Method for allowing concrete to have water purification function and concrete with water purification function

A water purification and concrete technology, which is applied in the direction of chemical instruments and methods, inorganic chemistry, silicon compounds, etc., can solve the problems of no water purification ability and poor purification ability, so as to improve sewage purification efficiency, overcome poor bonding, and increase contact area Effect

Inactive Publication Date: 2019-10-08
UNIV OF JINAN +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the lack of water purification ability or poor purification ability of conventional concrete, and provides a method for making concrete have water purification function, which can also be called a method for improving the water purification function of concrete. This method is self-developed by using The graphene-silicon-based hybrid material is used to treat the concrete surface, so that the concrete has a good water purification ability and has a good application prospect

Method used

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  • Method for allowing concrete to have water purification function and concrete with water purification function
  • Method for allowing concrete to have water purification function and concrete with water purification function
  • Method for allowing concrete to have water purification function and concrete with water purification function

Examples

Experimental program
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Effect test

Embodiment 1

[0032] 1. Select the raw material of the graphene-silicon-based nano-hybrid material according to the following mass percentages: 2.64% tetraethyl orthosilicate, 0.29% graphene oxide, and an appropriate amount of glacial acetic acid (make the pH of the graphene-silicon-based nano-hybrid material be 3~4), make up 100% of the water.

[0033] 2. According to the above formula, add an appropriate amount of graphene oxide into 100ml of deionized water, stir evenly for 1min, ultrasonically disperse for 6h, then slowly drop in ethyl orthosilicate under the stirring condition of 800r / min, and use glacial acetic acid The pH of the solution was slowly adjusted to 3-4, and then the stirring reaction was continued for 15 hours to obtain a graphene-silicon-based nano-hybrid material.

Embodiment 2

[0035] 1. Select the raw materials of the graphene-silicon-based nano-hybrid material according to the following mass percentages: 3.33% tetraethyl orthosilicate, 0.37% graphene oxide, and an appropriate amount of glacial acetic acid (make the pH of the graphene-silicon-based nano-hybrid material be 3~4), absolute ethanol 46.27%, water to make up 100%.

[0036] 2. According to the above formula, add an appropriate amount of graphene oxide into absolute ethanol, stir evenly for 1 minute, ultrasonically disperse for 6 hours, then add water, and slowly drop in tetraethyl orthosilicate under the stirring condition of rotating speed 800r / min , slowly adjust the pH of the solution to 3-4 with glacial acetic acid solution, and then continue to stir and react for 15 hours to obtain a graphene-silicon-based nano-hybrid material and make a graphene-silicon-based nano-hybrid material.

Embodiment 3

[0038]1. Select the raw materials of the graphene-silicon-based nano-hybrid material according to the following mass percentages: 3.33% tetraethyl orthosilicate, 0.37% graphene oxide, and an appropriate amount of glacial acetic acid (make the pH of the graphene-silicon-based nano-hybrid material be 3~4), make up 100% with absolute ethanol.

[0039] 2. According to the above formula, add an appropriate amount of graphene oxide into 100ml of absolute ethanol, stir evenly for 1min, ultrasonically disperse for 6h, then slowly drop in tetraethyl orthosilicate under the stirring condition of 800r / min, and use ice Slowly adjust the pH of the solution to 3-4 with the acetic acid solution, and then continue to stir and react for 15 hours to obtain the graphene-silicon-based nano-hybrid material and make the graphene-silicon-based nano-hybrid material.

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Abstract

The invention discloses a method for allowing concrete to have a water purification function and the concrete with the water purification function. The concrete is allowed to have the water purification function by spraying a graphene-silicon-based nano hybrid material to the surface of the concrete, wherein the graphene-silicon-based nano hybrid material comprises tetraethyl orthosilicate, graphene oxide, acid and a solvent. The method and the concrete have the advantages that the porous concrete is combined with the graphene-silicone-based nano hybrid material, the contact area between graphene and sewage is increased greatly by using the features of large porosity and good water permeability of the porous concrete, and the adsorption performance of the graphene can be brought into fullplay; the graphene-silicon-based nano hybrid material is sprayed to the surface of the concrete, the use amount of the nano hybrid material is lowered, the contact area between the nano hybrid material and the sewage is increased, sewage purification efficiency is increased, the difficulty that the combining effect of the graphene and the concrete is poor is overcome, and the durability of the water purification function is increased.

Description

technical field [0001] The present invention relates to a method for endowing concrete with a water purification function, in particular to a method for treating concrete with a graphene-silicon-based nano-hybrid material so that the concrete has a water purification function, and also relates to a water purification function Concrete belongs to the technical field of building materials. [0002] technical background [0003] Sponge city refers to a city with excellent water seepage and water purification performance. The development of sponge city enables the urban groundwater system to be effectively supplemented and maintained. Surface water can enter the ground through the infiltration system to form a cycle. Surface water (such as rainwater, production and domestic drainage, etc.) often carries harmful or even toxic ions after human intervention, causing serious harm to the urban water circulation system, and effective means are urgently needed to purify it. [0004] Po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04B01J20/10B01J20/20E01C7/14E01C7/35E01C11/22
CPCC04B28/04B01J20/20B01J20/103E01C7/356E01C7/14E01C7/142E01C11/226C04B2111/0075C04B14/02C04B14/024C04B14/06
Inventor 侯鹏坤王涵董晓霞谢宁李琴飞陈衡张丽娜张秀芝杜鹏王丹程新
Owner UNIV OF JINAN
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