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Method for attaching graphene photocatalyst on surface of artificial water grass

A technology of artificial aquatic plants and photocatalysts, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of small specific surface area of ​​net body, poor sewage degradation effect, water scouring and shedding, etc., to achieve Easy to popularize and apply, increase water impact resistance, simple deployment

Active Publication Date: 2018-12-28
江苏双良环境科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the graphene photocatalyst film coated on the polypropylene net body is not strong enough, and it is easy to be washed off by the water body during the sewage treatment process. In addition, simply placing a net body structure on the sewage treatment water surface is not beautiful enough. , and the specific surface area of ​​the net body is small, and the sewage degradation effect is poor

Method used

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  • Method for attaching graphene photocatalyst on surface of artificial water grass
  • Method for attaching graphene photocatalyst on surface of artificial water grass
  • Method for attaching graphene photocatalyst on surface of artificial water grass

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] According to the above method of attaching graphene photocatalyst to the surface of aquatic plants, attach graphene-modified nano-perovskite photocatalyst to the surface of artificial aquatic plants, wherein the content of graphene-modified nano-perovskite in step S4 is the total weight of graphene photocatalyst solution The content of the aluminum-based crosslinking agent is 2% of the total weight of the graphene photocatalyst solution, and the content of the polyanionic cellulose is 1% of the total weight of the graphene photocatalyst solution.

[0046] Put the artificial aquatic plants with graphene-modified nano-perovskites on the upstream of the river with poor water quality, the length of the base net covers 20% of the width of the river surface, the upper end of the aquatic plants is located 5cm below the water surface, and the total width of the base net is 1km .

[0047] Table 1 Comparison of river water quality before and after treatment (mg / L)

[0048]

Embodiment 2

[0050] According to the method for attaching graphene photocatalyst to the surface of aquatic plants, attach graphene-modified nano-bismuth sulfide photocatalyst to the surface of artificial aquatic plants, wherein the content of graphene-modified nano-bismuth sulfide in step S4 is 63% of the total weight of graphene photocatalyst solution %, the content of the aluminum-based crosslinking agent is the total weight of the graphene photocatalyst solution, 0.2%, and the content of polyanionic cellulose is 2% of the total weight of the graphene photocatalyst solution.

[0051] The artificial aquatic plants are placed on the surface of the artificial lake with inferior V water quality, and the upper end of the artificial aquatic plants is located 10 cm below the water surface, and the total specific surface area of ​​the artificial aquatic plants is 35% of the lake surface area.

[0052] Table 2 Comparison of lake water quality before and after treatment (mg / L)

[0053]

Embodiment 3

[0055] According to the method for attaching graphene photocatalysts to the surface of aquatic plants, attach graphene-modified nano-perovskites and graphene-modified nano-bismuth sulfide photocatalysts to the surface of artificial aquatic plants, wherein in step S4, graphene-modified nano-perovskites, The content of graphene-modified nano-bismuth sulfide is 70% of the total weight of the graphene photocatalyst solution, and the mass ratio of graphene-modified nano-perovskite and graphene-modified nano-bismuth sulfide is 1:1, and the content of aluminum-based crosslinking agent It is 3% of the total weight of the graphene photocatalyst solution, and the content of the polyanionic cellulose is 0.1% of the total weight of the graphene photocatalyst solution.

[0056] Put the artificial aquatic plants attached with graphene-modified nano-perovskite and graphene-modified nano-bismuth sulfide on the surface of the inferior V pond, and make the upper end of the artificial aquatic pla...

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Abstract

The invention discloses a method for attaching a graphene photocatalyst on the surface of artificial water grass. The method includes the steps of artificial water grass cleaning, preparation of artificial water grass pretreatment liquid, artificial water grass pretreatment, preparation of graphene photocatalyst solution, artificial water grass coating and drying. The method is simple to operate.The artificial water grass treated by the method not only can beautify the water surface landscape as ornamental water grass, but also has a water quality purifying function, and the artificial watergrass can be reused, is simple to arrange and has wide application prospect.

Description

technical field [0001] The invention relates to the technical field of water treatment, and specifically designs a method for attaching a graphene photocatalyst on the surface of artificial aquatic plants. Background technique [0002] In the past 20 years, with the rapid development of my country's economy, the scale and speed of the development and utilization of lake resources have been greatly enhanced, which has affected the natural evolution process of lakes and caused serious damage to lake ecosystems. With the rapid development of my country's social economy and urbanization process, the problem of lake water environment pollution has become increasingly prominent. According to the evaluation results of the national comprehensive planning of water resources, the evaluation results of the nutrient status of 84 representative lakes in the country show that 44 lakes are in the eutrophic state throughout the year, accounting for 52.4% of the total number of evaluated lak...

Claims

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Application Information

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IPC IPC(8): B01J21/18B01J27/04B01J35/00C02F1/30
CPCC02F1/30B01J21/18B01J27/04B01J35/39
Inventor 许亮范慧军陈虹仇健缪志强
Owner 江苏双良环境科技有限公司
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