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Method for synthesizing titanium dioxide/ titanium disulfide composite material by using one-step vulcanization method

A technology of titanium dioxide and composite materials, applied in the direction of titanium dioxide, titanium oxide/hydroxide, titanium sulfide, etc., can solve the problems of high experimental conditions, impure products, low yield, etc., and achieve high material purity and uniform shape , The effect of simple preparation method

Inactive Publication Date: 2017-11-10
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction process is difficult to control, and the requirements for experimental conditions are relatively high. The resulting product is impure and the yield is relatively low.

Method used

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  • Method for synthesizing titanium dioxide/ titanium disulfide composite material by using one-step vulcanization method
  • Method for synthesizing titanium dioxide/ titanium disulfide composite material by using one-step vulcanization method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1) Weigh 2ml of butyl titanate and add it dropwise to 8ml of ethanol solution under the action of magnetic stirring to form a homogeneous mixture A, then add 1ml of ethanol to 40ml of deionized water under the action of magnetic stirring to form a uniform mixed solution b.

[0044] 2) The mixed solution A is added dropwise into the mixed solution B under the action of stirring, and then ultrasonicated for 0.5 h to obtain a transparent solution C. In addition, 0.1 mol / L HCl was added to adjust the pH value to 6 to obtain solution D.

[0045] 3) The solution D is added into the polytetrafluoroethylene lining, the filling ratio is controlled at 40%, the reaction temperature is controlled at 160°C, and the reaction time is controlled at 12h.

[0046] 4) After the reaction is completed, centrifuge and wash 3 times with deionized water and ethanol respectively. After vacuum drying at 80°C for 6 h, TiO was obtained by grinding 2 Precursor.

[0047] 5) Weigh a certain amoun...

Embodiment 2

[0052] 1) Weigh 4ml of butyl titanate and add it dropwise to 9ml of ethanol solution under the action of magnetic stirring to form a homogeneous mixture A, then add 2ml of ethanol to 40ml of deionized water under the action of magnetic stirring to form a uniform mixed solution b.

[0053] 2) The mixed solution A is added dropwise into the mixed solution B under the action of stirring, and then ultrasonicated for 1.5 hours to obtain a transparent solution C. In addition, 0.1 mol / L HCl was added to adjust the pH value to 6 to obtain solution D.

[0054] 3) The solution D is added to the polytetrafluoroethylene lining, the filling ratio is controlled at 50%, the reaction temperature is controlled at 180°C, and the reaction time is controlled at 16h.

[0055] 4) After the reaction is completed, centrifuge and wash 5 times with deionized water and ethanol respectively. After vacuum drying at 80 °C for 8 h, TiO was obtained by grinding 2 Precursor.

[0056] 5) Weigh a certain am...

Embodiment 3

[0062] 1) Weigh 6ml of butyl titanate and add it dropwise to 10ml of ethanol solution under the action of magnetic stirring to form a homogeneous mixture A, then add 3ml of ethanol to 40ml of deionized water under the action of magnetic stirring to form a uniform mixed solution b.

[0063] 2) The mixed solution A is added dropwise into the mixed solution B under the action of stirring, and then the transparent solution C is obtained by ultrasonication for 2 hours. In addition, 0.1 mol / L HCl was added to adjust the pH value to 6 to obtain solution D.

[0064] 3) The solution D is added into the polytetrafluoroethylene lining, the filling ratio is controlled at 60%, the reaction temperature is controlled at 200° C., and the reaction time is controlled at 20 h.

[0065] 4) After the reaction is completed, centrifuge and wash 6 times with deionized water and ethanol respectively. After vacuum drying at 80°C for 10 h, TiO was obtained by grinding 2 Precursor.

[0066] 5) Weigh ...

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Abstract

The invention discloses a method for synthesizing a titanium dioxide (TiO2) / titanium disulfide (TiS2) composite material by using an one-step vulcanization method. The method for synthesizing the TiO2 / TiS2 composite material comprises the steps of adding butyl titanate dropwise into an ethanol solution to form a mixed solution A, adding ethanol into deionized water to form a mixed solution B, adding the mixed solution A dropwise to the mixed solution B, and sonicating the obtained mixture with ultrasonic waves to obtain a transparent solution C; adjusting the pH of the solution C to 6, and obtaining a solution D; adding the solution D into a inner container made of polytetrafluoroethylene, and controlling the filling ratio for a reaction; after the reaction is completed, washing, drying, and grinding so as to obtain a TiO2 precursor; placing the TiO2 precursor and thioacetamide in a porcelain boat, and covering the porcelain boat with a cover; putting the whole porcelain boat with the cover into a low-temperature tube furnace for a sintering reaction; after the temperature drops to a room temperature, taking out the sample of TiO2 precursor and thioacetamide, grinding the sample into a powder sample, and obtaining the TiO2 / TiS2 composite material. The method for synthesizing the TiO2 / TiS2 composite material has the advantages of being simple and short in period, the block size of the prepared material is ten to several hundred nanometers, and the prepared material has the advantages of being high in purity, high in crystallinity and even in morphology.

Description

technical field [0001] The invention relates to the field of composite material preparation, in particular to a method for synthesizing titanium dioxide and titanium disulfide composite materials by a one-step vulcanization method. Background technique [0002] TiO 2 It is a semiconductor material with a wide band gap because of its excellent chemical resistance, heat resistance, weather resistance and high stability, especially TiO 2 The advantages of good photocatalytic properties, stable properties, and low price of nanomaterials make them widely used in the fields of photocatalysis, photolysis of water, photoelectric conversion, and sensors. TiO 2 Materials usually have three crystal forms: brookite, anatase and rutile, and different crystal forms have different chemical activities and uses. With the continuous development of nanomaterials, the advantages of smaller size and larger specific surface area become more and more important. Currently, TiO 2 There are more...

Claims

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Application Information

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IPC IPC(8): C01G23/053C01G23/08C01G23/00B82Y30/00B82Y40/00B01J27/04H01M4/36H01M4/48H01M4/58
CPCH01M4/362H01M4/48H01M4/5815B82Y30/00B82Y40/00C01G23/007C01G23/053C01G23/08B01J27/04C01P2004/03C01P2002/72C01P2006/80C01P2004/64C01P2004/62B01J35/40B01J35/39Y02E60/10
Inventor 殷立雄程如亮蔺英张浩繁黄剑锋张峰房佳萌张浩
Owner SHAANXI UNIV OF SCI & TECH
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