Preparation method of micro-nano cuprous oxide particles with controllable morphology and size

Abstract

The invention discloses a preparation method of micro-nano cuprous oxide particles with controllable morphology and size. The preparation method comprises the following steps: (1) adding a copper sulfate liquid into deionized water, then, adding PVP, mixing with the copper sulfate liquid, then, stirring and performing ultrasonic oscillating to obtain a bright blue liquid; (2) adding a sodium citrate liquid and a sodium carbonate liquid in sequence, and regulating the pH value of the liquid mixture to be greater than 7, wherein the color of the liquid mixture is light blue; (3) standing and then adding the light blue liquid into a glucose liquid, and performing ultrasonic oscillating after mixing so as to uniformly mix the liquid; (4) putting the liquid into a constant-temperature water bath tank to heat to obtain a suspension liquid of cuprous oxide; and (5) centrifuging the suspension liquid by a centrifugal machine after being cleaned with distilled water, and finally drying the particles to obtain the micro-nano cuprous oxide particles. The micro-nano cuprous oxide particles prepared by the preparation method disclosed by the invention have the advantages of environmental friendliness, a controllable particle size, uniform morphology and good dispersion property.

Description

technical field [0001] The invention relates to a method for preparing cuprous oxide particles. Background technique [0002] Cuprous oxide (Cu 2 O) is a p-type semiconductor material, ultrafine Cu 2 O has unique photoelectrochemical properties and catalytic activity, and can be used as anode materials for photoelectric materials, batteries, and photocatalysts. Currently, the preparation of Cu 2 O methods mainly include solid-phase method, electrolysis method, chemical reduction method, high-energy ray irradiation method, hydrothermal method and so on. The industry generally adopts the electrolytic method to prepare cuprous oxide, but this method has some defects in the product dispersion, shape, particle size and other quality indicators, as well as process control and industrialization costs, such as low product purity, narrow application range, groping, etc. The conditions are difficult, it is difficult to effectively control the crystal morphology, and the reproducib...

AI Technical Summary

Problems solved by technology

The industry generally adopts the electrolytic method to prepare cuprous oxide, but this method has some defects in the product dispersion, shape, particle size and other quality indicators, as well as process control and industrialization costs, such as low product purity, narrow application range, groping, etc. Difficult conditions, difficult to achieve effective control of crystal morphology, poor reproducibility, etc.

At the same time, many preparation methods are more cumbersome and complicated

The liquid-phase method has been extensively studied because of low equipment investment and is beneficial to the control of morphology and particle size. However, many synthetic processes use some highly toxic substances such as hydration and sodium sulfite as reducing agents, and the cost of environmental treatment is high.

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