Method for preparing superfine cuprous oxide powder

Abstract

The invention relates to a method for preparing superfine cuprous oxide powder. The method comprises the following steps of: (1) adding a reducing agent to dimethyl sulfoxide organic liquid containing cupric ions, and carrying out reaction for 0.5-8 hours at the temperature of 15-90 DEG C; and (2) centrifuging, washing and drying obtained turbid liquid, thereby obtaining the cuprous oxide powder. The method has the beneficial effects that prepared cuprous oxide particles have the particle diameter being smaller than 20nm and have good secondary dispersity in various oil agents; the preparation cost is low, the energy source consumption is low, no hazardous wastes are produced, and thus, the requirements of modern production on green production, environment-friendliness and energy saving are met; and the process is simple, the operation is simple and convenient, the reactions are mild, the reaction time is short, and the efficiency is high, and therefore the method is applicable to large-scale production.

Description

technical field [0001] The invention relates to the field of production of inorganic chemical raw materials, in particular to a method for preparing superfine cuprous oxide powder by a reduction method. Background technique [0002] Cuprous oxide (Cu 2 O) is a p-type semiconductor material with a band gap of about 2.2eV, which is higher than that of TiO 2 3.2eV is much lower, has typical optical and magnetic properties, and has potential application prospects in magnetic storage devices, etc. As an inorganic chemical raw material, cuprous oxide powder is widely used in pigments, ships, antibacterial agents, coatings, and electronic products. In addition, it is also widely used in superconductors, solar cells, catalysts, and negative electrode materials for lithium-ion batteries. At the same time, cuprous oxide also has potential application prospects in photocatalytic degradation of organic pollutants, so it has received strong attention from environmental researchers in ...

AI Technical Summary

Problems solved by technology

The electrolysis method uses metal copper as the anode and electrolyzes it in a solution containing copper ions. The particle size of the product obtained by this method is relatively large, and the power consumption is high, the production efficiency is low, and the production environment is poor.

The sulfur dioxide reduction method uses pyrophosphate as a catalyst and sulfur dioxide as a reducing agent to prepare cuprous oxide. This method consumes a lot of reagents, high production costs, high requirements for equipment sealing, and poor operating environment.

The above-mentioned methods either need to add other organic auxiliary agents, or the reaction conditions are relatively harsh, and the prepared cuprous oxide particles are all relatively large (greater than 20nm)

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