Synthesis of Mesoporous Alumina from Red Mud
| Main Authors: | Eka Putra Ramdhani, Suprapto, Didik Prasetyoko, Hartati |
|---|---|
| Format: | BookSection PeerReviewed Image Book |
| Bahasa: | eng |
| Terbitan: |
Faculty of Mathematics and Sciences, Yogyakara State University
, 2015
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| Subjects: | |
| Online Access: |
http://repository.unair.ac.id/98193/1/C16.%20Abstract_Synthesis%20of%20Mesoporous%20Alumina.pdf http://repository.unair.ac.id/98193/2/C16.%20Synthesis%20of%20Mesoporous%20Alumina%20from%20Red%20Mud.pdf http://repository.unair.ac.id/98193/3/C16..%20Review%20dan%20Validasi_Synthesis%20of%20Mesoporous%20Alumina.pdf http://repository.unair.ac.id/98193/4/C16...%20Similarity_Synthesis%20of%20Mesoporous%20Alumina%20from%20Red%20Mud.pdf http://repository.unair.ac.id/98193/ https://core.ac.uk/download/pdf/33518189.pdf |
Daftar Isi:
- Mesoporous Al2O3 has been successfully synthesized by using calcined red mud as raw material and cetyltrimethylammonium bromide (CTAB) as template at room temperature. The effect of CTAB ratio on the structural and textural properties of mesoporous Al2O3 was investigated. In this study, Al2O3 from red mud was separated by centrifugation, dissolving and precipitation methods. Firstly, HCl 6N solution was added to separate SiO2. Subsequently, other impurities was separated by addition of NaOH 5N solution. Physical properties of obtained samples were characterized by X-ray diffraction (XRD), N2 adsorption-desorption, transmission electron microscopy (TEM), scanning electron microscopy (SEM) with energydispersive X-ray analysis (EDAX). The results indicated that red mud has a great potential as mesoporous alumina. XRF result of red mud from Bintan Kepulauan Riau shown that it most contains of Al2O3 29 wt%, Fe2O3 44.86 wt%, and SiO2 20.3 wt%. XRD results confirmed that mesoporous Al2O3 was obtained after calcined samples at 550 °C. BET results indicated that all samples had mesoporous structures with BET surface area of 241 m2/g and pore size of 3.820 nm. In addition, the reaction mechanism, involved in the process was proposed and discussed.