使用光波导NH传感器研究气相质子化四苯基卟啉的光化学性质。
Optochemical properties of gas-phase protonated tetraphenylporphyrin investigated using an optical waveguide NH sensor.
作者信息
Tuerdi Gulimire, Nizamidin Patima, Kari Nuerguli, Yimit Abliz, Wang Fu
机构信息
College of Chemistry and Chemical Engineering, Xinjiang University Urumqi 830046 China
Laboratory of Environmental Sciences and Technology, Xinjiang Technical Institute of Physics & Chemistry, Key Laboratory of Functional Materials and Devices for Special Environments, Chinese Academy of Sciences Urumqi 830011 China.
出版信息
RSC Adv. 2018 Feb 1;8(10):5614-5621. doi: 10.1039/c7ra11643h. eCollection 2018 Jan 29.
5,10,15,20-Tetraphenylporphyrin (TPP) was synthesized, and a glass optical waveguide (OWG, which restricts and maintains the light energy in a specific, narrow space and propagates along the space axially) was coated with a gas-phase protonated TPP thin film to develop a sensor for NH gas detection. The results show that the TPP thin film agglomerated into H-based J-type aggregates after HS gas exposure. The molecules in the protonated TPP film OWG sensor acted as NH receptors because the gas-phase protonated TPP film morphologically changed from J-type aggregates into free-base monomers when it was deprotonated by NH exposure. In this case, HS gas could be used to increase the relative amount of J-type aggregates in the TPP film and restore the sensor response. The reversible surface morphology of the TPP film was analyzed by H NMR spectroscopy, atomic force microscopy, and UV-vis spectroscopy.
合成了5,10,15,20-四苯基卟啉（TPP），并在玻璃光波导（OWG，其将光能限制并维持在特定的狭窄空间中，并沿该空间轴向传播）上涂覆气相质子化TPP薄膜，以开发用于检测NH气体的传感器。结果表明，暴露于HS气体后，TPP薄膜聚集成基于H的J型聚集体。质子化TPP薄膜光波导传感器中的分子充当NH受体，因为当气相质子化TPP薄膜通过暴露于NH而脱质子化时，其形态从J型聚集体变为游离碱单体。在这种情况下，HS气体可用于增加TPP薄膜中J型聚集体的相对量并恢复传感器响应。通过1H NMR光谱、原子力显微镜和紫外可见光谱分析了TPP薄膜的可逆表面形态。
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