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
AuthorsLee, R., Park, S., Sathasivam, S., Mills, A., Parkin, I.P., Palgrave, R.P. and Quesada-Cabrera, R.
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.

Year2024
JournalJournal of Materials Chemistry A
Journal citation15
PublisherRoyal Society of Chemistry (RSC)
ISSN2050-7488
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
Online18 Jul 2024
Publication process dates
Accepted15 Jul 2024
Deposited30 Jul 2024
Publisher's version
License
File Access Level
Open
Accepted author manuscript
License
File Access Level
Controlled
Permalink -

https://openresearch.lsbu.ac.uk/item/97w0y

Download files

Publisher's version
Surface mapping of photocatalytic activity in heterogeneous TiO2 films.pdf
License: CC BY 4.0
File access level: Open

  • 14
    total views
  • 3
    total downloads
  • 1
    views this month
  • 0
    downloads this month

Export as

Related outputs

An Aerosol-Assisted Chemical Vapor Deposition Route to Tin-Doped Gallium Oxide Thin Films with Optoelectronic Properties
Chen, R., Sathasivam, S., Borowiec, J. and Carmalt, C. (2024). An Aerosol-Assisted Chemical Vapor Deposition Route to Tin-Doped Gallium Oxide Thin Films with Optoelectronic Properties. ACS Applied Electronic Materials. https://doi.org/10.1021/acsaelm.4c00973
Visible-Light-Active Iodide-Doped BiOBr Coatings for Sustainable Infrastructure
Wang, M., Quesada-Cabrera, R., Sathasivam, S., Blunt, M., Borowiec, J. and Carmalt, C. (2023). Visible-Light-Active Iodide-Doped BiOBr Coatings for Sustainable Infrastructure. ACS Applied Materials & Interfaces. https://doi.org/10.1021/acsami.3c11525
Superhydrophobic Hexadecyltrimethoxysilane-Modified Fumed Silica Nanostructure/Poly(butyl methacrylate) Composite Thin Films via Aerosol-Assisted Deposition: Implications for Self-Cleaning Surfaces
Huo, J., De Leon Reyes, C., Kalmoni, J.J., Park, S., Hwang, G., Sathasivam, S. and Carmalt, C. (2023). Superhydrophobic Hexadecyltrimethoxysilane-Modified Fumed Silica Nanostructure/Poly(butyl methacrylate) Composite Thin Films via Aerosol-Assisted Deposition: Implications for Self-Cleaning Surfaces. ACS Applied Nano Materials. 6 (18), p. 16383–16391. https://doi.org/10.1021/acsanm.3c02575
Comparison of Fabrication Methods for Fiber‐Optic Ultrasound Transmitters Using Candle‐Soot Nanoparticles
Bodian, S., Aytac‐Kipergil, E., Zhang, S., Lewis‐Thompson, I., Sathasivam, S., Mathews, S., Alles, E., Zhang, E., Beard, P., Gordon, Ross J., Collier, Paul, Parkin, I., Desjardins, A., Colchester, R. and Noimark, S. (2023). Comparison of Fabrication Methods for Fiber‐Optic Ultrasound Transmitters Using Candle‐Soot Nanoparticles. Advanced Materials Interfaces. 10 (9), p. 2201792. https://doi.org/10.1002/admi.202201792
Transparent and Conducting Boron Doped ZnO Thin Films Grown By Aerosol Assisted Chemical Vapor Deposition
Zhao, S., Sathasivam, S., Wang, M. and Carmalt, C.J. (2022). Transparent and Conducting Boron Doped ZnO Thin Films Grown By Aerosol Assisted Chemical Vapor Deposition. RSC Advances. https://doi.org/10.1039/D2RA05895B
Transparent and conducting boron doped ZnO thin films grown by aerosol assisted chemical vapor deposition.
Zhao, D., Sathasivam, S., Wang, M. and Carmalt, C. (2022). Transparent and conducting boron doped ZnO thin films grown by aerosol assisted chemical vapor deposition. RSC Advances. 12 (51), pp. 33049-33055. https://doi.org/10.1039/d2ra05895b
Enhanced Photoacoustic Visualisation of Clinical Needles by Combining Interstitial and Extracorporeal Illumination of Elastomeric Nanocomposite Coatings
Shi, M., Bodian, S., West, S.J., Sathasivam, S., Gordon, R.J., Collier, P., Vercauteren, T., Desjardins, A., Noimark, S. and Xia, W. (2022). Enhanced Photoacoustic Visualisation of Clinical Needles by Combining Interstitial and Extracorporeal Illumination of Elastomeric Nanocomposite Coatings. Sensors. 22 (17), p. e6417. https://doi.org/10.3390/s22176417
Production of an EP/PDMS/SA/AlZnO Coated Superhydrophobic Surface through an Aerosol-Assisted Chemical Vapor Deposition Process
Park, Seonghyeok, Huo, Jiatong, Shin, Juhun, Heo, Ki Joon, Kalmoni, Julie Jalila, Sathasivam, S., Hwang, G. and Carmalt, C. (2022). Production of an EP/PDMS/SA/AlZnO Coated Superhydrophobic Surface through an Aerosol-Assisted Chemical Vapor Deposition Process. Langmuir. https://doi.org/10.1021/acs.langmuir.2c01060
Resonant Ta Doping for Enhanced Mobility in Transparent Conducting SnO2
Williamson, B.A.D., Featherstone, T. J., Sathasivam, S., Swallow, J.E.N., Jones, A.H., Smiles, M.J., Regoutz, A., Xia, X., Blackman, C., Thaku, P. K., Carmalt, C.J., Parkin, I.P, Veal, T.D. and Scanlon, D.O (2020). Resonant Ta Doping for Enhanced Mobility in Transparent Conducting SnO2. Chemistry of Materials. 32, p. 1964−1973. https://doi.org/10.1021/acs.chemmater.9b04845
Combined Effect of Temperature Induced Strain and Oxygen Vacancy on Metal‐Insulator Transition of VO2 Colloidal Particles
Kargal, G L, Sathasivam, S., Li, J., Portnoi, M., Parkin, I. P. and Papakonstantinou, I (2020). Combined Effect of Temperature Induced Strain and Oxygen Vacancy on Metal‐Insulator Transition of VO2 Colloidal Particles. Advanced Functional Materials. 30 (49), p. 2005311. https://doi.org/10.1002/adfm.202005311