ACADSTAFF UGM
| Title | : | Study of glucose adsorption on synthetic |
| Author | : |
AULIA WAHYUNINGTYAS (1) Prof. Drs. Roto, M.Eng, Ph.D. (2) |
| Date | : | 30 2016 |
| Keyword | : | Glucose adsorption, Synthetic humin Glucose adsorption, Synthetic humin |
| Abstract | : | Synthetic humin, a new kind of adsorbents, has been synthesized and the adsorption of glucose on synthetic humin has been performed. The starting compound was obtained by leaching synthetic humus, which has been made by mixing biochar and hydrochar, by solution of 0.5 M NaOH. The effects of contact time, initial glucose concentration and pH on the adsorption process were studied through batch experiment. After adsorption, the residual glucose concentration was measured by UV-visible spectrometry using Nelson-Somogyi method. Results show that the synthetic humin can adsorp 100 ppm glucose concentration completely at 48 h. Both the Langmuir and Freundlich models have analyzed the adsorption isotherm. However, the adsorption data were best fitted to the Freundlich isotherm with K value 0.00478 mg g-1. The adsorption of glucose by humin follows Ho's pseudo-second order kinetic model. It was found that the adsorption capacity of humin was 4.8 mg g-1 with rate constant of 8.42 × 10-5 g mg-1 min-1. |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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