Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts

Over the years, porphyrins have arisen as exceptional photosensitizers given their ability to act as chlorophyll-mimicking dyes, thus, transferring energy from the light-collecting areas to the reaction centers, as it happens in natural photosynthesis. For this reason, porphyrin-sensitized TiO(2)-ba...

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Autores principales: Vaz, Belén, Pérez-Lorenzo, Moisés
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10059665/
https://www.ncbi.nlm.nih.gov/pubmed/36985991
http://dx.doi.org/10.3390/nano13061097
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author Vaz, Belén
Pérez-Lorenzo, Moisés
author_facet Vaz, Belén
Pérez-Lorenzo, Moisés
author_sort Vaz, Belén
collection PubMed
description Over the years, porphyrins have arisen as exceptional photosensitizers given their ability to act as chlorophyll-mimicking dyes, thus, transferring energy from the light-collecting areas to the reaction centers, as it happens in natural photosynthesis. For this reason, porphyrin-sensitized TiO(2)-based nanocomposites have been widely exploited in the field of photovoltaics and photocatalysis in order to overcome the well-known limitations of these semiconductors. However, even though both areas of application share some common working principles, the development of solar cells has led the way in what is referred to the continuous improvement of these architectures, particularly regarding the molecular design of these photosynthetic pigments. Yet, those innovations have not been efficiently translated to the field of dye-sensitized photocatalysis. This review aims at filling this gap by performing an in-depth exploration of the most recent advances in the understanding of the role played by the different structural motifs of porphyrins as sensitizers in light-driven TiO(2)-mediated catalysis. With this goal in mind, the chemical transformations, as well as the reaction conditions under which these dyes must operate, are taken in consideration. The conclusions drawn from this comprehensive analysis offer valuable hints for the implementation of novel porphyrin–TiO(2) composites, which may pave the way toward the fabrication of more efficient photocatalysts.
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spelling pubmed-100596652023-03-30 Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts Vaz, Belén Pérez-Lorenzo, Moisés Nanomaterials (Basel) Review Over the years, porphyrins have arisen as exceptional photosensitizers given their ability to act as chlorophyll-mimicking dyes, thus, transferring energy from the light-collecting areas to the reaction centers, as it happens in natural photosynthesis. For this reason, porphyrin-sensitized TiO(2)-based nanocomposites have been widely exploited in the field of photovoltaics and photocatalysis in order to overcome the well-known limitations of these semiconductors. However, even though both areas of application share some common working principles, the development of solar cells has led the way in what is referred to the continuous improvement of these architectures, particularly regarding the molecular design of these photosynthetic pigments. Yet, those innovations have not been efficiently translated to the field of dye-sensitized photocatalysis. This review aims at filling this gap by performing an in-depth exploration of the most recent advances in the understanding of the role played by the different structural motifs of porphyrins as sensitizers in light-driven TiO(2)-mediated catalysis. With this goal in mind, the chemical transformations, as well as the reaction conditions under which these dyes must operate, are taken in consideration. The conclusions drawn from this comprehensive analysis offer valuable hints for the implementation of novel porphyrin–TiO(2) composites, which may pave the way toward the fabrication of more efficient photocatalysts. MDPI 2023-03-18 /pmc/articles/PMC10059665/ /pubmed/36985991 http://dx.doi.org/10.3390/nano13061097 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Review
Vaz, Belén
Pérez-Lorenzo, Moisés
Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title_full Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title_fullStr Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title_full_unstemmed Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title_short Unraveling Structure–Performance Relationships in Porphyrin-Sensitized TiO(2) Photocatalysts
title_sort unraveling structure–performance relationships in porphyrin-sensitized tio(2) photocatalysts
topic Review
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10059665/
https://www.ncbi.nlm.nih.gov/pubmed/36985991
http://dx.doi.org/10.3390/nano13061097
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