Wang Zhengkun, Zhong Nianbing, Chen Ming, Chang Haixing, Zhong Dengjie, Wu Yongwu, Liu Huimin, Xin Xin, Zhao Mingfu, Tang Bing, Song Tao, Shi Shenghui
Appl Opt. 2019 Mar 10;58(8):2091-2099. doi: 10.1364/AO.58.002091.
A photochemical fiber-optic sensor was developed by integrating a plastic optical fiber (POF), polymer membrane, gold mirror, and TiO-based composite, and was shown to sensitively and selectively detect phenol in aqueous solution. The sensing element consisted of a thinned POF and visible-light-driven SiO/N-doped TiO coating. The gold mirror was used to develop a reflective POF probe. The polymer membrane with high phenol permselectivity was employed to form a micro-channel between the membrane and probe. Our findings highlight the sensor's capability of phenol detection in aqueous solutions with high sensitivity of 0.294×10 (mg·L), pH immunity ranging from 2.0 to 14.0, and high selectivity with a limit of detection of 30 μg·L.
通过集成塑料光纤（POF）、聚合物膜、金镜和TiO基复合材料开发了一种光化学光纤传感器，该传感器被证明能够灵敏且选择性地检测水溶液中的苯酚。传感元件由一根变细的POF和可见光驱动的SiO/N掺杂TiO涂层组成。金镜用于开发反射型POF探头。具有高苯酚渗透选择性的聚合物膜用于在膜和探头之间形成微通道。我们的研究结果突出了该传感器在水溶液中检测苯酚的能力，其灵敏度高达0.294×10（mg·L），pH耐受性范围为2.0至14.0，检测限为30μg·L，具有高选择性。
