Functionally modified halloysite nanotube gold-loaded core-shell catalyst as well as preparation method and application thereof

The invention discloses a functional modified halloysite nanotube gold-loaded core-shell catalyst as well as a preparation method and application thereof, and relates to the technical field of preparation of nano catalysts. The catalyst comprises a modified halloysite nanotube, and the surface structure of the modified halloysite nanotube is selectively etched through a deep eutectic solvent in advance; the imidazolium-based ionic polymer is modified on the surface of the modified halloysite nanotube through a quaternization reaction and an interface bonding mode; the Au nano-particles are dispersed and anchored in the imidazolium ionic polymer main body net-shaped structure through anion exchange and coordination electrostatic adsorption; the bimetallic mesoporous oxide is used as a shell structure to package and solidify the Au nanoparticles and the polymer main body net-shaped structure, so as to form the core-shell compound. The catalyst provided by the invention has relatively high catalytic reaction act