SYNTHESIS OF FIBROUS COMPOSITE ADSORBENT FOR SELECTIVE REMOVAL OF CAESIUM FROM CONTAMINATED WATERS

Abstract

New composite adsorbent based on potassium nickel hexacyanoferrate in situ deposited on the modified polyacrylonitrile fibers’ surface is synthesized. Data of scanning electron microscope, infrared and X-ray diffraction investigations confirmed the formation of the hexacyanoferrate layer. The synthesized composite fibers were tested for adsorption of caesium ions from alkaline solutions. The composite adsorbent has demonstrated a rapid adsorption process and selectivity in Cs ion removal from model solutions with high concentration of competitive sodium ions.