ACADSTAFF UGM
| Title | : | Synthesis and characteristics of the magnetic properties of Fe3O4-(CTAB-montmorillonite) composites, based on variation in Fe3+/Fe2+ concentrations |
| Author | : |
SRI HILMA SIREGAR (1) Prof. Dr. rer. nat. Karna Wijaya, M.Eng. (2) Prof. Eko Sri Kunarti, M.Si., Ph.D. (3) Akhmad Syoufian, Ph.D. (4) |
| Date | : | 0 2018 |
| Keyword | : | Fe3O4-(CTAB-Mt),Magnetite,Montmorillonite Fe3O4-(CTAB-Mt),Magnetite,Montmorillonite |
| Abstract | : | This research aims to determine characteristics of the magnetic properties of Fe3O4-(CTAB-Montmorillonite) composites and the effect of variation in Fe3+/Fe2+ concentrations on the characteristics of Fe3O4-(CTAB-Montmorillonite) composites. Fe3O4-(CTAB-Montmorillonite) composites were synthesized using an in situ co-precipitation method. The synthesis was carried out by mixing FeCl3·6H2O and FeSO4·7H2O (in different concentrations) with a mole ratio of Fe3+ to Fe2+ by 2:1, which was then mixed into the CTAB-montmorillonite suspension. This mixture was stirred using a magnetic stirrer at 3500 rpm for 30 min. at a temperature of 85 °C, then the ammonia solution 25% was added. reaction lasted for 24 hours. The resulting composites were characterized using XRD, BET, and VSM to measure the magnetic properties of the materials. Results of the XRD data analysis showed that the values of d(311) is equal to 2.5686 Å and d(220) is equal to 2.947 Å, which are the characteristics of the materials known as magnetite. Based on the VSM data obtained, the magnetic saturation (Ms) values for samples of different concentrations were as follows: SH01=14.0 emu/g, SH02= 29.0 emu/g, SH03= 28.9 emu/g, SH04= 45.2 emu/g, and SH05= 64.1 emu/g. |
| Group of Knowledge | : | Kimia |
| Original Language | : | English |
| Level | : | Internasional |
| Status | : |
Published
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OJC_Vol34_No2_p_716-722.pdf
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jurnal_2036770_597d976d71808ec066e6274d480166d9.pdf
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| 3 |
Synthesis and characteristics of the magnetic properties of Fe3O4-(CTAB-montmorillonite) composites, based on variation in Fe3+-Fe2+ concentrations.pdf
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Universitas Gadjah Mada Mail - Confirmation of paper.pdf
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