ADSORPTION OF SILVER (I) FROM AQUEOUS SOLUTION USING CHITOSAN/MONTMORILLONITE COMPOSITE BEADS

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

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Chitosan/montmorillonite Pentair Kreepy Krauly Parts (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag+) from aqueous solution.Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution.The optimum pH value for Ag+ removal was found to be 6-7.The maximum adsorbent dosage for Ag+ removal was 5 g/L.Under above maximum conditions the Ag+ removal was 95.

7%.The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively.The adsorption kinetic agrees well with the pseudo second order model.

The Ag+ desorption of CTS-MMT composite bead was 17.39% at pH=4.SEM/EDX images confirm that after adsorption the Ag+ Molder Top Weight were dispersed onto the composite bead surface.The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag+ from aqueous solution.

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