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Combining photocatalysis and optical fibre technology towards improved microreactor design for hydrogen generation with metallic nanoparticles

Combining photocatalysis and optical fibre technology towards improved microreactor design for hydrogen generation with metallic nanoparticles
Combining photocatalysis and optical fibre technology towards improved microreactor design for hydrogen generation with metallic nanoparticles
The use of solar energy to activate chemical pathways in a sustainable manner drivesthe development in photocatalysis. While catalyst optimisation is a major theme in this pursuit, the development of novel photocatalytic reactors to enhance productivity is also imperative. In this work we combine, for the first time, microstructured optical fibre technology with photocatalysis, creating a photocatalytic microreactor coated with TiO2, decorated with palladium nanoparticles. In doing so, we create a system capable of effectively combining photons, liquids and gases within a monolithic, highly confined, transparent silica geometry. We utilise a range of characterisation techniques to selectively focus on the photocatalyst, that resides exclusively within the internal capillaries of this system. In doing so we validate our design approach, and demonstrate the ability to simultaneously control both nanoparticle size and metal content. Further, we justify our unique design, showing its activity in photocatalytic hydrogen generation from water. In doing so highlighting the importance in developing light propagation properties from optical fibres, and the significant potential of this technology in the expansive photocatalysis landscape.
Photonics, Catalysis, Optical-fibre, solar energy, hydrogen production, nanoparticles, tomography
2330-4022
714-722
Potter, Matthew E.
ca2208fb-8bc1-41de-9b02-c41eeaba5d58
Stewart, Daniel J.
94b649d4-bcfc-4bcc-86e0-4b0ee53d2a00
Oakley, Alice Elizabeth
78ad819d-33bb-4c77-af90-9dcc96ed52e0
Boardman, Richard P.
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Bradley, Tom
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Sazio, Pier J.A.
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Raja, Robert
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Potter, Matthew E.
ca2208fb-8bc1-41de-9b02-c41eeaba5d58
Stewart, Daniel J.
94b649d4-bcfc-4bcc-86e0-4b0ee53d2a00
Oakley, Alice Elizabeth
78ad819d-33bb-4c77-af90-9dcc96ed52e0
Boardman, Richard P.
5818d677-5732-4e8a-a342-7164dbb10df1
Bradley, Tom
d4cce4f3-bb69-4e14-baee-cd6a88e38101
Sazio, Pier J.A.
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Raja, Robert
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Potter, Matthew E., Stewart, Daniel J., Oakley, Alice Elizabeth, Boardman, Richard P., Bradley, Tom, Sazio, Pier J.A. and Raja, Robert (2020) Combining photocatalysis and optical fibre technology towards improved microreactor design for hydrogen generation with metallic nanoparticles. ACS Photonics, 7 (3), 714-722. (doi:10.1021/acsphotonics.9b01577).

Record type: Article

Abstract

The use of solar energy to activate chemical pathways in a sustainable manner drivesthe development in photocatalysis. While catalyst optimisation is a major theme in this pursuit, the development of novel photocatalytic reactors to enhance productivity is also imperative. In this work we combine, for the first time, microstructured optical fibre technology with photocatalysis, creating a photocatalytic microreactor coated with TiO2, decorated with palladium nanoparticles. In doing so, we create a system capable of effectively combining photons, liquids and gases within a monolithic, highly confined, transparent silica geometry. We utilise a range of characterisation techniques to selectively focus on the photocatalyst, that resides exclusively within the internal capillaries of this system. In doing so we validate our design approach, and demonstrate the ability to simultaneously control both nanoparticle size and metal content. Further, we justify our unique design, showing its activity in photocatalytic hydrogen generation from water. In doing so highlighting the importance in developing light propagation properties from optical fibres, and the significant potential of this technology in the expansive photocatalysis landscape.

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More information

Accepted/In Press date: 21 February 2020
e-pub ahead of print date: 24 February 2020
Published date: 2020
Keywords: Photonics, Catalysis, Optical-fibre, solar energy, hydrogen production, nanoparticles, tomography

Identifiers

Local EPrints ID: 438447
URI: http://eprints.soton.ac.uk/id/eprint/438447
ISSN: 2330-4022
PURE UUID: 309b2dbc-ba8b-45fa-b7a4-baf2c6aec133
ORCID for Daniel J. Stewart: ORCID iD orcid.org/0000-0003-3409-6517
ORCID for Tom Bradley: ORCID iD orcid.org/0000-0001-6568-5811
ORCID for Pier J.A. Sazio: ORCID iD orcid.org/0000-0002-6506-9266
ORCID for Robert Raja: ORCID iD orcid.org/0000-0002-4161-7053

Catalogue record

Date deposited: 10 Mar 2020 17:31
Last modified: 19 May 2020 00:43

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Contributors

Author: Matthew E. Potter
Author: Daniel J. Stewart ORCID iD
Author: Alice Elizabeth Oakley
Author: Tom Bradley ORCID iD
Author: Pier J.A. Sazio ORCID iD
Author: Robert Raja ORCID iD

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