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Preparation method of nanometer zinc stannate

A technology of nano-zinc stannate and zinc salt, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of high price, uneven particle size, lack of application examples of zinc stannate, etc. Easy to operate effect

Active Publication Date: 2016-08-17
SKSHU PAINT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Sodium stannate is used as raw material, which is relatively expensive and difficult to popularize in application; domestic patent No. 200510017855.6 (2005) can use cheap tetravalent tin compound as raw material to produce zinc stannate with a particle size of 2-100nm
But the particle size that this method makes is inhomogeneous, and the concrete application example that lacks zinc stannate

Method used

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  • Preparation method of nanometer zinc stannate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Example 1: Dissolve 1.0g of tin oxide and 0.6g of zinc chloride in 50mL of 0.5moL / L hydrochloric acid solution, add distilled water to dilute to 120mL, then add 20mL of 15% aqueous hydrogen peroxide solution, and stir 0.5moL / L ammonia solution was added dropwise to adjust the pH value to about 8. After the dropwise addition, the temperature was raised to 60°C and the temperature was controlled for 5 hours to react. The obtained white precipitate was filtered and washed, and the precipitate was dispersed in 40mL of ethanol And 0.1 g of sodium dodecylsulfonate was added. Finally, pour the above solution into a polytetrafluoroethylene high-pressure reaction kettle, carry out solvothermal reaction at a temperature of 200°C, wash the precipitate repeatedly with deionized water, filter it with suction, dry it at a temperature of 100°C, and then empty it at 600°C The zinc stannate with particle size of 25nm was obtained by calcining under atmosphere.

[0029] The photocatalyt...

Embodiment 2

[0032] Embodiment 2: 1.0g tin tetrachloride and 0.8g zinc chloride are dissolved in the 0.5mol / L hydrochloric acid solution of 40mL, add distilled water and dilute to 100mL, then add the hydrogen peroxide aqueous solution that the content of 1mL is 8.0%, in While stirring, add 0.5 mol / L sodium hydroxide solution dropwise to adjust the pH value to about 9.0. After the dropwise addition, raise the temperature to 50°C and control the temperature for 6 hours. The white precipitate obtained is filtered and washed, and the precipitate is dispersed into 40 mL of acetone, and added 0.1 g of oleic acid. Finally, pour the above solution into a polytetrafluoroethylene high-pressure reactor, carry out solvothermal reaction at a temperature of 250°C, wash the precipitate repeatedly with deionized water, filter it with suction, dry it at a temperature of 100°C, and then empty it at 800°C The zinc stannate with a particle diameter of 30 nm was obtained by calcining under the atmosphere.

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Abstract

The zinc stannate material has excellent properties such as photocatalysis, flame retardancy, and smoke suppression. The invention provides a preparation method of nanometer zinc stannate. The method uses cheap tin compounds as raw materials to prepare 5-100nm zinc stannate. The obtained zinc stannate has a controllable particle size and shape, and can be widely used in polymer materials, and has good flame-retardant and smoke-suppressing effects; it can be used in the development of aldehyde removal and flame-retardant coatings; in addition, it can Used in lubricating oil additives and gas sensitive materials.

Description

technical field [0001] The invention relates to a photocatalytic powder applicable to environmental purification and a production method thereof. The powder can be used to remove odor, remove harmful substances or pollutants in the air, such as benzene, formaldehyde and other gaseous substances; the powder can be used at the same time For drainage or water purification, remove harmful substances in water and eliminate harmful bacteria. The powder also has the effect of flame retardancy. The invention specifically relates to a preparation method and application of nanometer zinc stannate. Background technique [0002] Zinc stannate is a new type of flame retardant and smoke suppressant developed in the late 1980s. It has a synergistic effect with halogen-containing high polymers and halogen-free high polymers containing halogen flame retardants. These high polymers include PVC, unsaturated polyester, alkyd resin plastics, chlorine-containing thermoplastics, etc. Compared w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G19/00B01J23/14B82Y30/00
Inventor 洪杰胡必忠刘晓彬
Owner SKSHU PAINT