Volatile Organic Compounds Sensing Using Optical Fibre Long Period Grating with Mesoporous Nano-Scale Coating.
Volatile Organic Compounds Sensing Using Optical Fibre Long Period Grating with Mesoporous Nano-Scale Coating.
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DOI：
10.3390/s17020205
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发表时间：
2017-02-08
期刊：
影响因子：
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通讯作者：
Tatam RP
中科院分区：
文献类型：
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作者：
Hromadka J;Korposh S;Partridge M;James SW;Davis F;Crump D;Tatam RP
研究了以杯芳烃为功能化合物的介孔膜修饰的长周期光栅(LPG)对挥发性有机化合物(VOCs)及其混合物的检测。介孔膜由无机部分二氧化硅纳米颗粒(NPs)和聚烯丙基胺盐酸盐聚阳离子多环芳烃的有机部分组成，最后注入功能化合物对磺酸杯[4]芳烃(CA[4])或对磺酸杯[8]芳烃(CA[8])。液化石油气传感器设计为在相位匹配转折点工作，以提供最高的灵敏度。该传感机制是基于测量VOCs与杯芳烃形成的络合物引起的折射率(RI)变化。液化石油气用5个周期的(SiO_2纳米颗粒/多环芳烃)涂层改性，并注入CA[4]或CA[8]，暴露于氯仿、苯、甲苯和丙酮蒸气中。采用英国标准《材料挥发性有机物排放测试》(BS EN ISO 16000-9：2006)来测试液化石油气传感器的性能。
A long period grating (LPG) modified with a mesoporous film infused with a calixarene as a functional compound was employed for the detection of individual volatile organic compounds (VOCs) and their mixtures. The mesoporous film consisted of an inorganic part, SiO2 nanoparticles (NPs), along with an organic moiety of poly(allylamine hydrochloride) polycation PAH, which was finally infused with the functional compound, p-sulphanato calix[4]arene (CA[4]) or p-sulphanato calix[8]arene (CA[8]). The LPG sensor was designed to operate at the phase matching turning point to provide the highest sensitivity. The sensing mechanism is based on the measurement of the refractive index (RI) change induced by a complex of the VOCs with calixarene. The LPG, modified with a coating of 5 cycles of (SiO2 NPs/PAH) and infused with CA[4] or CA[8], was exposed to chloroform, benzene, toluene and acetone vapours. The British Standards test of the VOCs emissions from material (BS EN ISO 16000-9:2006) was used to test the LPG sensor performance.