Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/102240
Citations | ||
Scopus | Web of Science® | Altmetric |
---|---|---|
?
|
?
|
Type: | Journal article |
Title: | Effect of gold nanoclusters on the production of Ti³⁺ defect sites in titanium dioxide nanoparticles under ultraviolet and soft X‑ray radiation |
Author: | Bennett, T. Adnan, R. Alvino, J. Kler, R. Golovko, V. Metha, G. Andersson, G. |
Citation: | The Journal of Physical Chemistry C: Energy Conversion and Storage, Optical and Electronic Devices, Interfaces, Nanomaterials, and Hard Matter, 2015; 119(20):11171-11177 |
Publisher: | American Chemical Society |
Issue Date: | 2015 |
ISSN: | 1932-7447 1932-7455 |
Statement of Responsibility: | T. Bennett, R.H. Adnan, J.F. Alvino, R. Kler, V.B. Golovko, G.F. Metha and G.G. Andersson |
Abstract: | The production rate and saturation point of Ti³⁺ defect sites on titanium dioxide P-25 and anatase nanoparticles doped with Au101(PPh₃)₂₁Cl₅ (Au₁₀₁) metal nanoclusters were investigated under synchrotron X-ray irradiation alone, as well as combined X-ray and UV radiation. The saturation point in the growth of the normalized relative populations of Ti³⁺ centers on anatase and P-25 titania nanoparticles with and without Au₁₀₁ nanoclusters present at the surface was found to vary with the type of support. It was influenced by the presence of gold nanoclusters: a higher concentration of Ti³⁺ centers was generated where gold nanoclusters were deposited onto anatase nanoparticles and irradiated by both X-ray and UV photons, compared with X-ray irradiation alone. Conversely, all samples based on the TiO₂ P-25 support displayed reduced levels of T³⁺ center populations at the saturation points under combined X-ray and UV combined radiation, compared to the samples exposed exclusively to X-ray radiation. The initial rate of production of Ti³⁺ defect sites was found to decrease for combined UV and X-ray irradiation in the case when Au₁₀₁ was deposited onto anatase. However, the opposite trend in the initial production rate of Ti³⁺ centers was observed in the case of Au₁₀₁ deposited onto the TiO₂ P-25 |
Rights: | © 2015 American Chemical Society |
DOI: | 10.1021/jp5119162 |
Published version: | http://dx.doi.org/10.1021/jp5119162 |
Appears in Collections: | Aurora harvest 7 Physics publications |
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.