Preparation and application of metal organic framework material Ni-based MOF-74

A metal-organic framework, MOF-74 technology, applied in scattering characteristics measurement, color/spectral characteristics measurement, air quality improvement and other directions, can solve the problems of small detection range of the sensor, complicated testing, cumbersome preparation process, etc., to achieve a simple inspection process The effect of easy operation, low preparation cost and simple preparation process

Active Publication Date: 2022-07-08
HARBIN BOILER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the invention is to solve the existing CO 2 The sensor detection range is small, the preparation process is cumbersome, and the test is complicated, and the preparation and application of a metal-organic framework material Ni-based MOF-74 is provided.

Method used

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  • Preparation and application of metal organic framework material Ni-based MOF-74
  • Preparation and application of metal organic framework material Ni-based MOF-74
  • Preparation and application of metal organic framework material Ni-based MOF-74

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specific Embodiment approach 1

[0019] Embodiment 1: This embodiment is a preparation method of metal organic framework material Ni-based MOF-74, which is realized according to the following steps:

[0020] 1. Use detergent, acetone, deionized water and absolute ethanol to ultrasonically clean the ITO glass in turn, and then perform plasma hydrophilization treatment after drying to obtain the treated ITO glass;

[0021] 2. Using DMF as solvent, prepare 1~10mmol / L Ni(NO) 3 ) 2 ·6H 2 O and 1~10mmol / L 2,5-dihydroxyterephthalic acid solution;

[0022] 3. Take the above Ni (NO 3 ) 2 ·6H 2 O, 2,5-dihydroxyterephthalic acid solution and deionized water were mixed and transferred to a 6 mL round-bottomed glass tube. It is placed in a reaction kettle and reacted at 110-130° C. for 10-14 hours to obtain a metal-organic framework material, which is Ni-based MOF-74, and the preparation method is completed.

specific Embodiment approach 2

[0023] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the ultrasonic cleaning time in step 1 is 15-25 minutes. Other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the plasma hydrophilization treatment in step 1: the dried ITO glass is soaked in a 1 mol / L KOH ethanol solution for 30 minutes. Other steps and parameters are the same as in the first or second embodiment.

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Abstract

The invention relates to preparation and application of a metal organic framework material Ni-based MOF-74, and aims to solve the problems that an existing CO2 sensor is small in detection range, tedious in preparation process and complex in test. The preparation method comprises the following steps: 1, pretreating ITO glass; 2, preparing a Ni (NO3) 2.6 H2O and 2, 5-dihydroxy terephthalic acid solution by taking DMF (Dimethyl Formamide) as a solvent; and 3, preparing a mixed solution, putting the mixed solution into ITO glass, and reacting in a reaction kettle to obtain the Ni-based MOF-74. The method is applied to preparation of a CO2 gas detector so as to carry out full-concentration detection of CO2. The microporous structure and the high specific surface area of the Ni-based MOF-74 provide guarantee for CO2 adsorption. The prepared CO2 gas detector has the advantage of wide CO2 detection range, can be used for full-concentration detection of CO2, and is simple in detection process, easy to operate, low in cost, simple in process and suitable for industrial production. The Ni-based MOF-74 prepared by the preparation method disclosed by the invention is applied to a CO2 gas detector.

Description

technical field [0001] The invention specifically relates to the preparation and application of a metal-organic framework material Ni-based MOF-74. Background technique [0002] With the rapid development of urbanization and industrialization, the consumption of fossil fuels is increasing year by year, and the emission of greenhouse gases is also increasing year by year, resulting in the increasing greenhouse effect. As global warming worsens, the frequency of extreme weather around the world increases, and biodiversity is seriously threatened. During global warming, carbon dioxide (CO 2 ) plays the largest role in many greenhouse gases. In order to actively respond to the environmental protection policies of "carbon peaking" and "carbon neutrality", online real-time monitoring of CO 2 Emissions are important. CO 2 Detection technology has been in a stage of slow development, and the existing sensors mainly have shortcomings such as cumbersome preparation process, small ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00G01N21/25G01N21/55
CPCC08G83/008G01N21/55G01N21/25Y02C20/40
Inventor 郝维勋王硕史丹程义杜谦董鹤鸣张虔魏力民徐洪波
Owner HARBIN BOILER
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