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A preparation method of conductive titanium dioxide whiskers coated with aluminum-doped zinc oxide on the surface

A technology of conductive titanium dioxide and aluminum-doped zinc oxide, which is applied in the chemical industry, can solve problems such as difficulty in meeting large-scale production and consumption, expensive raw materials, and hazards to the human body, and achieve stable appearance and performance, good conductivity, and low cost. Effect

Active Publication Date: 2020-04-10
SUZHOU KAIYING AUTOMATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The raw materials tin salt and antimony salt used in this method are all heavy metal salts, which are harmful to the human body and pollute the environment, and the raw materials are expensive, so it is difficult to meet the needs of large-scale production and consumption.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: A kind of preparation method of the conductive titanium dioxide whisker of surface coating aluminum-doped zinc oxide, comprises the following steps:

[0023] (1) Weigh an appropriate amount of soluble potassium salt and dissolve it in deionized water to configure a saturated solution of potassium salt. According to the molar ratio of potassium and titanium as 1:1, titanium dioxide nanoparticles are added to the saturated potassium salt solution to obtain a mixed solution. The solution is fully stirred, filtered and dried, and the white solid particles are calcined at 450° C. for 1 hour, boiled in boiling water for 1 hour, and filtered and dried to prepare potassium titanate whiskers.

[0024] (2) The configuration concentration is 10 -3 mol / L HCL solution, add the potassium titanate whiskers and place it in a constant temperature water bath, set the temperature of the water bath at 65°C, pickle for 10 hours, filter, wash, and dry the white solid obtained a...

Embodiment 2

[0027] Embodiment 2: a kind of preparation method of the conductive titanium dioxide whisker of surface coating aluminum-doped zinc oxide, comprises the following steps:

[0028] (1) Weigh an appropriate amount of soluble potassium salt and dissolve it in deionized water to configure a saturated solution of potassium salt. According to the molar ratio of potassium and titanium is 8:1, titanium dioxide nanoparticles are added to the saturated potassium salt solution to obtain a mixed The solution is fully stirred, filtered and dried, and the white solid particles are calcined at 1250°C for 5 hours, boiled in boiling water for 10 hours, and filtered and dried to prepare potassium titanate whiskers.

[0029] (2) Prepare a HCL solution with a concentration of 10mol / L, add the potassium titanate whiskers and place it in a constant temperature water bath, set the temperature of the water bath at 65°C, pickle for 5 hours, filter, wash, and dry. The white solid is calcined at a temper...

Embodiment 3

[0032] Embodiment 3: a kind of preparation method of the conductive titanium dioxide whisker of surface coating aluminum-doped zinc oxide, comprises the following steps:

[0033] (1) Weigh an appropriate amount of soluble potassium salt and dissolve it in deionized water to configure a saturated solution of potassium salt. According to the molar ratio of potassium and titanium is 4:1, titanium dioxide nanoparticles are added to the saturated potassium salt solution to obtain a mixed The solution is fully stirred, filtered and dried, and the white solid particles are calcined at 1050°C for 10 hours, boiled in boiling water for 24 hours, and filtered and dried to prepare potassium titanate whiskers.

[0034] (2) Prepare a HCL solution with a concentration of 1mol / L, add the potassium titanate whiskers and place it in a constant temperature water bath, set the temperature of the water bath at 65°C, pickle for 1 hour, filter, wash, and dry. The white solid is calcined at a tempera...

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Abstract

The invention discloses a preparation method of a conductive titanium dioxide crystal whisker with surface-coated aluminium-doped zinc oxide. The preparation method comprises the following steps of (1) mixing a titanium dioxide and a kalium salt solution, suction filtering, drying, calcining, boiling, re-suction filtering and re-drying to prepare potassium titanate crystal whisker; (2) acid pickling for 1 to 12h in 10<-3> to 10mol / L of an HCl solution, suction filtering, washing, drying and calcining to form titanium dioxide crystal whisker; (3) mixing and stirring the titanium dioxide crystal whisker and deionized water, ultrasonically dispersing to enable titanium dioxide nano-particles to uniformly disperse into the solution, under the condition of constant-temperature stirring, adding a certain proportion of zinc salt and aluminum salt to obtain a mixed solution, controlling pH (Potential of Hydrogen) of the mixed solution to be 7 to 14, after finishing reacting, centrifuging, washing, drying, and treating for 1 to 5h at the high temperature of 400 to 800 DEG C, thus obtaining the conductive titanium dioxide crystal whisker with the surface-coated aluminium-doped zinc oxide. The conductive titanium dioxide crystal whisker with the surface-coated aluminium-doped zinc oxide is high in electric conductivity, light in color, simple in preparation method, low in production cost, wide in material source, environmentally-friendly, high in safety, and suitable for industrialized mass production.

Description

technical field [0001] The invention relates to a method for preparing conductive titanium dioxide whiskers whose surface is coated with aluminum-doped zinc oxide, and belongs to the technical field of chemical industry. Background technique [0002] With the in-depth development of research, there are more and more types of conductive powder. At present, the more mature one is ATO (tin dioxide doped with antimony element) conductive powder. The heavy metal ions tin and antimony contained in textiles are based on compounds. Form exists, and is usually not harmful to humans. But when the human body sweats, the sweat will extract harmful heavy metal ions, which are absorbed by the human body and accumulate in various organs of the human body. If accumulated for a long time, it will cause great harm to the human body, especially for children. more serious. At present, the heavy metal antimony has been included in the ecological textile monitoring project, and it is one of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/16C30B29/62C30B7/14C23C18/12
CPCC23C18/1216C23C18/1245C30B7/14C30B29/16C30B29/62
Inventor 高强贺春旖周凤娟高春霞
Owner SUZHOU KAIYING AUTOMATION EQUIP