Photocatalytic cement-based material

A cement-based material and photocatalytic technology, applied in the field of building materials, can solve problems such as poor photocatalytic effect, achieve the effects of not causing secondary pollution, achieving uniform distribution, and low preparation cost

Inactive Publication Date: 2020-11-03
WUHAN UNIV OF TECH
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Problems solved by technology

[0004] In view of this, the present invention aims to propose a photocatalytic cement-based material to solve the problem of poor photocatalytic effect of existing photocatalytic cement-based materials

Method used

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Embodiment Construction

[0021] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0022] The present invention will be described in detail below in conjunction with examples.

[0023] The raw material ratios of the photocatalytic cement-based materials of Examples 1 to 6 of the present invention are shown in Table 1, and the raw materials are mixed and stirred evenly according to the raw material ratios shown in Table 1 to obtain the photocatalytic cements of Examples 1 to 6 of the present invention base material. Among them, the water-cement ratio in Table 1 is the ratio of the amount of water in the photocatalytic cement-based material to the amount of cement. For example, when the amount of cement is 100g, the water-cement ratio is 0.35, and the amount of water is 35g.

[0024] The photocatalyst in the photocatalytic cement-based material of Examples 1 to 6 of the present invention is...

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Abstract

The invention provides a photocatalytic cement-based material which is prepared by mixing cement, a photocatalyst, a dispersing agent and water according to the mass ratio of 1:(0.005-0.08):0.001:0.35, wherein the photocatalyst is obtained by modifying layered aluminosilicate with a pillared agent, loading butyl titanate, and carrying out in-situ hydrolysis and calcination. According to the preparation method, the photocatalyst is added into the cement and is compounded with the dispersing agent, so that the photocatalyst can be uniformly dispersed in the cement, the photocatalysis effect of the cement is effectively improved; in the inveniton, the layered aluminosilicate is pillared by adopting the cationic pillared agent, the interlayer domain of the layered aluminosilicate is expanded,and then butyl titanate is introduced between layers, so that the photocatalytic effect of the cement is improved. The photocatalyst obtained by in-situ hydrolysis and calcination can realize uniformdistribution of titanium dioxide between layers, solves the problem that titanium dioxide particles are easy to agglomerate and inactivate, and can further improve the photocatalytic effect of the prepared photocatalytic cement-based material when being used for preparing the photocatalytic cement-based material, thereby effectively solving the problem of air pollution.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a photocatalyzed cement-based material. Background technique [0002] With the rapid development of the industrial level, the problem of environmental pollution has become more and more serious, especially air pollution, automobile exhaust, industrial waste gas, etc. are harmful to health. Studies have found that air pollution can easily induce serious diseases such as cancer, which has been officially listed as " It is one of the "carcinogens" and its harmfulness has exceeded 100 other known carcinogens such as plutonium, ultraviolet radiation and tobacco smoke. In view of the estimation of the cost of disease, the loss caused by environmental problems accounts for 1.2% of the GDP in the annual economic loss. Under the background that the current society emphasizes the strong control of environmental pollution and the establishment of a market-oriented mechanism for e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04
CPCC04B28/04C04B2111/2061C04B14/104C04B24/026C04B24/40C04B24/005C04B22/14
Inventor 谭洪波李懋高张俊杰聂康峻
Owner WUHAN UNIV OF TECH
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