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A method of attaching graphene photocatalyst on stone surface

A photocatalyst and graphene technology, applied in the field of water treatment, can solve the problems of hindering river traffic and cumbersome installation of graphene photocatalytic nets, and achieve the effect of convenient material selection, simple operation, and increased water shock resistance

Active Publication Date: 2021-04-13
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, there are cumbersome installation methods of graphene photocatalytic nets, and the deployment of graphene photocatalytic nets in rivers or landscape lakes will hinder river traffic and other problems.

Method used

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  • A method of attaching graphene photocatalyst on stone surface
  • A method of attaching graphene photocatalyst on stone surface
  • A method of attaching graphene photocatalyst on stone surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] According to the above-mentioned method of attaching graphene photocatalyst on stone surface, attach graphene modified nano perovskite photocatalyst on limestone surface, wherein in step S4, graphene modified nano perovskite content is graphene photocatalyst solution gross weight 55%, 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.

[0036] Limestone with graphene-modified nano-perovskite attached is placed on the bottom of the inferior V pond, and the upper end of the limestone is located 10 cm below the water surface, and the total specific surface area of ​​the limestone is 20% of the pond area.

[0037] Table 1 Comparison of pond water quality before and after treatment (mg / L)

[0038]

Embodiment 2

[0040]According to the method for attaching a graphene photocatalyst to the surface of the stone, a graphene-modified nano-bismuth sulfide photocatalyst is attached to the surface of the stone, wherein the content of the graphene-modified nano-bismuth sulfide in step S4 is 63% of the total weight of the 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.

[0041] Put the top water stone attached with graphene-modified nano-bismuth sulfide on the bottom of the inferior V artificial lake, and make the upper end of the top water stone 10cm below the water surface, and the total specific surface area of ​​the top water stone is 30% of the lake surface area .

[0042] Table 2 Comparison of lake water quality before and after treatment (mg / L)

[0043]

[0044]

Embodiment 3

[0046] According to the above-mentioned method for attaching graphene photocatalysts on the stone surface, attach graphene-modified nano-perovskites and graphene-modified nano-bismuth sulfide photocatalysts on the cobblestone surface, wherein in step S4, graphene-modified nano-perovskites, graphite The content of alkene-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.

[0047] Place the pebbles attached with graphene-modified nano-perovskite and graphene-modified nano-bismuth sulfide on the upstream riverbed of the inferior V water quality river, and make the upper end of the pebbles 10cm below ...

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Abstract

The invention discloses a method for attaching a graphene photocatalyst on the surface of a stone, comprising six steps of cleaning the base stone, configuring the base stone pretreatment liquid, pretreating the base stone, configuring the graphene photocatalyst solution, coating the base stone, and drying , the method is simple to operate, and the stone processed by the method can not only be used as an ornamental stone to beautify the water surface landscape, but also has the function of purifying water quality, and the stone can be reused, and the layout is simple, so it has a 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 a stone surface. 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 lakes, and the rest of the l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26B01J31/38B01J35/02C02F1/30
CPCB01J31/26B01J31/38B01J35/004B01J35/02C02F1/30
Inventor 仇健许亮陈虹范慧军缪志强
Owner 江苏双良环境科技有限公司