▎ 摘　　要

NOVELTY - Designing and preparing MIL-53 (Fe) based catalyst comprises based on porous regular octahedral crystal material MIL-53(Fe) adopting in-situ pyrolysis to grow magnetic gamma -ferric oxide ultrafine nanoparticles in the MIL-53(Fe) pore structure to form micro-heterojunction to obtain more stable structure, increasing the efficiency of light utilization, supporting on the layered graphene oxide by one-step hydrothermal method to increase the efficiency of photo-generated carrier separation and the photocatalytic activity of the catalyst, where due to the high nuclear density on the graphene surface, the steric hindrance increases, resulting in changes in the morphology and structure of MIL-53(Fe) to form a spherical structure, the prepared catalyst is represented by gamma -ferric oxide-MIL-53(Fe)-graphene oxide. USE - The catalyst is useful for degradation of antibiotic in wastewater (claimed). DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for use method of catalyst for degradation of antibiotic in wastewater comprising adding catalyst in to the antibiotic solution, continuously stirring, absorbing in dark for 30 minutes, irradiating under visible light, and measuring concentration of antibiotics in the reaction solution after every 15 minutes.