

Název v anglickém jazyce

Copper and Platinum Doped Titania for Photocatalytic Reduction of Carbon Dioxide

Popis výsledku anglicky

The parent TiO2, platinum and copper doped TiO2 photocatalysts with 0.5-2 wt. % of Pt, 0.5-2 wt. %Cu and 1 wt. % Pt combined with 1 wt. % Cu were prepared by the sol-gel method. All the prepared photocatalysts were tested for the CO2 photocatalytic reduction in a stirred batch reactor. The main reaction product was methane, however, hydrogen and carbon monoxide were also detected. The textural, (micro)structural, optical and electronic properties of photocatalysts were characterized in detailby low-temperature nitrogen physisorption, X-ray powder diffraction, EDX, HRTEM, X-ray fluorescence,X-ray photon spectroscopy, scanning electron microscope, transmission electron microscope and diffuse reflectance UV-vis spectroscopy. The photoelectrochemical characteristics of the photocatalysts were determined using photoelectric spectrometry. The highest yields of CH4, H2 and CO were achieved in the presence of 2 wt. % Cu/TiO2, 0.5 wt. % Cu/TiO2 and pure, amorphous TiO2. Based on the conducted experiments it was suggested that both the amount of chemisorbed oxygen or/and hydroxyl species onthe TiO2 surface and specific surface area of photocatalyst highly influence its photocatalytic activity.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

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

2018

Kód důvěrnosti údajů

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

Název periodika

Applied Surface Science

ISSN

0169-4332

e-ISSN

—

Svazek periodika

430

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

475-487

Kód UT WoS článku

000416961500044

EID výsledku v databázi Scopus

2-s2.0-85023600854