| Texto completo | |
| Autor(es): |
Irikura, Kallyni
[1, 2]
;
Lima Perini, Joao Angelo
[1, 2]
;
Silva Flor, Jader Barbosa
[1, 2]
;
Galvao Frem, Regina Celia
[1]
;
Boldrin Zanoni, Maria Valnice
[1, 2]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Sao Paulo State Univ UNESP, Inst Chem, Araraquara, SP - Brazil
[2] Sao Paulo State Univ UNESP, Natl Inst Alternat Technol Detect Toxicol Evaluat, Inst Chem, Araraquara, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF CO2 UTILIZATION; v. 43, JAN 2021. |
| Citações Web of Science: | 0 |
| Resumo | |
This work describes the use of a thin film of Ru-3(BTC)(2) metal-organic framework (MOF) deposited onto Ti/TiO2 nanotubes as a photocathode in CO2 reduction. This approach combines the advantages of the ruthenium MOF as a heterogeneous catalyst and as an agent for trapping CO2 on its active sites, resulting in an eco-friendly technology for photoelectrocatalysis and the photoconversion of CO2 to methanol in aqueous media. Morphological and crystallographic analyses showed that thin films of Ru-3(BTC)(2) MOF could be deposited homogeneously onto anatase TiO2 nanotubes, improving the photocurrent response of the electrode to on/off cycles of UV/Vis light illumination. Under optimized conditions, the Ti/TiO2NT-Ru-3(BTC)(2) electrode produced 314 mu mol L-1 of methanol by photoelectrocatalysis after 3 h, which was 2.3-fold higher than obtained by a photocatalytic process. The results indicated that the construction of multifunctional materials, such as by the deposition of the porous crystalline Ru-3(BTC)(2) MOF onto Ti/TiO2 electrodes, can lead to a new generation of porous photoelectrocatalysts suitable for the capture of CO2 and its selective reduction to methanol. (AU) | |
| Processo FAPESP: | 17/12790-7 - Preparação e caracterização de eletrodos nanoestruturados de TiO2 modificados com estruturas metal orgânico (MOFs) para a aplicação na pré-concentração e redução de CO2 |
| Beneficiário: | Kallyni Irikura |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 16/18057-7 - Redução de CO2 visando à geração de compostos de valor agregado por fotocatálise/fotoeletrocatálise utilizando líquido iônico em reator pressurizado |
| Beneficiário: | João Angelo de Lima Perini |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |