Preparation method for nanometer zinc stannate

A technology of nano-zinc stannate and zinc stannate, applied in the direction of 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., and achieve simple process , easy-to-operate effect

Active Publication Date: 2014-02-26
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 compou...

Method used

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  • Preparation method for 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 reaction kettle, 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 atmosphe...

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Abstract

Zinc stannate material has excellent performances such as photocatalysis, flame redardation, smoke inhibition and the like, and the invention provides a preparation method for nanometer zinc stannate. According to the method, a cheap stannum compound is taken as the raw material for preparation of zinc stannate with a particle size of 5-100 nm. The obtained zinc stannate is controllable in size and morphology, is widely applicable to polymer materials, and has extremely good effect of retarding flame and inhibiting smoke; the zinc stannate is applicable to exploitation of aldehyde-removing flame-retardant materials; and also zinc stannate is applicable to 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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IPC IPC(8): C01G19/00B01J23/14B82Y30/00
Inventor 洪杰胡必忠刘晓彬
Owner SKSHU PAINT
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