| Item type |
文献 / Documents(1) |
| 公開日 |
2025-04-28 |
| アクセス権 |
|
|
アクセス権 |
embargoed access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_f1cf |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
|
|
関連識別子 |
https://doi.org/10.1016/j.apsusc.2025.163328 |
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|
関連名称 |
10.1016/j.apsusc.2025.163328 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
|
|
タイトル |
Enhanced photocatalytic activity of TiO2/Au/TiO2/Au stacked nanostructures synthesized via sputtering and subsequent annealing |
| 著者 |
川上, 烈生
Miyaji, Yuki
柳谷, 伸一郎
白井, 昭博
コインカー, パンカジ
古部, 昭広
Nakano, Yoshitaka
Niibe, Masahito
|
| 抄録 |
|
|
内容記述 |
We synthesized TiO2/Au/TiO2/Au (IMIM) stacked nanostructure composed of TiO2 thin films (TFs) and Au nanoparticles (NPs). The TFs of TiO2 were deposited by sputtering Ti targets in Ar/O2 gas, followed by annealing to induce the anatase phase. The Au NPs were deposited by sputtering an Au target in Ar gas and then annealed to form the NPs. The nanostructures made of TiO2/Au/TiO2 (MIM) and TiO2/Au (IM) were synthesized for the purpose of comparison. The photocatalytic activity was evaluated by measuring organic decomposition and bacterial inactivation under ultraviolet and visible light irradiation, with the visible light wavelength matching the localized surface plasmon resonance (LSPR) of Au NPs. The photocatalytic performance of IMIM was more enhanced than TiO2 TF as the visible light intensity increased. The IMIM also outperformed the MIM and IM nanostructures. The improved photocatalytic activity would be attributed to the hot electron transfer from Au NPs to TiO2, originating from the visible-light-driven LSPR at the TiO2/Au interface at the top of IMIM. Additionally, the increased visible light absorption attributed to more oxygen vacancies in the top TiO2 layer due to Au NPs and a rougher surface due to the top TiO2 layer would enhance the photocatalytic activity. |
| キーワード |
|
|
主題 |
TiO2 thin film |
| キーワード |
|
|
主題 |
Au nanoparticles |
| キーワード |
|
|
主題 |
IMIM nanostructure |
| キーワード |
|
|
主題 |
Sputtering/subsequent annealing |
| キーワード |
|
|
主題 |
Local surface plasmon resonance |
| キーワード |
|
|
主題 |
Photocatalytic activity |
| 書誌情報 |
en : Applied Surface Science
巻 702,
p. 163328,
発行日 2025-04-22
|
| 収録物ID |
|
|
収録物識別子タイプ |
EISSN |
|
収録物識別子 |
18735584 |
| 収録物ID |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
01694332 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1152169X |
| 出版者 |
|
|
出版者 |
Elsevier |
| 権利情報 |
|
|
権利情報 |
© 2025. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/ |
| EID |
|
|
識別子 |
433521 |
| 言語 |
|
|
言語 |
eng |
apsusc_702_163328.pdf (1.7 MB)
