|
| Controlling Distribution of Gold Nanoparticles in Au@ZIF-8 Core-Shell Structures for Sensing Fluorescent Molecules with Photoluminescence |
| Author Name | Affiliation | E-mail | | ZHANG Wei | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | | | ZHANG Yu-Yi | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | | | BIAN Ya-Jie | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | | | CHEN Meng-Di | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | mdchen@lps.ecnu.edu.cn | | ZHANG Xiao-Lei | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | xlzhang@admin.ecnu.edu.cn | | JIN Qing-Yuan | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | | | HU Bing-Wen | State Key Laboratory of Precision Spectroscopy, Shanghai Key Laboratory of Magnetic Resonance, School of Physics and Electronic Science, East China Normal University, Shanghai 200062, China | |
|
| Abstract: Controlling the distribution of metal nanoparticles in metal@MOF core-shell structures is not easy to realize. We applied the coordination modulation method which has been studied in the synthesis of MOF colloids to synthesize Au@ZIF-8 core-shell nanostructures. Different Au@ZIF-8 core-shell nanostructures have been achieved by employing an excess amount of 2-methylimidazole and various amount of 1-methylimidazole. With our method, the distribution of Au nanoparticles (Au NPs) could be flexibly tuned in the ZIF-8 nanocrystals. Moreover, we investigated the photoluminescent spectra and lifetime of two fluorescent molecules with different sizes, combined with Au@ZIF-8 separately. The aperture size of ZIF-8 determines whether to let the molecules pass through the porous shell to approach Au NPs, and the molecular optical properties are sensitive to the competition of luminescent enhancement and fluorescent quenching of Au NPs. |
| Keywords: core-shell structure ZIF-8 Au nanoparticles fluorescent photoluminescence |
| Hits: 2859 |
| Download times: 529 |
| ZHANG Wei,ZHANG Yu-Yi,BIAN Ya-Jie,CHEN Meng-Di,ZHANG Xiao-Lei,JIN Qing-Yuan,HU Bing-Wen.Controlling Distribution of Gold Nanoparticles in Au@ZIF-8 Core-Shell Structures for Sensing Fluorescent Molecules with Photoluminescence[J].Chinese Journal of Inorganic Chemistry,2021,37(11):2059-2067. |
| View Full Text View/Add Comment Download reader |
|
|
|
|
|
|
|
|
