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| Pressure-induced phase transitions of exposed curved surface nano-TiO2 with high photocatalytic activity | |
| Huang, YW; Chen, FJ; Li, X; Yuan, Y; Dong, HN; Samanta, S; Yu, ZH; Rahman, S; Zhang, J; Yang, K; Yan, S; Wang, L; Wang, L (reprint author), Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China.; Huang, YW (reprint author), Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China. | |
| 2016 | |
| Source Publication | JOURNAL OF APPLIED PHYSICS
 |
| ISSN | 0021-8979 |
| Volume | 119Issue:21Pages:- |
| Subtype | 期刊论文 |
| Abstract | We report a unique phase transition in compressed exposed curved surface nano-TiO2 with high photocatalytic activity using in situ synchrotron X-ray diffraction and Raman Spectroscopy. High-pressure studies indicate that the anatase phase starts to transform into baddeleyite phase upon compression at 19.4 GPa, and completely transforms into the baddeleyite phase above 24.6 GPa. Upon decompression, the baddeleyite phase was maintained until the pressure was released to 6.4 GPa and then transformed into the alpha-PbO2 phase at 2.7 GPa. Together with the results of high-resolution transmission electron microscopy and the pressure-volume relationship, this phase transition's characteristics during the compression-decompression cycle demonstrate that the truncated biconic morphology possessed excellent stability. This study may provide an insight to the mechanisms of stability for high photocatalytic activity of nano-TiO2. Published by AIP Publishing. |
| DOI | 10.1063/1.4953218 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000378923100057 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.sinap.ac.cn/handle/331007/26606 |
| Collection | 中科院上海应用物理研究所2011-2018年 |
| Corresponding Author | Huang, YW; Wang, L (reprint author), Ctr High Pressure Sci & Technol Adv Res, Shanghai 201203, Peoples R China.; Huang, YW (reprint author), Hangzhou Dianzi Univ, Coll Mat & Environm Engn, Hangzhou 310018, Peoples R China. |
| Recommended Citation GB/T 7714 | Huang, YW,Chen, FJ,Li, X,et al. Pressure-induced phase transitions of exposed curved surface nano-TiO2 with high photocatalytic activity[J]. JOURNAL OF APPLIED PHYSICS,2016,119(21):-. |
| APA | Huang, YW.,Chen, FJ.,Li, X.,Yuan, Y.,Dong, HN.,...&Huang, YW .(2016).Pressure-induced phase transitions of exposed curved surface nano-TiO2 with high photocatalytic activity.JOURNAL OF APPLIED PHYSICS,119(21),-. |
| MLA | Huang, YW,et al."Pressure-induced phase transitions of exposed curved surface nano-TiO2 with high photocatalytic activity".JOURNAL OF APPLIED PHYSICS 119.21(2016):-. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Pressure-induced pha（2121KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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