Tubular polyaniline supported copper-selenium catalyst as well as preparation method and application thereof

The invention discloses a tubular polyaniline supported copper-selenium catalyst and a preparation method and application thereof in the field of aldoxime dehydration reaction catalysts, and the catalyst is prepared by carrying out photocatalytic oxidation polymerization on aniline in the presence of copper salt and polymer carbon nitride and then dipping in a sodium hydrogen selenide solution. The method is simple to operate and easily available in raw materials. The obtained catalyst can be used for a dehydration reaction of adipaldehyde 1, 6-dioxime, a unique tubular structure is formed by using polyaniline, and selenium and copper substances in the tubular structure cannot be excessively oxidized, so that the dehydration reaction of the adipaldehyde 1, 6-dioxime can be selectively catalyzed, adiponitrile is generated, and the catalyst has the advantages of simple preparation process and low cost. Oxime is not removed to generate adipic dialdehyde or adipic acid is not generated by further oxidation due to