Method for preparing nanometer copper oxide catalyst

Abstract

The invention discloses a method for preparing a nanometer copper oxide catalyst. The method comprises the following steps of: mixing soluble copper salt with soluble aluminium salt to prepare a solution with the total concentration of 2-4mol / L according to molar ratio of 2:1 to 4:1 of copper to aluminium; dipping 50-70 percent of NaOH solution to regulate a pH value to 8-10; aging the solution; performing solid-separation separation; and drying the solution to obtain a copper-aluminium hydrotalcite; mixing crylic acid with the water according to a volume ratio of 1:1 to 1:2; adding the copper-aluminium hydrotalcite into the crylic acid solution in a proportion that each gram of copper-aluminium hydrotalcite corresponds to 3-5mol of the crylic acid; stirring mixture for 5-6h at the constant temperature of 60-70 DEG C; aging the mixture for 12-24h; adding ammonium persulfate into the solution to heat at 60-90 DEG C and react for 8-10h; washing the mixture in a deionization mode; drying the mixture at 70-90 DEG C; grinding the mixture and heating the powder to 600-700 DEG C; and adding the powder to sodium hydroxide solution with the concentration of 20-40 percent after the powder is subjected to vacuum forging, so that the method is simple in process.

Description

technical field [0001] The invention relates to a preparation method of a nano copper oxide catalyst, and the material can be used as a catalyst for organic waste water treatment. Background technique [0002] The novel properties presented by nanomaterials and the important application prospects in the field of optoelectronics have made their research attract great attention from scientists. Nano-copper oxide with high dispersion performance, as an important inorganic nano-material, has a wide range of applications in the fields of magnetic materials, light absorption, chemical activity, thermal resistance and catalysts. It can be used as a catalyst and catalyst carrier, as well as an electrode active material, as well as a coating additive, antibacterial material, and sensing material. At present, the preparation methods of nano-copper oxide include: room temperature solid-state reaction method, reactive magnetron sputtering deposition method, sol-gel method, alcohol ther...

AI Technical Summary

Problems solved by technology

At present, the preparation methods of nano-copper oxide include: room temperature solid-state reaction method, reactive magnetron sputtering deposition method, sol-gel method, alcohol thermal method, etc., but the nano-structured copper oxide synthesized in most reports is very easy to agglomerate , uneven distribution and different sizes, disorderly

Although the hydrothermal synthesis of nano-copper oxide using an anodized aluminum template as the substrate is relatively regular, the process is relatively complicated and the yield is low, which is not conducive to large-scale production.