PENYERAPAN ION LOGAM Pb(II) DARI LARUTAN MENGGUNAKAN SERBUK DAUN PURING (Codiaeum variegatum)
Abstract: The adsorption of
metal ion Pb(II) by croton leaf powder through the activation of hydrochloric
acid (HCl) or chemical methods has been researched. The research aimed to
determine the optimum condition of croton leaf powder as adsorbent by variation
of contacting time (30, 60, 90 and 120 minutes) and the difference in mass of
adsorbent (1; 2; 3 and 4 grams ). This research began with downsizing the size
of croton leafs become to 100 mesh, then was performed chemical activation by
soaking the croton leaf powder with 2 N HCl. The adsorption was conducted by
contacting the adsorbent with a solution of the sample based on contacting time
and mass of adsorbent, then analyzed by Atomic Absorption Spectrophotometer
(AAS). The result showed that the optimum condition of adsorption was achieved
at 4 grams adsorbent by contacting time in the 60 minutes with Pb(II) adsorbed
1,76 mg/L or 35,2 %. Based on this findings, we concluded that the increase in
mass of adsorbent increased the adsorption power of metal ion Pb(II) by optimum
contacting time.
Penulis: Fitriani
Kode Jurnal: jpmatematikadd170155
