zn -四苯基卟啉Langmuir-Schaefer薄膜的传感能力

IF 0.3 Q4 CRYSTALLOGRAPHY

Liquid Crystals and their Application Pub Date : 2023-06-29 DOI:10.18083/lcappl.2023.2.29

O. V. Maltсeva, K. Nikitin, A. Kazak, N. Mamardashvili, N. Usol'tseva

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引用次数: 0

摘要

建立了浮层模型，计算了水面上分子填料的几何特性。结果表明，单分子膜正面密实填料的分子面积为1.69 nm 2，侧面密实填料的分子面积为0.90 nm 2。对浮层压缩等温线的分析表明，ZnTPP分子是面朝界面平面排列的。电子吸收光谱分析表明，ls -薄膜中含有j型聚集体。原子力显微镜对ls膜表面形貌的研究表明，当转移次数从1次增加到5次时，ls膜的平均粗糙度增加了1.4倍。研究了液相和气态介质中具有15个转移的ls膜对羟基吡啶和吡啶的传感性能。结果表明，ls膜对吡啶蒸气敏感。所得结果可用于制造环境污染监测的选择性传感器

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Sensing Ability of Zn-Tetraphenylporphyrin Langmuir-Schaefer Films

floating layers were modeled and the geometric characteristics of molecular packings on water surface were calculated. It was shown that the area per molecule in the dense face-on packing of a monolayer is 1.69 nm 2 , and in the edge-on packing – 0.90 nm 2 . Analysis of the floating layer compression isotherm revealed that ZnTPP molecules are arranged face-on to the interface plane. Electron absorption spectroscopy showed that LS-films contain aggregates of J-type. The surface morphology of LS-films studied by AFM revealed that the average roughness of LS-films increases by 1.4 times with an increase in the number of transfers from one to five. The sensing properties of the LS-films (with 15 transfers) with respect to hydroxypyridine and pyridine in aqueous and gaseous media, correspondingly, have been studied. It was established that the LS-film is sensitive to pyridine vapors. The results obtained can be used to create selective sensors for environmental pollution monitoring

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来源期刊

Liquid Crystals and their Application CRYSTALLOGRAPHY-

CiteScore

1.30

自引率

40.00%

发文量

期刊介绍： The Journal presents the following main directions of creation/construction, study and application of self-assembled materials: SYNTHESIS, STRUCTURE, PROPERTIES, MEDICINE, BIOLOGY, NANOTECHNOLOGY, SENSORS, PRACTICAL APPLICATION and INFORMATION. The journal is addressed to researchers, lecturers, university students, engineers. The publisher of the journal is the Nanomaterials Research Institute of "Ivanovo State University".