Mechano-chemical method for preparing metal-organic framework material with high specific surface area

The invention belongs to the technical field of upgraded chemical recovery of polyethylene glycol terephthalate (PET), and relates to a mechanochemical method for preparing a metal-organic framework material with a high specific surface area. The invention relates to a method for preparing MOF (Metal Organic Framework) with a high specific surface area by degrading waste PET (Polyethylene Terephthalate) into terephthalic acid salt and ethylene glycol under the mechanochemical action in a strong alkali environment and then coordinating the terephthalic acid salt with metal ions under the mechanochemical action assisted by a trace amount of organic solvent. The trace organic solvent not only helps to improve the crystal form of MOF, but also can be used as a template. And finally, washing and drying to obtain the MOF with high specific surface area. According to the method, the waste PET is converted into the MOF with the high specific surface area by adopting a two-step ball milling method assisted by the trac