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

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...

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