| Summary: | The adsorption of Pb(II) ion from wastewater by coconut frond powder was evaluated in the batch adsorption process. Characteristic of the coconut frond powder (CFP) was determined by performing a pHzpc analysis and also infra-red spectroscopy analysis for the investigation of the functional group on CFP surface. The batch adsorption study was carried out using five parameters including the effect of pH, the effect of adsorbent dosage, the effect of initial concentration and contact time, the kinetic and isotherm study. The optimum dosage used in this study was 0.0.4 g while the optimum pH for the adsorption of lead ions was pH 4. The adsorption capacities depended on lead concentration and contact time. It required a relatively short period of time to reach an equilibrium which is less than 60 minutes. Two kinetics models; pseudo first order and pseudo second order were used to analyze the lead adsorption process. Pseudo second order model was found to fit well enough the experimental data compared to pseudo first order. © 2018, Malaysian Society of Analytical Sciences. All rights reserved.
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