Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst

Unprecedented metal‐free photocatalytic CO(2) conversion to CO (up to 228±48 μmol g(−1) h(−1)) was displayed by TiO(2)@IL hybrid photocatalysts prepared by simple impregnation of commercially available P25‐titanium dioxide with imidazolium‐based ionic liquids (ILs). The high activity of TiO(2)@IL hy...

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Autores principales: Qadir, Muhammad I., Zanatta, Marcileia, Pinto, Jose, Vicente, Isabel, Gual, Aitor, Smith, Emily F., Neto, Brenno A. D., de Souza, Paulo E. N., Khan, Sherdil, Dupont, Jairton, Alves Fernandes, Jesum
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2020
Materias:
Full Papers
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7692890/
https://www.ncbi.nlm.nih.gov/pubmed/33448661
http://dx.doi.org/10.1002/cssc.202001717
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author Qadir, Muhammad I.
Zanatta, Marcileia
Pinto, Jose
Vicente, Isabel
Gual, Aitor
Smith, Emily F.
Neto, Brenno A. D.
de Souza, Paulo E. N.
Khan, Sherdil
Dupont, Jairton
Alves Fernandes, Jesum
author_facet Qadir, Muhammad I.
Zanatta, Marcileia
Pinto, Jose
Vicente, Isabel
Gual, Aitor
Smith, Emily F.
Neto, Brenno A. D.
de Souza, Paulo E. N.
Khan, Sherdil
Dupont, Jairton
Alves Fernandes, Jesum
author_sort Qadir, Muhammad I.
collection PubMed
description Unprecedented metal‐free photocatalytic CO(2) conversion to CO (up to 228±48 μmol g(−1) h(−1)) was displayed by TiO(2)@IL hybrid photocatalysts prepared by simple impregnation of commercially available P25‐titanium dioxide with imidazolium‐based ionic liquids (ILs). The high activity of TiO(2)@IL hybrid photocatalysts was mainly associated to (i) TiO(2)@IL red shift compared to the pure TiO(2) absorption, and thus a modification of the TiO(2) surface electronic structure; (ii) TiO(2) with IL bearing imidazolate anions lowered the CO(2) activation energy barrier. The reaction mechanism was postulated to occur via CO(2) photoreduction to formate species by the imidazole/imidazole radical redox pair, yielding CO and water.
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spelling pubmed-76928902020-12-08 Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst Qadir, Muhammad I. Zanatta, Marcileia Pinto, Jose Vicente, Isabel Gual, Aitor Smith, Emily F. Neto, Brenno A. D. de Souza, Paulo E. N. Khan, Sherdil Dupont, Jairton Alves Fernandes, Jesum ChemSusChem Full Papers Unprecedented metal‐free photocatalytic CO(2) conversion to CO (up to 228±48 μmol g(−1) h(−1)) was displayed by TiO(2)@IL hybrid photocatalysts prepared by simple impregnation of commercially available P25‐titanium dioxide with imidazolium‐based ionic liquids (ILs). The high activity of TiO(2)@IL hybrid photocatalysts was mainly associated to (i) TiO(2)@IL red shift compared to the pure TiO(2) absorption, and thus a modification of the TiO(2) surface electronic structure; (ii) TiO(2) with IL bearing imidazolate anions lowered the CO(2) activation energy barrier. The reaction mechanism was postulated to occur via CO(2) photoreduction to formate species by the imidazole/imidazole radical redox pair, yielding CO and water. John Wiley and Sons Inc. 2020-09-07 2020-10-21 /pmc/articles/PMC7692890/ /pubmed/33448661 http://dx.doi.org/10.1002/cssc.202001717 Text en © 2020 The Authors. Published by Wiley-VCH GmbH This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Full Papers
Qadir, Muhammad I.
Zanatta, Marcileia
Pinto, Jose
Vicente, Isabel
Gual, Aitor
Smith, Emily F.
Neto, Brenno A. D.
de Souza, Paulo E. N.
Khan, Sherdil
Dupont, Jairton
Alves Fernandes, Jesum
Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title_full Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title_fullStr Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title_full_unstemmed Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title_short Reverse Semi‐Combustion Driven by Titanium Dioxide‐Ionic Liquid Hybrid Photocatalyst
title_sort reverse semi‐combustion driven by titanium dioxide‐ionic liquid hybrid photocatalyst
topic Full Papers
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7692890/
https://www.ncbi.nlm.nih.gov/pubmed/33448661
http://dx.doi.org/10.1002/cssc.202001717
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