▎ 摘　　要

NOVELTY - Photocatalyst comprises a graphitic-carbon nitride/graphene oxide (GO)/magnetic particle composite material. USE - The photocatalyst is useful for degrading organic dyes. ADVANTAGE - The photocatalyst has excellent catalytic degradation efficiency for organic dyes under UV light, and adopts a simple to operate and environmentally friendly preparation method. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the photocatalyst, involving (i) mixing graphitic carbon nitride, graphene oxide and magnetic particles, and ultrasonically dispersing, (ii) adding a crosslinking agent to the dispersed solution, and heating and stirring to obtain a mixed solution, (iii) dispersing the mixed solution in the continuous phase, receiving with a receiver, curing, washing and drying to obtain a composite material, and (iv) calcining the composite material to obtain the photocatalyst.