Preparation method for dust inhibitor with photocatalytic activity and spraying construction method

A technology of photocatalytic activity and construction method, which is applied in the field of dust suppressant preparation to achieve the effects of environmental friendliness, long duration of effect, and good dust suppression and adsorption performance.

Inactive Publication Date: 2018-06-22
北京首创大气环境科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are no related reports on materials that can be used for photocatalysis and dust suppression. Therefore, it will be of great significance to develop a new dust suppressant that can be used for photocatalytic degradation of VOC pollutants and effective in dust suppression of particulate matter.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The steps of the preparation method of the dust suppressant with photocatalytic activity of the present embodiment are as follows:

[0028] ①. Stir a sufficient amount of anatase-type nano-titanium dioxide powder with water, after ultrasonic treatment, let it stand still, take the supernatant, and irradiate it with visible light in a dark room. If a bright path is found, it proves that the supernatant is colloid, and titanium dioxide is selected The particle size is 1-100nm, and a styrene-acrylic emulsion with a concentration of 1% is added to prepare Sol A;

[0029] 2. Fully mix 0.3:0.2 parts by weight of calcium acetate and magnesium acetate with 30 parts by weight of water to make an aqueous solution of calcium-magnesium acetate salt;

[0030] ③. Add 0.04 parts by weight of sodium dodecylbenzenesulfonate to the calcium magnesium acetate aqueous solution in step ② to prepare solution B.

Embodiment 2

[0032] The steps of the preparation method of the dust suppressant with photocatalytic activity of the present embodiment are as follows:

[0033] ①. Stir a sufficient amount of anatase-type nano-titanium dioxide powder with water, after ultrasonic treatment, let it stand still, take the supernatant, and irradiate it with visible light in a dark room. If a bright path is found, it proves that the supernatant is colloid, and titanium dioxide is selected The particle size is 1-100nm, and a styrene-acrylic emulsion with a concentration of 3% is added to prepare Sol A;

[0034] 2. Fully mix 0.6:0.1 parts by weight of calcium acetate and magnesium acetate with 30 parts by weight of water to make calcium magnesium acetate aqueous solution;

[0035] ③. Add 0.04 parts by weight of sodium dodecylbenzenesulfonate to the calcium magnesium acetate aqueous solution in step ② to prepare solution B.

[0036] The preparation method of the dust suppressant with photocatalytic activity of the ...

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Abstract

The invention relates to a preparation method for a dust inhibitor with photocatalytic activity and a spraying construction method. The preparation method for the dust inhibitor comprises the following steps: preparing sol A and a solution B, namely, stirring anatase type nano titania powder with water, performing ultrasonic treatment, leaving to stand, collecting supernate, and adding a 0.2-5% adhesive so as to obtain sol A, wherein the particle size of the nano titania powder is 1-100nm; sufficiently mixing 0.1-0.9 part by weight of calcium acetate and 0.1-0.9 part by weight of magnesium acetate with 300-100 parts by weight of water so as to obtain a calcium acetate magnesium solution, and putting 0.04-0.2 part by weight of dust inhibition aids into the calcium acetate magnesium solutionso as to obtain the solution B. By adopting the preparation method provided by the invention, a nano TiO2/CMA composite material with an efficient pollutant degradation property can be prepared, andthe composite material has a very good dust inhibition and adsorption property and photocatalytic activity under light radiation and is harmless to the environment.

Description

technical field [0001] The invention relates to a preparation method of a dust suppressant, in particular to a preparation method of a dust suppressant with photocatalytic activity and a spraying construction method. Background technique [0002] In recent years, with the development of the economy, the increase of the coal transportation industry, the construction of urban infrastructure, and the accumulation of garbage and waste, urban dust and VOC pollution have become increasingly serious. [0003] How to reduce dust and VOC pollution has aroused people's great attention. At present, the commonly used dust suppression methods include dust suppressant, wet dust control, setting up windbreak forest and windproof net, building closed structure, and sprinkler method. Among them, dust suppressant is more effective than other methods. , due to its low cost, strong practicability, long validity period, and obvious dust reduction effect, it is widely used in actual engineering p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22B01J21/06B01D53/86B01D53/44B01D53/48B01D53/56E01H3/00
CPCB01D53/8603B01D53/8628B01D53/8687B01J21/06B01J35/004C09K3/22E01H3/00
Inventor 郑向军张伟解刚付丽丽
Owner 北京首创大气环境科技股份有限公司
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