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Titanium dioxide gold granular composite mesoporous film material, preparation method and application

A technology of composite mesoporous and thin-film materials, applied in chemical instruments and methods, catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of poor practicability and unsatisfactory catalytic performance of powder materials, etc. problem, to achieve the effect of high-efficiency catalytic performance

Inactive Publication Date: 2014-04-02
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The catalytic performance of the powder material prepared by this method is still not ideal, and the practicability is poor.
Since then, there have been no research reports on high-efficiency photocatalytic performance at home and abroad.

Method used

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  • Titanium dioxide gold granular composite mesoporous film material, preparation method and application
  • Titanium dioxide gold granular composite mesoporous film material, preparation method and application
  • Titanium dioxide gold granular composite mesoporous film material, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Under normal pressure, dissolve the organic template KLE in a mixture of ethanol and tetrahydrofuran according to the components specified in Table 1, and sonicate for 20 minutes until the organic template is completely dissolved, add gold nanoparticles suspended in ethanol, and slowly Titanium tetrachloride was added dropwise and stirred for 10 minutes, and the obtained solution was stirred for 4 hours to prepare a thin film precursor solution. A film was prepared on a silicon substrate by a dip coating method, and dried in an air environment at 80° C. for 2 hours to evaporate the solvent to obtain a uniform film. Afterwards, the film was baked in an air environment at 300°C for 12 hours, then the temperature was raised to 500°C at 5°C per second, and then to 610°C at 10°C per second, kept for 1 minute, and then cooled. A composite thin film of mesoporous titanium dioxide gold particles with a thickness of 100-200 nanometers is obtained, and the molar content of the go...

Embodiment 2

[0033] Repeat the method of Example 1 by the content of each component specified in the following Table 1, but the addition of nano-gold decreases, and the molar content of the control gold particles is 0.1%. The test results are listed in Table 1.

Embodiment 3

[0035] The method of Example 1 was repeated according to the content of each component specified in Table 1 below, but no gold nanoparticles were added, and the test results are listed in Table 1.

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Abstract

The invention relates to a titanium dioxide gold granular composite mesoporous film material which is characterized in that a titanium dioxide material has a mesoporous structure; the pore size is between 2 and 10 nm; and the mass percent of gold is between 0.0001% and 10%. An organic template method is adopted for preparing the film material. The prepared titanium dioxide gold granular composite mesoporous film material has efficient catalytic property, can be used for a catalyst, and is especially used for an efficient catalyst for treating environmental pollution.

Description

technical field [0001] The invention relates to a titanium dioxide gold particle composite mesoporous film material, a preparation method and an application, and belongs to the field of inorganic material catalysis. Background technique [0002] With the acceleration of current social progress, industrial waste water, automobile exhaust and domestic waste are more serious to the environment and seriously threaten human health. Treatment or control of pollution emissions has become a global issue of common concern. [0003] In 1998, in G.D.Stucky et al. (1) It was reported for the first time that the hexagonal phase SBA-15 mesoporous material with high specific surface area and high order degree was synthesized under acidic conditions by using non-ionic tri-block polymer P 123 (polyoxyethylene polyoxypropylene copolymer), and people have paid attention to mesoporous materials. The synthesis of porous materials and their applications in molecular sieves, catalysis, adsorption...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/52B01J35/10B01J35/00B01J37/00A62D3/00A62D101/20
Inventor 赵晋津陈航榕施剑林
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI