A simple functionalized silica microsphere for fast PETN vapor detection based on fluorescence color changes via a catalyzed oxidation process
文献信息
发布日期
2018-11-27
DOI
10.1039/C8AN02130A
影响因子
4.616
作者
Dehai Mu, Pengran Guo
查看原文
摘要
In this work, we report a new fluorescent material for pentaerythritol tetranitrate (PETN) vapor detection. A series of fluorene substituted vinyl-SiO microspheres with different ratios has been designed and easily synthesized. Sensing films on quartz plates were obtained by a solid phase transfer method. With a specific diameter of SiO and a specific density of surrounding fluorene, the microspheres performed a rapid fluorescence color change via oxidation with highly selective PETN catalysis. The emission peak at 355 nm was rapidly quenched while an enhancement at 525 nm appeared under exposure to PETN saturated vapor. Herein, we present this fluorescent silica nanoparticle as an excellent sensing material towards vapor phase PETN, making contributions to many fields such as public security and military use.
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Analyst
CiteScore:
7.8
自引率:
5.6%
年发文量:
653
Analyst publishes analytical and bioanalytical research that reports premier fundamental discoveries and inventions, and the applications of those discoveries, unconfined by traditional discipline barriers.
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