A method of preparing copper oxide nano

The present invention discloses a method for preparing nano-copper oxide. Steps of: lignin sulfonate as a template, a solid phase reaction of copper salts and sodium hydroxide, and then removing the template by calcination at different temperatures Nano copper oxide. Lignosulfonate method is sulfite pulping by-product, which is rich in functionality, good diffusibility, the present invention is used as the template lignosulfonate, realized controllable art of nanomaterials, and fully use of waste resources and reduce environmental pollution. Synthesis of solid phase synthesis method CuO nanoparticles simple, low cost, high yield, shorter time and less environmental pollution. Morphology of the copper oxide nanoparticles synthesized polyisocyanate, controlled size, agglomeration is not obvious, widely used in the catalyst, a gas sensor, a magnetic field of superconductors and phase transition.