PENGARUH WAKTU AGING DAN RASIO MOL Si/Al TERHADAP SINTESIS MCM-41 PADA TEMPERATUR KAMAR
| Main Authors: | , ISTI YUNITA, , Dr. Sutarno, M.Si. |
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| Format: | Thesis NonPeerReviewed |
| Terbitan: |
[Yogyakarta] : Universitas Gadjah Mada
, 2011
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| Subjects: | |
| Online Access: |
https://repository.ugm.ac.id/89624/ http://etd.ugm.ac.id/index.php?mod=penelitian_detail&sub=PenelitianDetail&act=view&typ=html&buku_id=51740 |
Daftar Isi:
- Effect of aging time and mole ratio of Si/Al on the synthesis of MCM-41 at room temperature has been studied. MCM-41 was synthesized from sodium silicate and cetyltrimethylammonium bromide (CTAB). The structure of MCM-41 synthesized at room temperatur was compared with MCM-41 synthesized by conventional hydrothermal method. The synthesized and calcined MCM-41 were used for adsorption of phosphate and methylene blue at various pH, contact time and adsorbate concentration. The effect of aging time and mole ratio of Si/Al on the structure of MCM-41 were evaluated by X-ray diffraction, infrared spectroscopy and adsorption desorption N2. The amount of adsorbate phosphate and methylene blue on MCM-41 were analyzed by using UV-Vis spectroscopy. Results showed that the optimum synthesis of MCM-41 obtained at room temperature with aging time of 48 hours and the molar ratio of Si/Al = 25. The optimum condition of phosphate adsorption on as-synthesized MCM-41 and Al- MCM-41 was obtained at pH 5.5 and contact time of 60 minutes, with the adsorption capacity of 50.27 mg.g-1 and 49.95 mg.g-1, respectively. The adsorption capacity of methylene blue on calcined Al-MCM-41 was more higher than calcined MCM-41.