Photocatalytic concrete material to which titanium dioxide/activated zeolite composite material is sprayed and preparation method of photocatalytic concrete material
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However, there are problems such as low degradation efficiency, poor wear resistance, short service life, and high application cost:
However, in industrial production, related equipment such as rubber powder preparation and fly ash screening requires large investment and high production costs, making it difficult to carry out large-scale practical applications.
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preparation example Construction
[0036] Another aspect of the present invention, a preparation method of a photocatalytic concrete material sprayed with titanium dioxide / activated zeolite composite material, comprises the following steps:
[0037] Step S1: Activate the natural zeolite molecular sieve to obtain activated zeolite molecular sieve, which specifically includes washing the natural zeolite molecular sieve with distilled water, putting the cleaned natural zeolite molecular sieve into an oven for drying, and the temperature of the oven is 70-90°C , dried and moved into a high-temperature furnace for calcination to obtain activated activated zeolite molecular sieves.
[0038] Step S2: preparing activated zeolite molecular sieve and tetrabutyl titanate, absolute ethanol, acetic acid, nitric acid and other raw materials into a titanium dioxide / activated zeolite composite material, which specifically includes: step S2a: dissolving tetrabutyl titanate in In water and ethanol, stir to form the first mixture...
Embodiment 1
[0044] A preparation method of a photocatalytic concrete material sprayed with titanium dioxide / activated zeolite composite material (mass ratio is 1:0.5), comprising the following steps:
[0045] (1) The natural zeolite molecular sieve is activated to obtain activated zeolite molecular sieve:
[0046] Wash the natural zeolite molecular sieve with distilled water, then put the cleaned natural zeolite molecular sieve into an oven for drying, the oven temperature is 80°C, after drying, move it into a high-temperature furnace for calcination for 2 hours, and finally obtain an activated zeolite molecular sieve.
[0048] Dissolve 6ml of tetrabutyl titanate in 24ml of absolute ethanol, mix and stir to form a solution. During the magnetic stirring process, the activated zeolite molecular sieve (5A) was slowly poured into the above mixed solution at a mass ratio of 1:0.5, stirred for 10 minutes, and th...
Embodiment 2
[0056] The difference from Example 1 is that the ratio of titanium dioxide to activated zeolite is 1:1. All other steps are the same.
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Abstract
The invention provides a photocatalytic concrete material to which a titanium dioxide / activated zeolite composite material is sprayed and a preparation method of the photocatalytic concrete material. The photocatalytic concrete material to which a titanium dioxide / activated zeolite composite material is sprayed is prepared from, by weight, 0.1-20 parts of titanium dioxide, 0.1-20 parts of activated zeolite molecular sieve, 0.1-5 parts of dispersant, 0.05-2 parts of emulsifier, 0.05-2 parts of coupling agent, 40-90 parts of cement, 40-90 parts of fine sand and the balance water. The activated zeolite molecular sieve is suitable for serving as a carrier and can well load a titanium dioxide photocatalytic material, due to the large specific area (280.1 m<2) / g), gaseous pollutants in automobile exhaust can be easily adsorbed, photocatalytic degradation efficiency is improved accordingly, the photocatalytic degradation rate of the material can reach 92%, the advantages that the preparation process is simple, production raw materials are cheap, and the total preparation cost is low are achieved, and the photocatalytic concrete material is suitable for industrial production.
Description
technical field [0001] The invention relates to the field of engineering materials, in particular to a photocatalytic concrete material sprayed with a titanium dioxide / activated zeolite composite material and a preparation method thereof. Background technique [0002] As the most widely used engineering material in the world, concrete plays its role in various fields. In order to give full play to the various excellent properties of concrete and meet the needs of building materials, experts from all over the world have studied and prepared concrete with unique properties that can be applied to more fields. [0003] With the rapid development of industrialization and urbanization, the problem of environmental pollution has become an important problem that affects people's health and national development. Photocatalytic technology is a new type of environmental protection technology that can degrade some pollutants. In the preparation of photocatalytic materials, nano-titani...
Claims
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