Method for preparing nanometer composite with chrysanthemum structure

A nano-composite material, chrysanthemum technology, applied in chemical instruments and methods, textile industry wastewater treatment, titanium oxide/hydroxide, etc., can solve the problems of poor photocatalytic effect and high cost of functional materials, and achieve low energy consumption and preparation The process is simple and easy, and the effect of visible light absorption effect is good

Inactive Publication Date: 2014-01-22
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a preparation method and application of an adsorption-photocatalytic degradation type titanium dioxide / molybdenum disulfide nanocomposite material with low cost and simple preparation, so as to overcome the defects of high cost and poor photocatalytic effect of existing functional materials, Lay a technical foundation for the development and application of low-cost, high-performance environmental purification materials

Method used

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  • Method for preparing nanometer composite with chrysanthemum structure
  • Method for preparing nanometer composite with chrysanthemum structure
  • Method for preparing nanometer composite with chrysanthemum structure

Examples

Experimental program
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Effect test

Embodiment 1

[0028] Add 15 mg of titanium dioxide nanosheets into 60 ml of deionized water and ultrasonically disperse to obtain a titanium dioxide dispersion; under magnetic stirring conditions, add 90 mg of sodium molybdate and 180 mg of thioacetamide to the above titanium dioxide dispersion to obtain a mixed solution A; After the dropwise addition, the mixed solution continued to stir for 30 minutes and then transferred to a polytetrafluoroethylene inner container, and the inner container was sealed in a stainless steel hydrothermal reaction kettle, and reacted for 20 h at 200 ° C. After the reaction, the reaction kettle Naturally cooled to room temperature, the obtained product was separated by centrifugation, washed with deionized water and absolute ethanol, and dried in vacuum.

Embodiment 2

[0030] Add 10 mg of titanium dioxide nanosheets into 60 ml of deionized water, and ultrasonically disperse to obtain a titanium dioxide dispersion; under magnetic stirring conditions, add 90 mg of sodium molybdate and 180 mg of thioacetamide to the above titanium dioxide dispersion to obtain a mixed solution A; After the dropwise addition, the mixed solution continued to stir for 30 minutes and then transferred to a polytetrafluoroethylene inner container, and the inner container was sealed in a stainless steel hydrothermal reaction kettle, and reacted for 20 h at 200 ° C. After the reaction, the reaction kettle Naturally cooled to room temperature, the obtained product was separated by centrifugation, washed with deionized water and absolute ethanol, and dried in vacuum.

Embodiment 3

[0032] Add 15 mg of titanium dioxide nanosheets into 60 ml of deionized water and ultrasonically disperse to obtain a titanium dioxide dispersion. Under magnetic stirring conditions, 90 mg of sodium molybdate and 180 mg of thioacetamide were added to the above titanium dioxide dispersion to obtain a mixed solution A. After the dropwise addition, the mixed solution continued to stir for 30 minutes and then transferred to a polytetrafluoroethylene liner, and the liner was sealed in a stainless steel hydrothermal reactor, and reacted for 24 h at 180 ° C. After the reaction, the reactor was naturally cooled After reaching room temperature, the obtained product was separated by centrifugation, washed with deionized water and absolute ethanol, and dried in vacuum.

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Abstract

The invention relates to a nanometer composite, and particularly relates to a method for preparing a nanometer composite with a chrysanthemum structure. The method comprises the steps of adding titanium dioxide nanosheets into deionized water, carrying out ultrasonic dispersion, and obtaining a titanium dioxide dispersing liquid; under the condition of magnetic stirring, adding sodium molybdate and thioacetamide into the titanium dioxide dispersing liquid, and obtaining a mixed solution A; after finishing adding, stirring the mixed solution continuously, then transferring the mixed solution into a Teflon inner container, sealing the inner container in a stainless steel hydrothermal reaction kettle for hydrothermal reaction, after finishing the hydrothermal reaction, naturally cooling the reaction kettle to room temperature, centrifuging the obtained product, washing, vacuum drying and obtaining the composite. The method has the advantages that the source of raw materials is wide, and the method is simple and practicable and has low cost. The prepared titanium dioxide or molybdenum disulfide nanometer composite not only has good capacity in absorbing organic contaminants, but also has a good visible light photocatalytic degradation effect to organic contaminants.

Description

technical field [0001] The present invention relates to a nanocomposite material, in particular to a method for preparing a chrysanthemum-like structure titanium dioxide / molybdenum disulfide nanocomposite material, more specifically to a method for preparing an adsorption-photocatalytic degradation type chrysanthemum-like structure titanium dioxide / molybdenum disulfide by a hydrothermal method The invention relates to a molybdenum nanocomposite material method, which belongs to the fields of composite material, photocatalytic technology and water pollution control. Background technique [0002] Environmental problems are becoming more and more serious, water pollution has seriously affected people's quality of life, and has also had a greater impact on the implementation of my country's sustainable development strategy; in recent years, the use of photocatalytic technology to eliminate and degrade pollutants is the current water environment governance One of the most acti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J27/051C01G23/053C02F1/28C02F1/30C02F103/30
Inventor 杨小飞李扬蒋珍陈康敏秦洁玲唐华李荣
Owner JIANGSU UNIV
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