Abstract
Preparation of Cu(II) template carboxymethyl chitosan (CMC) cross-linked with Bisphenol A Diglycidyl Ether (BADGE) (CMC-BADGE-t) have done. The synthesis has been done through four step i.e. synthesis carboxymethyl chitosan, adsorption Cu(II) on CMC, crosslinking with BADGE, and desorption Cu(II) from adsorbent. The adsorbent was insoluble in acetic acid solution. FTIR spectrum and SEM-EDX analysis showed that the synthesis has been successfully done. Application of the adsorbent for adsorption Cu(II) ions has optimum pH at 6 and contact time of 60 min. Adsorption kinetics followed pseudo-second order equation, and adsorption isotherms followed Langmuir isotherm adsorption. Maximum adsorption capacity of Cu(II) ions on CMC-BADGE-t was 0.276 mmol/g. The relative selectivity factor (αT) value of Cu(II)/Zn(II), Cu(II)/Cd(II) and Cu(II)/Pb(II) were 50.55, 1.48, and 7.85 respectively that were greater than 1. This adsorbent could be used for several times without loss of adsorption capability.
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