Adsorption of Copper (II) Ion by Leucaena leucocephala pods: article / Nur Amalia Zulkepli and Noor Harliza Abd Razak

Agriculture solid waste was used to recovery of valuable material such as Leucaena leucocephala pods that finds the significant role in adsorption. Agriculture solid waste was used to recovery of valuable material such as Leucaena leucocephala pods that finds the significant role in adsorption. The objective of this paper is to study on adsorption of copper metal ions by Leucaena leucocephala pods. ICP-AES ensures the optimizations of the influences of the effective parameters including contact time, pH and adsorbents. The different instrumental analysis like TGA, FTIR, XRF and zeta potential measurement which additionally authenticated the sorption phenomenon describe the features of the biomass. The best condition of adsorption happened at pH 8.0 and the process adsorption was quite fast at 0.75 g dosage and within time 140 min. From the Fourier Transform Infrared (FTIR) Spectra result, it was showing that the Leucaena leucocephala pods had indicate the contribution of carboxyl groups with the binding of cu (II) ions which presented that the carboxylic group peak shifted from 1609 to 1644 cm⁻1 after copper metal ions binding. The best rate of adsorption of copper by Leucaena leucocephala pods within 140 min. The study established that Leucaena leucocephala pods can adsorb copper and altogether showing that the adsorption method was used to successfully execute post adsorption elution of the loaded metal.