Potensi Arang Kulit Kacang Tanah (Arachis hypogea L.) Teraktivasi HCl sebagai Adsorben Ion Pb(II)
Keywords:
Kulit kacang tanah, Adsorben, Arang aktif, Adsorpsi, TimbalAbstract
The research on the potential of HCl–activated peanut shell charcoal as an adsorbent of Pb metal ion has been conducted. The research aimed to study the characteristics of the activated charcoal from peanut shells, to determine the optimum contact time and mass, and to study the effect of HCl on the ability of the charcoal to absorb Pb(II). It was found that the water content, ash content, and the surface area of active charcoal were 1.99%, 4.72% and 7.29 m2/g, respectively. The optimum conditions for Pb(II) adsorption using the activated charcoal in regard to the charcoal mass and contact time were 1.5 g and 30 minutes, respectively. Concentration variations of HCl affected the charcoal’s ability in adsorbing Pb(II), where the higher concentration of HCl was used, the greater amount of Pb(II) adsorbed. The adsorption capacity of the activated charcoal of peanut shells on Pb(II) was 3,98 mg/g.
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