Photocatalytic reduction of carbon dioxide over Cu/TiO2 photocatalysts

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F18%3A39913339" target="_blank" >RIV/00216275:25310/18:39913339 - isvavai.cz</a>
Alternative codes found
RIV/61989100:27710/18:10240194
Result on the web
<a href="http://dx.doi.org/10.1007/s11356-017-0944-8" target="_blank" >http://dx.doi.org/10.1007/s11356-017-0944-8</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s11356-017-0944-8" target="_blank" >10.1007/s11356-017-0944-8</a>

Result language
angličtina
Original language name
Photocatalytic reduction of carbon dioxide over Cu/TiO2 photocatalysts
Original language description
The photocatalytic reduction of CO2 with H2O was investigated using Cu/TiO2 photocatalysts in aqueous solution. For this purpose, Cu/TiO2 photocatalysts (with 0.2, 0.9, 2, 4, and 6 wt.% of Cu) have been synthesized via sol-gel method. The photocatalysts were extensively characterized by means of inductively coupled plasma optical emission spectrometry (ICP-OES), N-2 physisorption (BET), XRD, UV-vis DRS, FT-IR, Raman spectroscopy, TEM-EDX, and photoelectrochemical measurements. The as-prepared photocatalysts contain anatase as a major crystalline phase with a crystallite size around 13 nm. By increasing the amount of Cu, specific surface area and band gap energy decreased in addition to the formation of large agglomeration of CuO. Results revealed that the photocatalytic reduction of CO2 decreased in the presence of Cu/TiO2 in comparison to pure TiO2, which might be associated to the formation of CuO phase acting as a recombination center of generated electron-hole pair. Decreasing of photoactivity can also be connected with a very low position of conduction band of photocatalysts with high Cu content, which makes H-2 production necessary for CO2 reduction more difficult.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20701 - Environmental and geological engineering, geotechnics

Project
<a href="/en/project/ED2.1.00%2F19.0388" target="_blank" >ED2.1.00/19.0388: Expanded and refined instrumentation IET</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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