Solid super acid-ionic liquid composite solid supported catalyst and preparation method thereof

The invention relates to a preparation method and application of a mesoporous solid super acid-ionic liquid composite solid supported catalyst, belonging to the field of a preparation technology and application of the catalyst. The preparation method comprises the following steps of: preparing a mesoporous material doped with different contents of zirconium metal, immobilizing imidazolium-based ionic liquid on the surface of the mesoporous material by using a chemical bonding method, and using the ionic liquid for exchanging ions with H2SO4 to prepare the mesoporous solid super acid-ionic liquid composite solid supported catalyst. The catalyst has the advantages that the catalyst has high activity and selectivity on esterification reaction of acetic acid and ethanol at a lower temperature, a product is easy to separate and can be recycled, and the like.