SELF ASSEMBLING HEAVY METAL ADSORBENT AND PREPARATION METHOD AND USE THEREOF

Disclosed are a self assembling heavy metal adsorbent, and a preparation method and a use thereof. The adsorbent is prepared by a concentrated water-in-oil emulsion process, whereby a polyamine amphiphile having a plurality of active amino hydrogens, used as an emulsion stabilizer, self assemble at an oil-water interface to obtain a concentrated water-in-oil emulsion, with the active amino hydrogens being expressed at the oil-water interface and facing a water phase; then the concentrated water-in-oil emulsion solidifies to form a matrix, and the active amino hydrogens are substituted by acetate radicals, forming aminopolycarboxylate groups which are expressed on a pore surface of the matrix. The adsorbent is useful for treating wastewater or soil containing heavy metals. In comparison to the prior art, the present invention involves expressing the active amino hydrogens at an interface of the concentrated water-in-oil emulsion by means of self assembling of the macromolecular polyamine amphiphile, and during