Surface mapping of photocatalytic activity in heterogeneous TiO2 films
Journal article
Lee, R., Park, S., Sathasivam, S., Mills, A., Parkin, I.P., Palgrave, R.P. and Quesada-Cabrera, R. (2024). Surface mapping of photocatalytic activity in heterogeneous TiO2 films. Journal of Materials Chemistry A. 15. https://doi.org/10.1039/D4TA03692A
Authors | Lee, R., Park, S., Sathasivam, S., Mills, A., Parkin, I.P., Palgrave, R.P. and Quesada-Cabrera, R. |
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Abstract | Recent developments in advanced spectroscopy and imaging techniques are shedding light into key charge transfer processes and kinetics in photocatalysis. Complementary photocatalytic reactions with local markers and surface structural mapping are essential to establish property-function correlations in photocatalytic materials. The current work describes a simple approach to probe heterogeneous photocatalytic surfaces using digital colorimetry and the well-established smart ink test, based on the photo-induced reduction of resazurin dye. Surface crystallographic phase mapping is carried out using valence band photoemission spectra (depth resolution of ca. 5 nm). The method has prospective implementation to pixel-by-pixel analysis using high resolution cameras at micron scale. |
Year | 2024 |
Journal | Journal of Materials Chemistry A |
Journal citation | 15 |
Publisher | Royal Society of Chemistry (RSC) |
ISSN | 2050-7488 |
2050-7496 | |
Digital Object Identifier (DOI) | https://doi.org/10.1039/D4TA03692A |
Web address (URL) | https://pubs.rsc.org/en/Content/ArticleLanding/2024/TA/D4TA03692A |
Publication dates | |
Online | 18 Jul 2024 |
Publication process dates | |
Accepted | 15 Jul 2024 |
Deposited | 30 Jul 2024 |
Publisher's version | License File Access Level Open |
Accepted author manuscript | License File Access Level Controlled |
https://openresearch.lsbu.ac.uk/item/97w0y
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Publisher's version
Surface mapping of photocatalytic activity in heterogeneous TiO2 films.pdf | ||
License: CC BY 4.0 | ||
File access level: Open |
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