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Water purifying material preparation method

A technology of water purification and chitosan, which is applied in the field of water pollution treatment, can solve the problems of easy falling off, difficulty in obtaining the catalytic film layer, uneven film layer, etc., and achieve the effects of environmental protection, good economic benefits, and excellent catalytic oxidation performance

Inactive Publication Date: 2017-12-19
WUHAN QIANRUITAI ENVIRONMENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the prior art, titanium dioxide is used to degrade volatile organic pollutants in the air, and it is difficult to obtain a catalytic film layer. The catalytic film layer is often obtained by dipping, and the film layer is uneven and easy to fall off.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The invention provides a kind of preparation method of water purification material, comprises following steps (1) under the condition of stirring, graphite oxide is dissolved in acetic acid solution, obtains graphene oxide solution; (2) take chitosan and add water to dissolve, add to Add acetic acid to it to form a colloidal liquid, add titanium dioxide at a constant temperature reaction temperature, and stir for 2 to 4 hours to prepare a blended liquid; (3) Add the blended liquid dropwise to the sodium hydroxide solution to form a gel with a diameter of 1 mm. (4) Take out the particles and put them in the cross-linking agent to react for 1.5h; (5) Wash the cross-linked material with distilled water and freeze-dry to obtain titanium dioxide-chitosan-graphite oxide Alkene composite particles.

[0019] As a further improvement of the present invention, the mass ratio of graphite oxide to chitosan is 3:100.

[0020] As a further improvement of the present invention, the m...

Embodiment 2

[0026] The invention provides a kind of preparation method of water purification material, comprises following steps (1) under the condition of stirring, graphite oxide is dissolved in acetic acid solution, obtains graphene oxide solution; (2) take chitosan and add water to dissolve, add to Add acetic acid to it to form a colloidal liquid, add titanium dioxide at a constant temperature reaction temperature, and stir for 2 to 4 hours to prepare a blended liquid; (3) Add the blended liquid dropwise to the sodium hydroxide solution to form a gel with a diameter of 1 mm. (4) Take out the particles and put them in the cross-linking agent to react for 1.5h; (5) Wash the cross-linked material with distilled water and freeze-dry to obtain titanium dioxide-chitosan-graphite oxide Alkene composite particles.

[0027] As a further improvement of the present invention, the mass ratio of graphite oxide to chitosan is 5:100.

[0028] As a further improvement of the present invention, the m...

Embodiment 3

[0034] The invention provides a kind of preparation method of water purification material, comprises following steps (1) under the condition of stirring, graphite oxide is dissolved in acetic acid solution, obtains graphene oxide solution; (2) take chitosan and add water to dissolve, add to Add acetic acid to it to form a colloidal liquid, add titanium dioxide at a constant temperature reaction temperature, and stir for 2 to 4 hours to prepare a blended liquid; (3) Add the blended liquid dropwise to the sodium hydroxide solution to form a gel with a diameter of 1 mm. (4) Take out the particles and put them in the cross-linking agent to react for 1.5h; (5) Wash the cross-linked material with distilled water and freeze-dry to obtain titanium dioxide-chitosan-graphite oxide Alkene composite particles.

[0035] As a further improvement of the present invention, the mass ratio of graphite oxide to chitosan is 4:100.

[0036] As a further improvement of the present invention, the m...

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Abstract

The purpose of the present invention is to provide a preparation method of a water purification material with good electron transport performance, uniform film layer and high mechanical strength. The chitosan in the preparation method of the present invention has good adsorption performance, is environmentally friendly, and has stable performance in preparing composite materials with titanium dioxide and graphene, and can increase the tensile performance, tear resistance and adsorption performance of the composite materials , It is also convenient for the recycling of water purification materials.

Description

technical field [0001] The invention relates to a preparation method of a water purification material, in particular to a preparation method of a modified titanium dioxide-chitosan-graphene oxide composite material, which belongs to the technical field of water pollution treatment. Background technique [0002] Chitosan and its derivatives have good flocculation and clarification effects. As a clarifying agent for beverages, it can quickly flocculate suspended matter, naturally precipitate, and increase the yield of the original solution; in the extract of traditional Chinese medicine, large molecular proteins, tannic acid and pectin can be easily removed with chitosan solution and refined The active ingredients of traditional Chinese medicine with high purity are produced; the adsorption of chitosan is used to have a good effect in water purification. [0003] Titanium dioxide is a photocatalytic material with excellent performance. The photocatalytic material can generate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/20C02F1/28C02F1/50C02F1/72B01J31/38A01N59/16A01N43/16A01P1/00A01P3/00
CPCB01J20/24A01N43/16A01N59/16B01J20/06B01J20/20B01J31/38C02F1/281C02F1/286C02F1/50C02F1/725C02F2303/02C02F2303/04
Inventor 周文婷罗超何运良
Owner WUHAN QIANRUITAI ENVIRONMENT TECH CO LTD
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