Encapsulating Pyrene in a Metal鈥揙rganic Zeolite for Optical Sensing of Molecular Oxygen
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- 作者：Jia-Wen Ye ; Hao-Long Zhou ; Si-Yang Liu ; Xiao-Ning Cheng ; Rui-Biao Lin ; Xiao-Lin Qi ; Jie-Peng Zhang ; Xiao-Ming Chen
- 刊名：Chemistry of Materials
- 出版年：2015
- 出版时间：December 22, 2015
- 年：2015
- 卷：27
- 期：24
- 页码：8255-8260
- 全文大小：463K
- ISSN：1520-5002
文摘
Pyrene is a good oxygen-sensitive probe with high fluorescence quantum yield, suitable sensitivity, and high photostability when dispersed in gas-permeable organic polymers, but it is a carcinogen and environmental pollutant and tends to aggregate and/or evaporate at high temperature/low pressure. In this work, we show that pyrene can be easily and firmly encapsulated in a metal鈥搊rganic zeolite SOD-[Zn(mim)2] (Hmim = 2-methylimidazole, MAF-4 or ZIF-8) via an in situ loading strategy, giving fluorescence O2-sensing materials not only with fast response, high photostability, and tunable sensitivity but also free of pyrene aggregation/leak and interference by other quenchers. Moreover, these host鈥揼uest inclusion crystals can be easily fabricated as thin film sensors and aerodynamic coatings.