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Monosodium Glutamate Functionalized Chitosan Beads for Adsorption of Precious Cerium Ion

Monosodium glutamate functionalized chitosan (MSGC) beads were synthesized and used as an adsorbent for recovering precious cerium ion from aqueous solutions. Several parameters which can affect adsorption efficiency such as effect of pH and adsorbent dosage have been investigated. The optimum pH for Ce (III) adsorption was 4. The rate of Ce (III) uptake was fast as the time to reach equilibrium was less than 10 min. Based on the applied kinetic model, Ce (III) adsorption onto MSGC fitted well with pseudo-second-order model. The maximum adsorption capacity recorded from the Langmuir isotherm model was 369.0 mg g-1 at 300 K.