Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
Copyright policy )Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
AbstractUnprecedented 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.
- University of Brasília Brazil
- Universidade Nova de Lisboa Portugal
- University of Nottingham United Kingdom
- Universidade Brasil Brazil
- FUNDACIO EURECAT Spain
General Chemical Engineering, carbon dioxide, Full Papers, carbon monoxide, ionic liquids, General Energy, Materials Science(all), Energy(all), Chemical Engineering(all), Environmental Chemistry, titania, General Materials Science, photocatalysis
General Chemical Engineering, carbon dioxide, Full Papers, carbon monoxide, ionic liquids, General Energy, Materials Science(all), Energy(all), Chemical Engineering(all), Environmental Chemistry, titania, General Materials Science, photocatalysis
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