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Method for preparing titanium dioxide/stannic oxide compounded oxide superfine nano particles

A composite oxide and tin dioxide technology, applied in the direction of metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve the problem of large particle size, cumbersome, time-consuming technology, etc. problems, to achieve the effect of easy operation control, low preparation cost and high production efficiency

Active Publication Date: 2016-11-09
抚顺市清原助剂厂有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the technology is time-consuming and cumbersome, and the purity of the prepared product is not high, and the part

Method used

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  • Method for preparing titanium dioxide/stannic oxide compounded oxide superfine nano particles
  • Method for preparing titanium dioxide/stannic oxide compounded oxide superfine nano particles
  • Method for preparing titanium dioxide/stannic oxide compounded oxide superfine nano particles

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Example Embodiment

[0031] Example 1.

[0032] Tetrabutyl titanate, tin tetrachloride and oxalic acid are prepared into an aqueous solution, wherein the molar ratio of tetrabutyl titanate, tin tetrachloride and oxalic acid is 1:1:20. The molar concentration of tetrabutyl titanate is 0.05 mol / L, and the molar concentration of oxalic acid is 1.0 mol / L. The heating temperature is 100 °C, and the stirring speed is 60 rpm. After evaporation to dryness, the cross-linking reaction is carried out. The reaction temperature is 200 °C and the reaction time is 2 hours. After the cross-linking reaction is completed, the high-temperature reaction is continued in a muffle furnace. The high-temperature reaction temperature is 600 °C and the reaction time is 4 h. After natural cooling, the target product is obtained. The particle size of the product is between 10 and 12 nm, the band gap is 2.9 eV, and the yield of the product is 99.7%. Product purity is 99.9%, impurity content: carbon is less than 0.1%.

[0033] ...

Example Embodiment

[0034] Example 2.

[0035] Tetrabutyl titanate, tin tetrachloride and oxalic acid are prepared into an aqueous solution, wherein the molar ratio of tetrabutyl titanate, tin tetrachloride and oxalic acid is 1:1:10. The molar concentration of tetrabutyl titanate is 0.01 mol / L, and the molar concentration of oxalic acid is 0.1 mol / L. The heating temperature is 100 °C, and the stirring speed is 60 rpm. After evaporation to dryness, the cross-linking reaction is carried out. The reaction temperature is 200 °C and the reaction time is 2 hours. After the cross-linking reaction is completed, the high-temperature reaction is continued in a muffle furnace. The high-temperature reaction temperature is 600 °C and the reaction time is 4 h. After natural cooling, the target product is obtained. The product particle size is between 15-20nm, the band gap is 3.0eV, and the product yield is 99.6%. Product purity 99.7%, impurity content: carbon less than 0.3%.

[0036] The prepared ultrafine nan...

Example Embodiment

[0037] Example 3.

[0038] Tetrabutyl titanate, tin tetrachloride and oxalic acid are prepared into an aqueous solution, wherein the molar ratio of tetrabutyl titanate, tin tetrachloride and oxalic acid is 1:1:20. The molar concentration of tetrabutyl titanate is 0.05 mol / L, and the molar concentration of oxalic acid is 1.0 mol / L. The heating temperature is 100 °C, and the stirring speed is 60 rpm. After evaporation to dryness, the cross-linking reaction is carried out. The reaction temperature is 200 °C and the reaction time is 2 hours. After the cross-linking reaction is completed, the high-temperature reaction is continued in a muffle furnace. The high-temperature reaction temperature is 500 °C and the reaction time is 8 h. After natural cooling, the target product is obtained. The product particle size is between 15-18nm, the band gap is 2.95eV, and the product yield is 99.0%. Product purity 99.7%, impurity content: carbon less than 0.3%.

[0039] The prepared ultrafine na...

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Abstract

The invention belongs to the technical field of preparation of functional materials, and relates to a method for preparing titanium dioxide/stannic oxide compounded oxide superfine nano particles. Tetrabutyl titanate and stannic chloride are dissolved in an oxalic acid solution; after water is evaporated to dryness under the condition of heating and stirring, a cross-linking reaction is carried out; then heat treatment is carried out in a muffle furnace, and the titanium dioxide/stannic oxide compounded oxide superfine nano particles are obtained. The process is simple and easy to implement, the purity is high, dispersion is even, the impurity content is low, the product preparation cost is low, and the performance is excellent. The prepared titanium dioxide/stannic oxide compounded oxide superfine nano particles are used as a photocatalytic material, have high catalytic activity and have wide application prospects in the fields of dye wastewater and indoor harmful gas degradation, photocatalytic disinfection and the like.

Description

Technical field [0001] The invention belongs to the technical field of preparation of functional materials, and specifically relates to a preparation method of ultrafine nano particles of titanium dioxide / tin dioxide composite oxide. Background technique [0002] Titanium dioxide is non-toxic, stable in chemical properties, low in cost, and has high practical value. Especially nano-sized titanium dioxide has a lower melting point than ordinary titanium dioxide, has a large specific surface area and surface tension, and has strong magnetic and ultraviolet absorption capabilities, chemical activity and optical properties. And high photocatalytic activity, it is the main material in the field of photocatalysis research. As an important inorganic functional material, tin dioxide not only has excellent flame-retardant electrical conductivity, but also reflects infrared radiation and shading, adsorption, stable chemical properties, high photocatalytic activity, good weather resistance,...

Claims

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Application Information

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IPC IPC(8): B01J23/14B82Y30/00C02F1/30C02F101/38
CPCB01J23/002B01J23/14B01J35/004B82Y30/00C02F1/30C02F2101/34C02F2101/38C02F2101/40C02F2305/10
Inventor 许家胜张杰王琳孙誉东唐克王莉丽邢锦娟张艳萍刘琳钱建华
Owner 抚顺市清原助剂厂有限公司
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