1 results about "Guanidine Phosphate" patented technology

This invention discloses a three-dimensional graphene oxide composite foam material with both antibacterial and high uranium selectivity, and its preparation method, belonging to the fields of environmental functional materials and seawater uranium extraction technology. Using graphene oxide (GO) as the matrix, this invention introduces superhydrophilic polyethyleneimine (PEI), highly uranium-selective poly(amine oxime) (PAO), and guanidine phosphate polymer (PGdn) with both antibacterial and uranium coordination capabilities, and prepares the GO-PEI-PAO-PGdn (GPP-PGdn) composite foam material through a one-step covalent cross-linking method. The material prepared by this invention has a three-dimensional interconnected porous structure, superhydrophilic properties, and excellent uranium selectivity. The uranium partition coefficient Kd value in natural seawater reaches as high as 18250 mg / L, and the uranium removal rate reaches 87.65%, achieving highly selective uranium enrichment. Simultaneously, it has significant antibacterial effects against Escherichia coli and Staphylococcus aureus, effectively solving the problem of biofouling during seawater uranium extraction. The material prepared by this invention has a mild and controllable process that can be scaled up and can be widely used in fields such as trace uranium enrichment and uranium-containing radioactive wastewater treatment. It also has excellent adsorption performance, cycle stability and environmental resistance.