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Preparation method of graphene oxide/bioenzyme nanometer composite material

A nano-composite material and technology of composite materials are applied in the preparation of formaldehyde-degrading nano-composite materials and in the field of anti-haze, which can solve the problems of poor anti-haze effect and weak ability to degrade formaldehyde, and achieve stable and lasting effects and strong ability to degrade formaldehyde. , the effect of low cost

Inactive Publication Date: 2017-07-04
刘宇
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] The second object of the present invention overcomes the difficulties of traditional materials such as poor anti-smog effect and weak ability to degrade formaldehyde

Method used

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  • Preparation method of graphene oxide/bioenzyme nanometer composite material
  • Preparation method of graphene oxide/bioenzyme nanometer composite material

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Embodiment Construction

[0017] first step

[0018] Preparation of biological enzyme: Weigh 10g of soybean peptone and dissolve it in 100ml of deionized water, stir for 12 hours, place the solution in an oil bath, raise the temperature to 80-85°C, and add an appropriate amount of acetic acid, citric acid or formic acid to make the solution The pH value of the solution is 3~5, stirred and hydrolyzed, and the hydrolysis time is 8 hours. After the reaction is completed, the solution is cooled and filtered with a filter membrane to obtain the biological enzyme, which is put into a brown bottle for later use.

[0019] second step

[0020] Preparation of sponge-like three-dimensional graphene oxide:

[0021] (1) Graphene oxide was synthesized by the modified Hummers method. The oxidation process is divided into two stages: the first is the pre-oxidation stage, graphite (3 g), H 2 SO 4 (40 mL, 98%), K 2 S 2 o 8 (2.5 g) and P 2 o 5 (2.5 g) was added to the beaker one by one and stirred, and the oi...

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Abstract

The invention relates to a graphene oxide / bioenzyme nanometer composite material for preventing haze and degrading formaldehyde. A preparation method of the graphene oxide / bioenzyme nanometer composite material comprises 1, preparing a bioenzyme by an acid method and dispersing the prepared bioenzyme into deionized water, 2, preparing porous sponge-like three-dimensional graphene oxide and 3, immersing the porous sponge-like three-dimensional graphene oxide in the bioenzyme solution, and drying the sponge-like three-dimensional graphene oxide carrying the bioenzyme in a drying tank at a temperature of 50 DEG C to obtain the graphene oxide / bioenzyme nanometer composite material for preventing haze and degrading formaldehyde. The graphene oxide / bioenzyme nanometer composite material can effectively filter PM2.5 and other dust particles, has strong formaldehyde degradation effects, has stable and lasting effects, can be used as a filter material of a gauze mask, an air purifier and an air conditioning device and can also be used as a sewage treatment filter material.

Description

technical field [0001] The invention belongs to the technical field of functional materials, and in particular relates to a preparation method of a haze-proof and formaldehyde-degradable nanocomposite material. Background technique [0002] In recent years, with the rapid development of my country's economy, people's living environment has been seriously polluted. Smog frequently occurs in first-tier cities such as Beijing and Shanghai, seriously endangering people's health. The composition of pollutants in the air in haze weather is complex, and there are many types of particles that are harmful to health, especially PM2.5, whose surface can carry a large amount of harmful carcinogens, which can cause various diseases and have a great impact on human health. impact, and even endanger human life. At the same time, the indoor air is not satisfactory. New house decoration and home decorations are releasing formaldehyde all the time. Long-term exposure to excessive formaldehy...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30B01D53/84B01D53/72B01D39/02C01B32/198
CPCB01D39/02B01D53/72B01D53/84B01D2253/102B01J20/20B01J20/24B01J2220/46B01J2220/4806B01J2220/4812Y02A50/20
Inventor 许晶其他发明人请求不公开姓名
Owner 刘宇
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