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Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction

Utilising captured CO(2) and converting it into solar fuels can be extremely beneficial in reducing the constantly rising CO(2) concentration in the atmosphere while simultaneously addressing energy crisis issues. Hence, many researchers have focused their work on the CO(2) photoreduction reaction f...

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Detalles Bibliográficos
Autores principales: Stelios, Gavrielides, Tan, Jeannie Z. Y., Maroto-Valer, M. Mercedes
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041433/
https://www.ncbi.nlm.nih.gov/pubmed/35495501
http://dx.doi.org/10.1039/d1ra05414g
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author Stelios, Gavrielides
Tan, Jeannie Z. Y.
Maroto-Valer, M. Mercedes
author_facet Stelios, Gavrielides
Tan, Jeannie Z. Y.
Maroto-Valer, M. Mercedes
author_sort Stelios, Gavrielides
collection PubMed
description Utilising captured CO(2) and converting it into solar fuels can be extremely beneficial in reducing the constantly rising CO(2) concentration in the atmosphere while simultaneously addressing energy crisis issues. Hence, many researchers have focused their work on the CO(2) photoreduction reaction for the last 4 decades. Herein, the titania hyper-branched nanorod (HBN) thin films, with a novel hierarchical dendritic morphology, revealed enhanced CO(2) photoreduction performance. The HBNs exhibited enhanced photogenerated charge production (66%), in comparison with P25 (39%), due to the unique hyper-branched morphology. Furthermore, the proposed HBN thin films exhibited a high degree of control over the product selectivity, by undergoing a facile phase-altering treatment. The selectivity was shifted from 91% towards CO, to 67% towards CH(4). Additionally, the HBN samples showed the potential to surpass the conversion rates of the benchmark P25 TiO(2) in both CO and CH(4) production. To further enhance the selectivity and overall performance of the HBNs, RuO(2) was incorporated into the synthesis, which enhanced the CH(4) selectivity from 67% to 74%; whereas the incorporation of CuO revealed a selectivity profile comparative to P25.
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spelling pubmed-90414332022-04-28 Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction Stelios, Gavrielides Tan, Jeannie Z. Y. Maroto-Valer, M. Mercedes RSC Adv Chemistry Utilising captured CO(2) and converting it into solar fuels can be extremely beneficial in reducing the constantly rising CO(2) concentration in the atmosphere while simultaneously addressing energy crisis issues. Hence, many researchers have focused their work on the CO(2) photoreduction reaction for the last 4 decades. Herein, the titania hyper-branched nanorod (HBN) thin films, with a novel hierarchical dendritic morphology, revealed enhanced CO(2) photoreduction performance. The HBNs exhibited enhanced photogenerated charge production (66%), in comparison with P25 (39%), due to the unique hyper-branched morphology. Furthermore, the proposed HBN thin films exhibited a high degree of control over the product selectivity, by undergoing a facile phase-altering treatment. The selectivity was shifted from 91% towards CO, to 67% towards CH(4). Additionally, the HBN samples showed the potential to surpass the conversion rates of the benchmark P25 TiO(2) in both CO and CH(4) production. To further enhance the selectivity and overall performance of the HBNs, RuO(2) was incorporated into the synthesis, which enhanced the CH(4) selectivity from 67% to 74%; whereas the incorporation of CuO revealed a selectivity profile comparative to P25. The Royal Society of Chemistry 2021-09-28 /pmc/articles/PMC9041433/ /pubmed/35495501 http://dx.doi.org/10.1039/d1ra05414g Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Stelios, Gavrielides
Tan, Jeannie Z. Y.
Maroto-Valer, M. Mercedes
Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title_full Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title_fullStr Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title_full_unstemmed Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title_short Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO(2) photoreduction
title_sort hierarchical hyper-branched titania nanorods with tuneable selectivity for co(2) photoreduction
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9041433/
https://www.ncbi.nlm.nih.gov/pubmed/35495501
http://dx.doi.org/10.1039/d1ra05414g
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