Preparation method of silicon-based heteropolyacid doped magnetic composite membrane material

A heteropolyacid and composite membrane technology, applied in chemical instruments and methods, special compound water treatment, organic compound/hydride/coordination complex catalyst, etc., to achieve excellent Fenton performance, suitable for large-scale industrial production, Simple preparation method

Inactive Publication Date: 2020-07-24
山东特龙谱新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no development of magnetic membranes for organic silicon wastewater treatment.

Method used

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  • Preparation method of silicon-based heteropolyacid doped magnetic composite membrane material
  • Preparation method of silicon-based heteropolyacid doped magnetic composite membrane material
  • Preparation method of silicon-based heteropolyacid doped magnetic composite membrane material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] 0.3 g of ferric nitrate, 0.3 g of cobalt nitrate and 0.01 g of graphene oxide were added to 20 ml (22.68 g) of formamide and stirred for 60 minutes. Then add 0.05 g of silicotungstic heteropoly acid, and continue stirring for 60 minutes. Then add 0.1 part of sodium hydroxide and react in solvent at 90° C. for 80 minutes by solvothermal reaction. The product was filtered with suction and washed with ethanol and water. The filter membrane was dried at 100° C. for 15 hours to obtain a magnetic membrane composite material.

[0030] Depend on figure 1 The scanning electron microscope image shows that its morphology is film-like, composed of graphene oxide and inorganic nanoparticles, and the inorganic nanoparticles are cobalt ferrite magnetic particles doped with silicon-tungsten heteropolyacid. It can be seen from the figure that the nanoparticles are dispersed in the film layer formed by graphene oxide nanosheets.

[0031] Add 0.05g silicon-based heteropolyacid-doped m...

Embodiment 2

[0033] As described in Example 1, the difference is that 0.3 g of nickel nitrate is added, and the silicon-based heteropolyacid-doped magnetic composite film can be completely chlorobenzene within 20 minutes.

Embodiment 3

[0035] As described in Example 1, the difference is that 0.5 gram of iron nitrate and 0.5 gram of cobalt nitrate are added, and the silicon-based heteropolyacid-doped magnetic composite film can be completely chlorobenzene within 20 minutes.

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Abstract

The invention belongs to the technical field of inorganic material preparation, and particularly relates to a preparation method of a silicon-based heteropolyacid doped magnetic composite membrane material. The preparation method comprises the following steps: (1) adding a metal salt A, a metal salt B and graphene oxide into a solvent C, stirring, adding silicon-based heteropolyacid, and continuing to stir uniformly to obtain a mixed solution; (2) dissolving alkali in the mixed solution, and carrying out solvothermal reaction; and (3) carrying out suction filtration on a product prepared by the solvothermal reaction, and respectively washing and drying with ethanol and water to form a film. The preparation method of the silicon-based heteropolyacid doped magnetic composite membrane material is simple, the composition and the structure are controllable, the thickness of the membrane layer is controllable, the membrane layer has magnetism and is convenient to recycle and use, and the problem that the preparation process of the composite membrane material is complex is solved; the method is simple in process flow, environment-friendly, suitable for large-scale industrial production and wide in application prospect; the prepared silicon-based heteropolyacid doped magnetic composite membrane material is excellent in Fenton performance, recyclable and high in structural stability.

Description

technical field [0001] The invention belongs to the technical field of inorganic material preparation, and in particular relates to a preparation method of a silicon-based heteropolyacid-doped magnetic composite membrane material. Background technique [0002] Organosilicon compounds refer to compounds with silicon-carbon bonds. This type of compound has both organic and inorganic structural characteristics, and has many unique features in performance, such as high temperature resistance, low temperature resistance, weather resistance, electrical insulation, and hydrophobicity. And many other excellent characteristics, it has been widely used in textile, automobile, aviation, machinery, electronics and many other fields. The production capacity of organic silicon products in China continues to increase and the technology continues to improve. Thanks to the rapid development of the national economy and China's manufacturing industry, China has become the fastest growing organ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/16C02F1/72C02F101/36
CPCB01J23/888B01J27/188B01J35/0033C02F1/722C02F1/725C02F2101/36C02F2305/026
Inventor 曾庆铭张迪窦国梁王凯张建董志超
Owner 山东特龙谱新材料有限公司
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