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Preparation method of naphthalimide-based metal organic framework film, and application of naphthalimide-based metal organic framework film in hydrazine hydrate detection

A naphthalene diimide and organic framework technology, which is applied in the direction of analyzing materials through chemical reactions and observing the impact on chemical indicators, etc., can solve the problem of expensive equipment and long analysis time of chromatographic detection methods and other problems, to achieve the effect of novel method, good recognition effect and simple steps

Active Publication Date: 2020-01-03
FUZHOU UNIV
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Problems solved by technology

Chromatographic detection methods usually have long analysis time and expensive equipment

Method used

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  • Preparation method of naphthalimide-based metal organic framework film, and application of naphthalimide-based metal organic framework film in hydrazine hydrate detection
  • Preparation method of naphthalimide-based metal organic framework film, and application of naphthalimide-based metal organic framework film in hydrazine hydrate detection
  • Preparation method of naphthalimide-based metal organic framework film, and application of naphthalimide-based metal organic framework film in hydrazine hydrate detection

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Embodiment

[0030] A method for preparing a naphthalimide-based metal-organic framework film, the specific steps of which are:

[0031] 1) Synthesis of DSNDI ligand: 1,4,5,8-naphthalene tetracarboxylic anhydride (1.5g, 5.6mmol), p-aminosalicylic acid (2.58g, 16.9mmol), trimethylchlorosilane (7mL, 39.6 mmol) and DMF (8 mL) were added into a one-necked flask, and reacted at 140° C. for 14 hours. After the reaction was completed, it was lowered to room temperature, filtered, ultrasonically cleaned with 100 mL each of ethyl acetate and deionized water for 30 min, and then dried at 80°C. Obtained yellow powder (0.95mg, yield 31.5%), NMR data were δ=8.73(s, 4H), δ=7.97-7.95(d, 2H), δ=7.14(s, 2H), δ=7.05-7.03 (m, 2H);

[0032] 2) Cut the FTO glass into 1*4cm 2 , ultrasonically cleaned with deionized water, ethanol and acetone respectively for 30 minutes, and dried at 100°C for 12 hours, then covered both ends of the FTO glass with scotch tape, leaving the middle part with an area of ​​1*1cm ...

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Abstract

The invention belongs to the field of porous material synthesis and application, and particularly relates to a preparation method of a naphthalimide-based metal organic framework film, and an application of the naphthalimide-based metal organic framework film in hydrazine hydrate detection. The naphthalimide-based metal organic framework film is prepared from a ligand containing a naphthalimido group, zinc nitrate hexahydrate, N,N-dimethylformamide, water, ethanol and an FTO glass coated with nanometer zinc oxide in a disposable scintillation bottle by a hydrothermal technology. The prepared film has a good recognition effect on hydrazine hydrate steam. The method has the advantages of novelty, uniqueness, simple experimental steps are simple, avoiding of a complex post-treatment process,and obtaining of the required film through a one-step reaction, and the prepared film provides a good application prospect for the material in the fields of ion recognition and the like.

Description

technical field [0001] The invention belongs to the field of synthesis and application of porous materials, and in particular relates to a preparation method of a naphthalimide-based metal organic framework film and its application in the detection of hydrazine hydrate. Background technique [0002] Metal-organic frameworks (MOFs) are porous crystalline materials with periodic network structures formed by the self-assembly process of small molecule ligands and metal ions. MOFs have the characteristics of porosity, structural and functional diversity, and unsaturated metal sites, and their applications mainly include gas storage, gas separation, small molecule recognition, drug delivery, and heterogeneous catalysis, etc., so they have attracted great attention. [0003] Hydrazine hydrate is a strong reducing agent and basic compound widely used in industry. Hydrazine hydrate is highly toxic, unstable under anhydrous conditions, and volatile at room temperature, and can enter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G83/00C08J5/18G01N21/78C08L87/00
CPCC08G83/008C08J5/18C08J2387/00G01N21/78
Inventor 郭智勇林俊宇
Owner FUZHOU UNIV
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