Preparation method of photocatalysis materials of biomorphic fine hiberarchy

A photocatalytic material, hierarchical structure technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as the lack of advantages in catalytic properties, achieve outstanding decomposition efficiency, and facilitate photocatalytic performance. , the effect of broad application prospects

Inactive Publication Date: 2010-03-10
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent 200810042475.1 is titled "Method for preparing porous iron-doped titanium dioxide photocatalyst", the prepared porous iron-doped titanium dioxide photocatalyst is limited to the application under ultraviolet light, and the catalytic properties under sunlight have no advantages

Method used

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  • Preparation method of photocatalysis materials of biomorphic fine hiberarchy
  • Preparation method of photocatalysis materials of biomorphic fine hiberarchy
  • Preparation method of photocatalysis materials of biomorphic fine hiberarchy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Select the black part of the biological material Papilio paris butterfly wing as a biological template, soak it in 5% hydrochloric acid for 1 hour, take it out and wash it fully with distilled water, then immerse it in 8% sodium hydroxide solution at 50 ℃ water bath for 1 hour, take it out and rinse it with distilled water, and then air-dry it in an oven at 50 ℃ to obtain the pretreated butterfly wings.

[0024] Add 1mL of tetrabutyl titanate dropwise into a mixed solution of cyclohexane (20mL), oleic acid (15mL) and triethylamine (5mL), stir well to obtain an impregnation solution, transfer it into a reaction kettle, and put the The treated butterfly wings are immersed in the dipping solution, and kept at 150°C for 24 hours. After natural cooling, the butterfly wings are taken out of the reaction kettle, cleaned with organic solvents, clamped with glass sheets, and placed in an oven at 60°C. Air dry.

[0025] Put the dried butterfly wings into a high-temperature furna...

Embodiment 2

[0031] Select the black part of the biological material Papilio paris butterfly wing as a biological template, soak it in 5% hydrochloric acid for 1 hour, take it out and wash it fully with distilled water, then immerse it in 8% sodium hydroxide solution at 50 ℃ water bath for 1 hour, take it out and rinse it with distilled water, and then air-dry it in an oven at 50 ℃ to obtain the pretreated butterfly wings.

[0032]Add 1mL of tetrabutyl titanate dropwise into a mixed solution of cyclohexane (20mL), oleic acid (7mL) and triethylamine (5mL), stir well to obtain an impregnation solution, transfer it into a reaction kettle, and put the The treated butterfly wings are immersed in the dipping solution, and kept at 150°C for 48 hours. After natural cooling, the butterfly wings are taken out of the reaction kettle, cleaned with organic solvents, clamped with glass sheets, and placed in an oven at 60°C. Air dry.

[0033] Put the dried butterfly wings into a high-temperature furnace...

Embodiment 3

[0035] Select the black part of the Paris Emerald Papillon butterfly wing as a biological template, soak it in 5% dilute hydrochloric acid for 1 hour, take it out and wash it fully with distilled water, and then immerse it in a dilute sodium hydroxide solution with a mass concentration of 8%. Soak it in a water bath at 50°C for 1 hour, take it out and rinse it with distilled water, and then dry it in an oven at 50°C to obtain the pretreated butterfly wings.

[0036] Add 1mL of tetrabutyl titanate dropwise into a mixed solution of cyclohexane (20mL), oleic acid (20mL) and triethylamine (5mL), stir well to obtain an impregnation solution, transfer it into a reaction kettle, and put the The treated butterfly wings are immersed in the dipping solution, and kept at 150°C for 24 hours. After natural cooling, the butterfly wings are taken out of the reaction kettle, cleaned with organic solvents, clamped with glass sheets, and placed in an oven at 60°C. Air dry.

[0037] Put the dri...

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Abstract

The invention relates to a preparation method of photocatalysis materials of biomorphic fine hiberarchy. Nanometer titanium dioxide of biomorphic fine hiberarchy used as a photocatalysis material is obtained on the basis of the synthetic technology of biological templates by combining solvothermal technology, adopting butterfly wings with fine hiberachy as the material of the biological template and conducting solvothermal dipping treatment after pre-treating and activating the butterfly wings, as well as conducting ignition oxidation treatment. The preparation method is simple in process andlow in cost, and the obtained titanium dioxide nanometer material with biomorphic fine hiberarchy has excellent photocatalysis performance. The method can also be used for preparing air-sensitive andpressure-sensitive elements, non-linear optical materials, solar cells, environment purifying materials and the like, and the obtained materials have broad application prospect in the fields such as electronic and electrical industry, industries, environment protection, etc.

Description

technical field [0001] The invention relates to a preparation method of a nano-titanium dioxide photocatalytic material with a fine hierarchical structure of a biological form. Specifically, it refers to the use of butterfly wings as a biological template, through several steps of pretreatment, activation, impregnation, and heat treatment of butterfly wings, to prepare a titanium dioxide semiconductor material with a finely graded biological morphology, high specific surface area, and high light absorption. The invention has high solar light decomposition efficiency and photocatalytic stability for organic matter, and belongs to the technical field of functional materials. Background technique [0002] The environmental pollution caused by industrial development, especially the pollution of water, has aggravated the tension of water resources, especially the organic compounds contained in some industrial wastewater, which have a great poisonous effect on the human body. At ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J21/06B01J35/02A62D3/10A62D101/28
Inventor 苏慧兰陈建军张荻
Owner SHANGHAI JIAO TONG UNIV
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