ACADSTAFF UGM
| Title | : | Modification of Silica Coated on Iron Sand Magnetic Material with Chitosanfor Adsorption of Au(III) |
| Author | : |
MUFLIKHAH (1) Prof. Dr. Bambang Rusdiarso, DEA (2) Edy Giri Rachman Putra (3) Prof. Dr.rer.nat. Nuryono, M.S. (4) |
| Date | : | 2017 |
| Keyword | : | silica; chitosan; iron sand; Au(III) adsorption silica; chitosan; iron sand; Au(III) adsorption |
| Abstract | : | Modification of silica coated on magnetic material iron sand with chitosan for adsorption of Au(III) has beencarried out. Magnetic material (MM) from iron sand was separated using an external magnet, washed with water andHF solution 10%. MM–silica–chitosan material (MMSC) was synthesized via sol gel process and the product wascharacterized with Fourier Transform Infrared (FT-IR) spectrophotometer, X–ray diffractometer, scanning electronmicroscopy and energy dispersive X–ray, thermogravimetric analysis, and vibration sample magnetometer.Additionally, the effect of pH on the stability of MMSC has also been tested. The adsorption of Au(III) on MMSC wasproceeded in a batch system with variation of pH, contact time, and concentration of absorbate. Adsorbent wasseparated using external magnet and concentration of Au(III) not adsorbed was analyzed using Atomic AbsorptionSpectrometer. Characterization result indicated that MMSC was successfully synthesized. Adsorption of Au(III) onMMSC followed pseudo second-order kinetic model with the value of adsorption rate constant (k) of 4.10 x 10-3g mg-1min-1and adsorption isotherm fixed with Langmuir model with the adsorption capacity (qmax) of 149.25 mg g-1. |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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| No | Title | Action |
|---|---|---|
| 1 |
22549-57559-1-PB.pdf
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