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Synthesis of MFI Zeolite Films on Optical Fibers for Detection of Chemical Vapors

机译:光纤上合成MFI分子筛膜以检测化学蒸气

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摘要

We report the development of a novel zeolite-incorporated optical fiber sensor and demonstrate its capabilityfor in situ detection of chemical vapors. The sensor comprises a polycrystalline silicalite thin film grown upon the cleaved end face of a standard single-mode optical fiber. The sensor device operates by measuring the optical reflectivity of the zeolite crystals, which changes reversibly in response to the amount of chemical vapor adsorbed in its crystalline microporous structure. The sensor has been successfully demonstrated for measuring the concentration of isopropanol vapor in mixtures with nitrogen gas.
机译:我们报告了新型沸石结合的光纤传感器的发展,并证明了其原位检测化学蒸汽的能力。该传感器包括在标准单模光纤的切割端面上生长的多晶硅质岩薄膜。该传感器装置通过测量沸石晶体的光反射率来操作,该光反射率响应于其晶体微孔结构中吸附的化学蒸气的量而可逆地变化。该传感器已成功证明可测量与氮气混合的异丙醇蒸气的浓度。

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