KONDISI OPTIMUM ADSORPSI Pb(II) MENGGUNAKAN NANOMATERIAL PASIR BESI PANTAI KENDAL TERLAPIS SILIKA-TRIAMIN

Abstract

The Lead (Pb) was heavy metal that toxic and dangerous for environment. In this research the application of hybrids nanomaterial of silica modified with the coated triamin group on Kendal Coastal Magnetic Sand Materials
(PB@SiO2@TA) to adsorb heavy metals Pb(II) at laboratory scale has been
investigated at pH variations, variations concentrations of Pb(II) solutions as adsorbate and variations of adsorption time. The aim of this research was to determined the ability adsorption from PB@SiO2 @TA to heavy metal ions of Pb(II) and also determined of optimum adsorption conditions. The result showed that hybrids nanomaterial of silica modified with the coated triamin group on Kendal Coastal Magnetic Sand Materials could adsorb metal ions of Pb(II)with high capability. Adsorption of Pb(II) by PB@SiO2 @TA showed the highest concentration of Pb(II) already adsorbed at pH 4. The Optimum adsorption time at 150 minutes with concentrations of Pb(II ) was adsorbed at most is 259,302 ppm, and the effective adsorption time at 60 minutes with a Pb(II) concentration was adsorbed of 258,922 ppm with a difference of concentration that did not too significant. The highest adsorbed Pb(II) concentration was at an initial Pb(II) concentration of 500 ppm which was as many as 462.156 ppm (92.43% of the Pb metal ion was adsorbed). The increased of concentration of Pb (II) in the initial solution, it was increased
the concentration of Pb(II) adsorbed by PB@SiO2 @TA.
Keywords: adsorption, nanomaterial, propyldiethylenetriamine group, Pb
(II), Iron sand