Autor(es)

Januario, Eliane R. ; Nogueira, Ana F. ; Pastore, Heloise O.

• Tipo de documento: Artigo Científico
• Fonte: Journal of the Brazilian Chemical Society; v. 29, n. 7, p. 11-pg., 2018-07-01.

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 GO 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. (AU)

• Processo FAPESP: 12/08904-3 - Utilização de peneiras moleculares em sistemas fotocatalíticos para a conversão de CO2 e água a hidrocarbonetos
• Beneficiário: Eliane Ribeiro Januário
• Modalidade de apoio: Bolsas no Brasil - Doutorado