Copper oxide nano material and preparation method thereof

The invention relates to the technical field of nano materials, in particular to a copper oxide nano material, which is prepared from the following raw materials in parts by weight: 10-40 parts of copper powder, 50-80 parts of absolute ethyl alcohol, 20-50 parts of nitric acid, 15-30 parts of caustic soda solution and 15-30 parts of ammonium nitrate solution. The invention relates to a preparationmethod of a copper oxide nano material, which comprises the following steps: S1, preparing a copper reaction solution: adding nitric acid into an acid-resistant reactor with stirring, slowly adding copper powder while stirring to react, heating the solution after the reaction is completed, expelling nitric oxide gas, and filtering the reacted liquid impurities to obtain the copper reaction solution; and S2, performing high-pressure spraying: feeding the copper reaction liquid and the caustic soda solution in the step S1 into an ultrasonic stirring device through a mixed liquid high-pressure spraying device. The ultra