Abstract
In this research, polyethylene glycol (PEG) and rice hull ash silica were blended to modify chitosan membrane to improve the adsorption capability of copper ion. Scanning electron microscopy (SEM) and water affinity were performed to characterize membranes. Batch adsorption experiments were conducted with various contact time and Cu (II) concentrations to evaluate the adsorption kinetics and thermodynamics. Results show that adsorption fitted to Langmuir model and followed a kinetic model of pseudo-second-order.
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