ADSORBENT COMPRISING CELLULOSE DERIVATIVE AND/OR CROSS-LINKED CHITOSAN DERIVATIVE AND ADSORPTION METHOD AND RECOVERY METHOD FOR METAL ION

摘要

PROBLEM TO BE SOLVED: To provide an adsorbent capable of separating and recovering metallic ions, particularly, selenium ions.SOLUTION: Provided is an adsorbent comprising a cellulose derivative and/or a cross-linked chitosan derivative having a structural unit represented by formula (I) [Rdenotes a piperidine derivative or a piperazine derivative; and n denotes the integer of 1 to 3].SELECTED DRAWING: None