ADSORPSI PENGOTOR MINYAK DAUN CENGKEH OLEH LEMPUNG TERAKTIVASI ASAM

Abstract

Preparation, characterization and application of acid activated clays as adsorbents on the purification of clove leaves
oil have been conducted. The effects of concentration of acid on the quality of the activated clay and on the
adsorption performance of the prepared activated clay were also studied. Characterization of the activated clay was
carried out using gas sorption analyzer and FTIR spectroscopy
The results showed that the spesific surface area of the activated clays increases with increasing
concentration of acid. At the concentration of acid of 0, 0.4, 0.8, 1.2, 1.6, and 2.0 M, the spesific surface areas were
48.27; 48.75, 54.31; 65.21; 62.91 and 51.86 m2/g, respectively. From the adsorption test, it was observed that the
activated clay prepared with concentration acid of 1,2 M, showed the best performance. It’s was able to adsorp 284.2
mg of impurity and thus purify 40 ml of crude clove leaves oil.