Preparation method of titanium dioxide classification balls containing three crystalline phases

Abstract

The invention discloses a preparation method of titanium dioxide classification balls containing three crystalline phases. The method comprises the following steps that: 0.25g-0.3g of analytically-pure dodecyltrimethylammonium bromide is added into a mixed solvent containing 30ml of absolute ethyl alcohol and 30ml of deionized water to be mixed uniformly, 0.4ml-0.8ml of analytically-pure tartaric acid is added then, and all the materials are stirred and mixed uniformly at a normal temperature to obtain a mixed solution; 1ml-2ml of analytically-pure tetrabutyl orthotitanate is dropwise added into the mixed solution and is continually stirred till white flocs disappear; the generated solution is transferred into a high-temperature reaction kettle of 100ml; the reaction kettle is put into a constant-temperature drying oven to be subjected to heat insulation at a temperature of 120-150 DEG C for 24 hours to 48 hours, and then is cooled to a room temperature to obtain white precipitates; and the white precipitates are washed repeatedly for 2-3 times by deionized water or absolute ethyl alcohol, and then are dried in the drying oven at a temperature of 60-80 DEG C for 10 hours to12 hours. According to the invention, the cost is low, the technical control process is simple, and the large-scale synthesis is easy.

Description

technical field [0001] The invention relates to a preparation method of a titanium dioxide graded ball containing three crystal phases. Background technique [0002] As an important functional oxide semiconductor material, titanium dioxide has been favored by industry and academia for its wide application in the fields of environment and energy. In order to adapt to the application of titanium dioxide in different occasions, various studies such as controlling the crystal phase of titanium dioxide and controlling the microscopic morphology of titanium dioxide have attracted widespread attention from the academic community. [0003] In the research involving the control of titanium dioxide crystal phase, the synthesis of pure rutile titanium dioxide, pure anatase titanium dioxide, pure brookite titanium dioxide and the above-mentioned mixed phase and three phase titanium dioxide have been reported. In the research of exploring the microscopic morphology of titanium dioxide, ...

AI Technical Summary

Problems solved by technology

Although some progress has been made in the synthesis of titania in terms of crystal phase control and microstructure modulation, the synthesis of three crystal phases and hierarchical spherical micromorphology is rarely reported.

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