▎ 摘　　要

NOVELTY - Preparing self-separable Pickering emulsion catalyst involves: adding graphite oxide to tetrahydrofuran solution, then adding 3-aminopropyltrimethoxysilane, ultrasonically treating, refluxing and stirring the mixed solution under the protection of nitrogen atmosphere, filtering, washing several times with absolute ethanol, and vacuum drying to obtain amine-functionalized graphene oxide; and dispersing the amine-functionalized graphene oxide in deionized water, stirring, adding phosphotungstic acid, continuously performing magnetic stirring, then filtering the mixed solution, thoroughly washing the obtained solid with deionized water, and vacuum drying. USE - The method is useful for preparing self-separable Pickering emulsion catalyst used for emulsion catalytic oxidation reaction (claimed). ADVANTAGE - The method enables simple preparation of the self-separable Pickering emulsion catalyst with high catalytic activity. The catalyst solves the problems of large mass transfer resistance and difficulty in recovery in the two-phase catalytic oxidation system using hydrogen peroxide as an oxidizing agent. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for an emulsion catalytic oxidation reaction, which involves subjecting the self-separable Pickering emulsion catalyst, alcohol, hydrogen peroxide aqueous solution, and n-octane to ultrasonic treatment and mechanical stirring to prepare a self-separable Pickering emulsion catalyst system, magnetically stirring, reacting at 100 degrees C for 3.5 hours to obtain a mixed emulsion containing catalytic oxidation products, leaving still to demulsify, and separating the oil phase and portion of aqueous phase.