▎ 摘　　要

NOVELTY - Preparation of multi-stage structured hydrotalcite and graphene oxide composite, involves formulating graphene oxide into aqueous colloidal solution in reaction vessel, adding aqueous ammonia solution to adjust pH to 10-12, carrying out ultrasonic treatment for 15-30 minutes, then adding mixed solution of divalent metal salt and trivalent metal salt, continuing ultrasound stirring for 1-2 hours, and finally subjecting the mixture to centrifugation, and washing and drying the mixture, to obtain multi-stage structured hydrotalcite and graphene oxide composite. USE - Preparation of multi-stage structured hydrotalcite and graphene oxide composite (claimed). ADVANTAGE - The preparation process is simple and easy to control, and the simple and low-cost equipment is used. The synthesis process is efficient and short, and the energy consumption is low. The product is environmentally-friendly, and the product purity is high.