Preparation method of hexagon snow shaped WO3 nanometer disc

Abstract

Disclosed is a preparation method of a hexagon snow shaped WO3 nanometer disc. Firstly, tungsten powder is added into hydrogen peroxide solution, after the reaction is finished, filtrate in a beaker is collected and labeled as solution A. Deionized water is added into the solution A and the solution A is diluted to obtain solution B; the solution B is poured into a microwave hydrothermal reactor,and then is put into a MDS-8 type temperature-pressure double control microwave hydrothermal reaction machine. The temperature control mode is selected for reaction, after the reaction is finished, the solution B is cooled to the room temperature naturally. The hydrothermal reactor is opened, after the product is centrifugated, supernatant is removed and precipitate is collected, then the productis rinsed a plurality of times by using deionized water and absolute ethanol or deionized water and isopropanol, at last the product is soaked in absolute ethanol, and is dried in an electrothermal blowing dry box, then the snow shaped WO3 nanometer disc is obtained. The reaction of the invention is finished by one step, the subsequent treatment is not needed, the preparation period is short, andthe process equipment is simple, the cost is low, the repeatability is high, the reaction temperature is low, the energy consumption is low and the production cost is saved.

Description

technical field [0001] The present invention relates to a WO 3 The preparation method of nano disc, specifically relates to a kind of hexagonal snowflake-shaped WO 3 Preparation methods of nanodisks. Background technique [0002] As a transition metal oxide semiconductor material, nano-WO 3 Crystals are currently widely studied due to their diverse crystal morphologies and interesting physicochemical properties. Especially because of its electrochromic, thermochromic, aerochromic, and photocatalytic effects, it has been widely used in many fields, such as smart window materials, solar cell devices, gas-sensitive detectors, and photocatalysts. [0003] So far, under special growth conditions, WO has been successfully synthesized 3 Nanobelts, nanowires, nanospheres, nanocubes, nanoflowers, nanoshells, nanodisks and many other special shapes, but so far, the hexagonal snowflake-like WO 3 The preparation of nanodisks has not been reported yet. [0004] So far, traditional ...

AI Technical Summary

Problems solved by technology

In the above methods, most of the equipment is expensive, the process is complicated, resource-consuming or the shape is difficult to control accurately, and the obtained crystal effect is not ideal

However, the emerging preparation methods that have risen in China in the past ten years, such as hydrothermal and solvothermal methods, have given WO 3 The preparation of nanocrystals has opened up a new path, but it also has the disadvantages of long preparation period and low repeatability

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