Modification of chitosan cryogels by pyridoxal phosphate to improve sorption capacity

With the goal of improving the sorption capacity of chitosan and expanding the range of elements that can be sorbed, we modified chitosan cryogels with pyridoxal-5′-phosphate. We studied the behavior of the sorption processes for copper and uranium ions from solutions of their salts on the modified chitosan cryogels. We show that modification by pyridoxal-5′-phosphate leads to an increase in the sorption efficiency for copper and uranyl ions under static and dynamic conditions.