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Sandwich type hybrid porphyrin phthalocyanine double layer metal complex nanotube and its preparation method and application

A technology of porphyrin phthalocyanine and double metal layer is applied in the field of sandwich type hybrid porphyrin phthalocyanine double layer metal complex nanotube and its preparation, which can solve the problems of poor stability and high working temperature, and achieve good gas detection. Practical value, low response concentration, simple and effective preparation method

Inactive Publication Date: 2018-07-31
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although metal-oxide-semiconductor gas sensors are widely used in the fields of household, industry, and environmental monitoring due to their advantages of low cost, simple preparation method, and high sensitivity, they have high operating temperature (generally 250-450°C) and high stability. Poor and other shortcomings

Method used

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  • Sandwich type hybrid porphyrin phthalocyanine double layer metal complex nanotube and its preparation method and application
  • Sandwich type hybrid porphyrin phthalocyanine double layer metal complex nanotube and its preparation method and application
  • Sandwich type hybrid porphyrin phthalocyanine double layer metal complex nanotube and its preparation method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0044] 1.1

[0045] ①Put the anodized aluminum film with a pore size of 200nm into a beaker, then place it in an ultrasonic cleaner, and use solvents of different polarities including water, ethanol, acetone, and chloroform to ultrasonically clean it for ten minutes in sequence, and then vacuum dry it for later use.

[0046] ②Dissolve 0.003mmol Eu(TpyP)(Pc) in 1 mL THF to obtain a solution of Eu(TpyP)(Pc) in THF; soak the dried and clean anodic aluminum oxide film (AAO) in Eu(TpyP)(Pc ) in tetrahydrofuran solution, after standing for 8 hours, the tetrahydrofuran solution was sucked out, and vacuum-dried; Eu(TpyP)(Pc) nanotubes containing AAO were obtained.

[0047] ③The Eu(TpyP)(Pc) nanotubes containing AAO were dissolved with 6 mol / L sodium hydroxide aqueous solution to remove the anodic aluminum oxide film, remove the liquid, and collect the solid product.

[0048] ④ Wash the obtained Eu(TpyP)(Pc) nanotubes with distilled water, and then diffuse them in an aqueous solution ...

Embodiment 2

[0070] Example 2 Preparation of Eu(TpyP)(Pc) nanotube nitrogen dioxide gas sensor

[0071] (1) The substrate of the ITO conductive glass interdigitated electrode was ultrasonically treated three times with toluene, acetone, ethanol, and deionized water, respectively, for five minutes each time, and vacuum-dried for later use.

[0072] (2) Use a dropper to drop-coat 1 mg of Eu(TpyP)(Pc) nanotubes prepared in Example 1 onto the interdigitated electrodes of the above-mentioned treated ITO conductive glass substrate, and let it dry naturally to obtain a gas sensor. The gas sensor of the sensor.

Embodiment 3

[0073] Embodiment 3 Performance measurement of nitrogen dioxide gas sensor

[0074] The gas sensor prepared in Example 2 was used to prepare a Eu(TpyP)(Pc) nanotube gas sensor, a gas sensor test device was constructed, and a gas sensor test was carried out. The gas-sensing test process is carried out in a relatively mild environment (room temperature, external atmospheric pressure and dry air) and a fixed bias voltage of 5V between the two electrodes for gas-sensing performance. Test equipment used: Agilent B290a precision source / measure unit. Wherein, the gas sensor prepared by each Eu(TpyP)(Pc) nanotube prepared in embodiment 1 is tested respectively, and the test results are consistent; Figure 9-13 shown. Such as Figure 9 Shown, Eu(TpyP)(Pc) nanotube gas sensor of the present invention is right 5-100ppmNO 2 The response time is 300 s and the recovery time is 1375 s. Figure 10 It shows that the sensitivity of the Eu(TpyP)(Pc) nanotube gas sensor has a linear relation...

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Abstract

The invention relates to a sandwiched porphyrin-phthalocyanine mixed double-layer metal complex (Eu(TpyP)(Pc)) nanotube and a preparation method and application thereof, and belongs to the technical field of organic semiconductor material chemistry. The Eu(TpyP)(Pc) nanotube is prepared for the first time; the method comprises the steps that 1, Eu(TpyP)(Pc) is dissolved by a specific solvent to form a solution with the concentration being 0.001-0.005 mmol / mL; 2, AAO is soaked into the solution prepared in the step 1, and placed for 8-12 h in a sealed mode; then, the solution is removed, and vacuum drying is performed; 3, a sodium hydroxide water solution with the concentration being 6 mol / L is used for dissolving the AAO in the Eu(TpyP)(Pc) nanotube containing the AAO prepared in the step 2. The preparation method is simple and effective, the experimental process is easy to control and can be executed under the room temperature. The Eu(TpyP)(Pc) nanotube is purified and orderly, toxic gas nitrogen dioxide can be detected under the room temperature, the toxic gas NO2 response concentration is low, the NO2 gas sensitive detection limit under the room temperature is low, response time and recovery time are short, and interference of CO and ammonia gas can be resisted.

Description

technical field [0001] The invention relates to a sandwich-type hybrid porphyrin phthalocyanine double-layer metal complex nanotube and its preparation method and application, belonging to the technical field of organic semiconductor material chemistry. Background technique [0002] The main ways of causing air pollution at present: ①Industrial production produces a large number of flammable, explosive, toxic gases and their mixtures (such as CH 4 、H 2 , NO 2 , CO, etc.); ②In homes and offices, quite a lot of man-made materials volatilize a variety of trace gases (such as aromatic hydrocarbons (benzene, toluene, etc.), ketones and aldehydes, ammonia and amines, etc.); ③ Exhaust fumes from cars. These gases not only pollute the atmospheric environment, but most of them have acute or chronic harmful effects on the human body, and even cause the loss of human life. Therefore, the development and research of gas sensors to detect toxic and harmful gases is of great value to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F5/00G01N27/12
CPCC07F5/003G01N27/125
Inventor 朱沛华王榆成宋非非
Owner UNIV OF JINAN
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