Excited-state geometry relaxation of pyrene-modified cellulose nanocrystals under UV-light excitation for detecting Fe 3
Capturing and detecting Fe 3+ ions in aqueous solution is of great significance in biological systems as well as the water treatment industry. Herein, pyrene-modified cellulose nanocrystal (CNC-1-Pyr) acting as a fluorescent probe was prepared by a one-step esterification reaction, which shows geome...
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| Veröffentlicht in: | Nanotechnology reviews (Berlin) 2022-06, Vol.11 (1), p.2526-2534 |
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| container_title | Nanotechnology reviews (Berlin) |
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| creator | Tan, Ling Fan, Qiandan Huang, Fei Tian, Xin Wei, Wei Bian, Tongxin Guo, Yifan Xu, Xiaoling Zhou, Zuowan |
| description | Capturing and detecting Fe
3+
ions in aqueous solution is of great significance in biological systems as well as the water treatment industry. Herein, pyrene-modified cellulose nanocrystal (CNC-1-Pyr) acting as a fluorescent probe was prepared by a one-step esterification reaction, which shows geometry relaxation under UV-light excitation. Experiments and density functional theory-based simulations revealed that the structural geometry relaxation is controlled by the electron excitation and fluorescence emission. The S1 state of CNC-1-Pyr provides a conformation match for coordination with Fe
3+
under the excitation of UV light, facilitating the detecting and capturing of Fe
3+
efficiently. |
| doi_str_mv | 10.1515/ntrev-2022-0141 |
| format | Article |
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3+
ions in aqueous solution is of great significance in biological systems as well as the water treatment industry. Herein, pyrene-modified cellulose nanocrystal (CNC-1-Pyr) acting as a fluorescent probe was prepared by a one-step esterification reaction, which shows geometry relaxation under UV-light excitation. Experiments and density functional theory-based simulations revealed that the structural geometry relaxation is controlled by the electron excitation and fluorescence emission. The S1 state of CNC-1-Pyr provides a conformation match for coordination with Fe
3+
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3+
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| source | Directory of Open Access Journals; Walter De Gruyter: Open Access Journals; EZB Electronic Journals Library |
| title | Excited-state geometry relaxation of pyrene-modified cellulose nanocrystals under UV-light excitation for detecting Fe 3 |
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