Detalhes bibliográficos
| Resumo: | Unprecedented metal-free photocatalytic CO2 conversion to CO (up to 228±48 μmol g−1 h−1) was displayed by TiO2@IL hybrid photocatalysts prepared by simple impregnation of commercially available P25-titanium dioxide with imidazolium-based ionic liquids (ILs). The high activity of TiO2@IL hybrid photocatalysts was mainly associated to (i) TiO2@IL red shift compared to the pure TiO2 absorption, and thus a modification of the TiO2 surface electronic structure; (ii) TiO2 with IL bearing imidazolate anions lowered the CO2 activation energy barrier. The reaction mechanism was postulated to occur via CO2 photoreduction to formate species by the imidazole/imidazole radical redox pair, yielding CO and water. |
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| Autores principais: | Qadir, Muhammad I. |
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| Outros Autores: | Zanatta, Marcileia; Pinto, José; Vicente, Isabel; Gual, Aitor; Smith, Emily F.; Neto, Brenno A.D.; de Souza, Paulo E. N.; Khan, Sherdil; Dupont, Jairton; Alves Fernandes, Jesum |
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| Assunto: | carbon dioxide carbon monoxide ionic liquids photocatalysis titania Environmental Chemistry General Chemical Engineering General Materials Science General Energy |
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| Ano: | 2020 |
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| País: | Portugal |
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| Tipo de documento: | artigo |
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| Tipo de acesso: | acesso aberto |
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| Instituição associada: | Universidade Nova de Lisboa |
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| Idioma: | inglês |
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| Origem: | Repositório Institucional da UNL |
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