材料科学
跟踪(心理语言学)
光纤
离子
分子印迹聚合物
纤维
光纤传感器
聚合物
光学
复合材料
选择性
化学
物理
催化作用
哲学
有机化学
生物化学
语言学
作者
Wenlin Feng,Chenyuan Yuan,Ting Li,Xiaozhan Yang
出处
期刊:Optik
[Elsevier]
日期:2023-02-01
卷期号:272: 170259-170259
标识
DOI:10.1016/j.ijleo.2022.170259
摘要
A fiber-optic surface plasmon resonance (SPR) sensor based on the trivalent chromium-ion imprinted polymer (Cr 3+ -IIP) was proposed and fabricated. A small core-diameter fiber (SCF) with a length of 1 cm is spliced between two multimode fibers (MMFs) to form the MMF-SCF-MMF sensing structure. A 67-nm thick Ag film was evaporated on the outside surface of the SCF, and then Cr 3+ -IIP and nonionic imprinted polymer materials were respectively coated on the surface of the Ag film and then the fiber-optic SPR sensor was obtained. The results show that with the increase of Cr 3+ concentration in the range of 0-1.1 µM, the SPR peak indicates redshift with 80.5 nm. The sensitivity and linearity of the sensor are 71.7 nm/µM and 0.994, respectively. The limit of detection of the sensor is about 0.041 μM (2.145 ppb). The fiber-optic SPR sensor is expected to be applied to the detection of trace Cr 3+ ions in water.
科研通智能强力驱动
Strongly Powered by AbleSci AI