Abstract Herein, a surface-sensitive sensor was reported as an optical waveguide (OWG) gas sensor. The sensor exhibited some advantages, including simple preparation and high sensitivity. Further, it could be operated at room temperature. TiO2 and ZnFe2O4 were employed as sensitive materials to prepare a sensor with a high response to styrene gas. The TiO2–ZnFe2O4 sol was prepared by doping ZnFe2O4 via the preparation of a TiO2 thin film, and the TiO2–ZnFe2O4 sol was fixed at the surface of the tin-doped glass waveguide by the dip-pulling method. Furthermore, the optimum conditions of the sensor were studied, and the sensors that were prepared under optimum conditions were employed to detect different concentrations of styrene gases. The results demonstrated that the sensor exhibited a high response to the determination of styrene and was reusable. Moreover, it could detect styrene across the concentration range from 1,000 ppm to 100 ppb at ambient temperature.

中文翻译：

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使用掺杂有铁酸锌的钛 (IV) 氧化膜光波导改进苯乙烯的测定

摘要 在此，一种表面敏感传感器被报道为光波导 (OWG) 气体传感器。该传感器表现出一些优点，包括简单的制备和高灵敏度。此外，它可以在室温下操作。TiO2 和 ZnFe2O4 被用作敏感材料来制备对苯乙烯气体具有高响应的传感器。TiO2-ZnFe2O4 溶胶是通过制备 TiO2 薄膜掺杂 ZnFe2O4 制备的，TiO2-ZnFe2O4 溶胶通过浸拉法固定在掺锡玻璃波导的表面。此外，研究了传感器的最佳条件，并采用在最佳条件下制备的传感器来检测不同浓度的苯乙烯气体。结果表明，该传感器对苯乙烯的测定表现出很高的响应，并且可以重复使用。