ETS-10 Modified with CuxO Nanoparticles and Their Application for the Conversion of CO2 and Water into Oxygenates
AUTOR(ES)
Januário, Eliane R., Nogueira, Ana F., Pastore, Heloise O.
FONTE
J. Braz. Chem. Soc.
DATA DE PUBLICAÇÃO
2018-07
RESUMO
Photocatalytic reactions to convert CO2 and H2O into solar fuels using only solar irradiation have been investigated in this work. For this purpose, titanosilicate ETS-10 was decorated with Cu2O and CuO nanoparticles and their properties were analyzed by different techniques. The final materials were applied in photoreduction of CO2 in gas phase under 20 h of solar irradiation. In the final, the products oxygen, acetic acid, formaldehyde and methanol were detected by chromatographic techniques. Photoluminescence and electrochemical studies indicate the interaction between CuxO nanoparticles and Ti-O-Ti-O on the surface of ETS-10, corroborating with the results obtained in the photocatalytic experiments. The best CO2 photoconversion efficiencies into methanol were obtained when using ETS-10/CuxO compared to pure ETS-10. Another important finding in this study is the fact that the reactions were carried out in the gas phase and no scavenge donors were employed.
Documentos Relacionados
- Extraction of stevia glycosides with CO2 + water, CO2 + ethanol, and CO2 + water + ethanol
- Partitioning of the Leaf CO2 Exchange into Components Using CO2 Exchange and Fluorescence Measurements.
- Adsorption of ethyl acetate onto modified clays and its regeneration with supercritical CO2
- Simple model for CO2 absorption in a bubbling water column
- Photosynthesis and Growth of Water Hyacinth under CO2 Enrichment 1