▎ 摘 要
NOVELTY - Inorganic nano complex catalyst with peroxidase properties, which is prepared by dissolving graphene oxide and ferric oxide-manganese dioxide nanoparticles in phosphate buffered saline, mixing and performing ultrasonic dispersion to obtain nano-complex films of 40-70 nm, is claimed. USE - The nano complex catalyst is useful for catalytic decomposition of tetramethylbenzidine (claimed). ADVANTAGE - The nano complex catalyst has wide application range, and is suitable in sewage treatment.