| abstract |
The invention discloses a chitosan-grafted amino acid magnetic composite microsphere. The microsphere is provided with a core-shell structure which takes a chitosan-amino acid complex as a shell, and takes a magnetic material as a core, wherein the complex is obtained by a grafting method of chitosan and amino acid; the amino acid is one of glutamine, glutamic acid and ornithine; in the complex, the amino acid accounts for 5-80 wt%; and the magnetic material is Fe or Fe3O4, and accounts for 10-20% of the total weight of the chitosan and amino acid. The chitosan-grafted amino acid magnetic composite microsphere can be used as a water treatment agent, so that harmful substances (such as dye substances and metal ions) in water can be effectively eliminated, various functions such as good flocculation, metal ion adsorption, deodorization, discoloration and effective reduction of a COD value can be realized. |