SYNTHESIS AND CHARACTERIZATION NANOPARTICLES OF MAGNETIC Fe3O4 FOR ADSORPTION OF CHROMIUM (VI)
| Main Authors: | Dewi, Sari Hasnah; Pusat Teknologi Bahan Industri Nuklir (PTBIN)-BATAN Kawasan Puspiptek Serpong 15314, Tangerang, ., Ridwan; Pusat Teknologi Bahan Industri Nuklir (PTBIN)-BATAN Kawasan Puspiptek Serpong 15314, Tangerang |
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| Other Authors: | BATAN |
| Format: | Article application/pdf eJournal |
| Bahasa: | ind |
| Terbitan: |
BATAN
, 2013
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| Online Access: |
http://jurnal.batan.go.id/index.php/jsmi/article/view/921 |
Daftar Isi:
- Nanoparticles of Fe3O4 has been synthesized using precipitation method. The nanoparticles were characterized by Scanning Electron Microscope (SEM), Vibrating Sample Magnetometer (VSM) and X-Ray Diffractometer (XRD). Adsorption efficiency of synthesized Fe3O4 to Cr (VI) fromaqueous solution at pH 6 and pH 11 have been investigated. Based on the data analysis, it was shown that the adsorption mechanism followed Langmuir isotherm model, and the adsorption capacity, Qo of Fe3O4 were calculated as 29.411 mg.g-1 and 21.739 mg.g-1 for pH 6 and pH 11respectively. The result showed that the adsorption efficiency was highly pH dependent, increased with increasing of shaking time and amount of adsorbent. The optimized adsorption condition was reached at pH 6. The adsorption kinetic was modelled by the pseudo-second-order rate equation, which give rate constant as 9.7087 mg.g-1 and 12.1951 mg.g-1 for pH 6 and pH 11 respectively.Keywords: Adsorption, Fe3O4, Chromium(VI), Langmuir.