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Preparation process of magnesium alloy supported nanometer TiO2 photocatalyst film

A technology of photocatalytic thin film and magnesium alloy, which is applied in the direction of titanium dioxide, liquid chemical plating, metal material coating technology, etc., can solve the problems of poor corrosion resistance of magnesium and magnesium alloy, reduce the composite probability, improve the application range, The effect of excellent photocatalytic sterilization performance

Inactive Publication Date: 2008-06-11
ZHENGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the poor corrosion resistance of magnesium and magnesium alloys, especially in the corrosive environment containing chloride ions, the physiological environment of the human body is a corrosive environment that is harsh on hard tissue implant materials.

Method used

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  • Preparation process of magnesium alloy supported nanometer TiO2 photocatalyst film
  • Preparation process of magnesium alloy supported nanometer TiO2 photocatalyst film

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Embodiment 1

[0029] Magnesium alloy loaded nano TiO of the present invention 2 The raw materials used in the preparation method of the photocatalytic thin film are: absolute ethanol (analytical pure AR grade), tetrabutyl titanate (analytical pure AR grade), diethanolamine (analytical pure AR grade), deionized water, methylene blue (analytical pure AR grade). Pure AR grade), magnesium alloy. Its preparation method is as follows: (1) preparation of sol; the volume ratio of each raw material is as follows, tetrabutyl titanate: absolute ethanol: deionized water: diethanolamine = 15:74:11:8; first add the above volume to the beaker under the condition of stirring, add tetrabutyl titanate and continue stirring for 1 hour; add diethanolamine and continue stirring for 20 minutes; then add deionized water dropwise and continue stirring for 20 minutes; according to the amount of 1 gram per 500ml of sol Add TiO 2 Nano-powder, pH is 6.5, ultrasonically dispersed for 0.5 hours, and aged for 20 hours;...

Embodiment 2

[0031] Magnesium alloy loaded nano TiO of the present invention 2 The raw materials used in the preparation method of the photocatalytic thin film are: absolute ethanol (analytical pure AR grade), tetrabutyl titanate (analytical pure AR grade), diethanolamine (analytical pure AR grade), deionized water, methylene blue (analytical pure AR grade). Pure AR grade), magnesium alloy. The specific preparation method is as follows: (1) prepare sol; the volume ratio of each raw material is as follows, tetrabutyl titanate: absolute ethanol: deionized water: diethanolamine=4:90:6:5; first add the above-mentioned volume in the beaker Absolute ethanol; in the case of stirring, add tetrabutyl titanate and continue stirring for 1 hour; add diethanolamine and continue stirring for half an hour; then add deionized water dropwise and continue stirring for half an hour; Amount of TiO added 2Nano-powder, ultrasonically dispersed for 1 hour, aged for 40 hours; (2) pre-preparation treatment a, th...

Embodiment 3

[0033] Magnesium alloy loaded nano TiO of the present invention 2 The raw materials used in the preparation method of the photocatalytic thin film are: absolute ethanol (analytical pure AR grade), tetrabutyl titanate (analytical pure AR grade), diethanolamine (analytical pure AR grade), deionized water, methylene blue (analytical pure AR grade). Pure AR grade), magnesium alloy. The specific preparation method is as follows: (1) preparation of sol; the volume ratio of each raw material is as follows, tetrabutyl titanate: absolute ethanol: deionized water: diethanolamine=21:77:2:1; first add the above-mentioned volume in the beaker Absolute ethanol; in the case of stirring, add tetrabutyl titanate and continue stirring for 1 hour; add diethanolamine and continue stirring for half an hour; then add deionized water dropwise and continue stirring for half an hour; Amount of TiO added 2 Nano-powder, ultrasonically dispersed for 1 hour, aged for 60 hours; (2) pre-preparation treatm...

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Abstract

The preparation process of magnesium alloy supported nanometer TiO2 photocatalyst film includes the following steps: 1. preparing sol with the materials including tetrabutyl titanate, anhydrous ethanol, deionized water and diethanolamine in the volume ratio of 4-21 to 69-97 to 1-17 to 1-8 through stepped adding while stirring, adding nanometer TiO2 powder, ultrasonic dispersing and ageing for 10-60 hr; 2. treating magnesium alloy through polishing with emery paper to mirror, alkali washing in solution of NaOH in 40-55g / L and Na3PO4 .12H2O in 8-12g / L at 55-65 deg.c for 8-10 min, acid washing in solution of Cr2O3 in 125g / L and HNO3 in 60-77ml / L at room temperature for 40-55 sec, activating in HF solution of 10-17 vol% at room temperature for 10-15 min, ultrasonic washing in mixed solution of anhydrous ethanol and acetone in the equal volume ratio for 20-30 min and drying; 3. preparing film; and 4. heat treatment.

Description

technical field [0001] The invention relates to a magnesium alloy loaded nano TiO 2 Preparation method of photocatalytic thin film. Background technique [0002] Magnesium alloy is the lightest metal engineering material. Magnesium alloy is widely used in aviation, automobile and electronic industries, with an annual growth rate of 20%. Magnesium alloy's light weight, good thermal conductivity, good electromagnetic shielding performance, low cost, a large number of applications and the shell of electronic communication products, especially notebook computers, mobile phones, camera equipment, digital audio-visual products. The outstanding features of this type of product are: many opportunities to contact with people, easy to carry, breed and infect various bacteria and viruses, and are closely related to the health of users. Magnesium alloy is also a promising biomedical material. As a hard tissue implant material, magnesium has outstanding advantages compared with various...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C30/00C23C18/04B05D3/00C23F3/02C01G23/053
Inventor 关绍康胡俊华任晨星赵红亮王利国李庆奎朱世杰
Owner ZHENGZHOU UNIV
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