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Preparation method of MOF (metal-organic framework)-199 supported nanoparticle composite material

A technology of MOF-199 and nanoparticles, which is applied in the field of preparation of MOF-199 loaded nanoparticles

Inactive Publication Date: 2018-04-17
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, various complex environmental problems are becoming more and more serious, especially the large amount of waste water containing organic matter produced by industrial production processes, which has become the biggest social and economic problem

Method used

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  • Preparation method of MOF (metal-organic framework)-199 supported nanoparticle composite material

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Embodiment 1

[0024] A preparation method of MOF-199 loaded nanoparticles, the MOF-199 loaded nanoparticle composite material is MOF-199 loaded Fe 3 o 4 Magnetic nanoparticle composite material, the steps are as follows:

[0025] 1) PVP-coated Fe 3 o 4 Preparation of Magnetic Nanoparticles

[0026] 1.08g FeCl 3 ·6H 2 O was dissolved in 40mL of a mixed solvent of ethylene glycol and diethylene glycol (volume ratio 1:19), ultrasonicated for 30min, added 3g of anhydrous sodium acetate and stirred to dissolve, then added 4g of PVP and dissolved completely, and then uniformly suspended The solution was transferred to a reaction kettle with a polytetrafluoroethylene liner, and reacted at 200°C for 12h. After the reaction, the solid product was magnetically separated, washed three times with water and ethanol, and then dried in vacuum at 60°C for 12 hours to obtain PVP-coated Fe 3 o 4 magnetic nanoparticles;

[0027] figure 1 (A) PVP-coated Fe 3 o 4 Magnetic nanoparticles, as shown in ...

Embodiment 2

[0032] A preparation method of MOF-199 loaded nanoparticles, the MOF-199 loaded nano particle composite material is MOF-199 loaded Pt metal nano particle composite material, the steps are as follows:

[0033] 1) Preparation of Pt nanoparticles coated with PVP

[0034] First prepare the Pt seed solution: add H 2 PtCl 6 ·6H 2 30 μmol of O was dissolved in a mixed solution of 45 mL of methanol and water (volume ratio of 9:1), and 30 μmol of PVP was added and stirred to dissolve, stirred at reflux for 3 hours at 70° C., and cooled to room temperature to obtain a Pt seed crystal solution;

[0035]Take 5 mL of Pt seed crystal solution and add it to 50 mL of 1 mM chloroplatinic acid solution, then add 0.6 mmol of ascorbic acid, stir at room temperature until the color of the solution turns black, centrifugally separate PVP-coated Pt metal nanoparticles, and disperse it in 15 mL of dimethylformaldehyde In sulfoxide;

[0036] figure 1 (C) shows that the synthesized Pt metal nanopa...

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Abstract

The invention provides a preparation method of an MOF (metal-organic framework)-199 supported nanoparticle composite material. The MOFs composite material is an MOF-199 supported Fe3O4 or a noble metal nanoparticle composite material. The preparation method comprises following steps: firstly, PVP (polyvinyl pyrrolidone) coated magnetic nanoparticles and noble metal nanoparticles are prepared and dispersed in an MOF-199 precursor solution, and the MOF-199 supported nanoparticle composite material is synthesized through in-situ one step with a traditional hydrothermal method. The preparation method of the MOF-199 supported nanoparticle composite material has the advantages of being simple and easy to implement; the synthesis material integrates double excellent characteristics of magnetic ornoble metal and MOF-199, and can be used as biological mimic enzyme for catalytic degradation of organic pollutants in environmental water.

Description

【Technical field】 [0001] The present invention relates to a preparation method of MOF-199 loaded nanoparticles, especially MOF-199 loaded Fe 3 o 4 Or the preparation method of noble metal nanoparticle composite material. 【Background technique】 [0002] Metal-organic frameworks (MOFs), also known as porous coordination polymers, are a new type of organic-inorganic porous materials, which use rigid polyhedral organic ligands and metal ions or metal clusters as centers. A porous material with a periodic network skeleton structure formed by self-assembly through site interaction. It has high specific surface area and porosity, diverse skeleton structure and good chemical stability. Compared with traditional inorganic porous materials, its application fields are wider, such as: adsorption separation, gas storage, catalysis, drug delivery and biological imaging and other fields. [0003] In recent decades, my country's industrialization process has continued to accelerate, whi...

Claims

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Application Information

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IPC IPC(8): B01J31/28C02F1/58C02F101/30
CPCC02F1/58B01J31/28C02F2101/30B01J35/33
Inventor 黄艳凤马丽李颖郭思维
Owner TIANJIN POLYTECHNIC UNIV
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