KAPASITAS SERAPAN DAN ENERGI IKAT PADA BIOSORSPSI ION MANGAN(II) OLEH BIOMASSA Saccharomyces cerevisiae TERIMOBILISASI PADA CAMPURAN SILIKA GEL DAN ZEOLIT
Abstract: This research aims
to study the uptake capacity and binding energy in ion biosorption of
manganese(II) by biomass S. cerevisiae immobilized on silica gel and zeolite
mixture. As for the method is performed by varying the initial concentration of
manganese(II) in solution were contacted with biomass S. cerevisiae immobilized
on silica gel and zeolite. To determine the concentration of manganese(II) in
the solution used visible spectrophotometric method, using complexing
formaldoksim. amount of manganese ions(II) adsorbed by the immobilized biomass
was determined by calculating the difference between the concentration of
manganese(II) contained in the solution before and after contacted. The results
showed that the absorption of manganese(II) increased linearly as a function of
concentration up to 50 mg/L, sorption capacity calculations obtained using
Langmuir isotherm equation was 10.989 mg/g or 2,0 x 10-4 mol/g dry weight
biomass S. cerevisiae immobilized. Binding energy value between biomass S.
cerevisiae immobilized with manganese ions (II) is 30.69 kJ/mol. Thus the
interaction is a chemical interaction
Penulis: Jasmidi, Rahmat Nauli
Kode Jurnal: jpkimiadd140870
