Zeolite-Coated Optical Fiber Sensors for In-Situ Detection of Organics in Gas and Liquid Phases

摘要

Polycrystalline MFI zeolite thin films have been grown on the surface of optical fibers by in-situ crystallization method. The zeolite-coated optical fibers were investigated for detection of trace organic compounds in gas and liquid phases. The reflectivity of the zeolite-coated fibers responded to the change in organic concentration monotonically and reversibly. The effect of zeolite material chemistry of the zeolite crystals on the sensor behavior was also studied.