Semi-unzipping of chitosan-sodium alginate polyelectrolyte gel for efficient capture of metallic mineral ions from tannery effluent

Chitosan-sodium alginate polyelectrolyte gel with a semi-unzipping system (CS-SA(GTA0.3)) was successfully constructed with the help of unzipper glutaraldehyde (GTA) intruding. Such rational design endowed the composite with a loose and porous structure, thus bearing a good swelling behavior and more functional groups exposition, finally demonstrating an efficient capture ability of commonly metallic mineral ions from tannery effluent.