Synthesis of Spherical Nanostructured g-Al2O3 Particles using Cetyltrimethylammonium Bromide (CTAB) Reverse Micelle Templating
| Main Authors: | Benu, Didi Prasetyo, Suendo, Veinardi, Mukti, Rino Rakhmata, Febriyanti, Erna, Steky, Fry Voni, Adhika, Damar Rastri, Tanuwijaya, Viny Veronika, Nugraha, Ashari Budi |
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| Other Authors: | Penelitian Dasar Unggulan Perguruan Tinggi (PDUPT) Research Grant |
| Format: | Article info application/pdf Journal |
| Bahasa: | eng |
| Terbitan: |
Department of Chemical Engineering - Diponegoro University
, 2019
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| Subjects: | |
| Online Access: |
https://ejournal2.undip.ac.id/index.php/bcrec/article/view/3855 https://ejournal2.undip.ac.id/index.php/bcrec/article/view/3855/2662 https://ejournal2.undip.ac.id/index.php/bcrec/article/downloadSuppFile/3855/887 https://ejournal2.undip.ac.id/index.php/bcrec/article/downloadSuppFile/3855/888 |
Daftar Isi:
- We demonstrated the synthesis of spherical nanostructured g-Al2O3 using reverse micelle templating to enhance the surface area and reactant accessibility. Three different surfactants were used in this study: benzalkonium chloride (BZK), sodium dodecyl sulfate (SDS) and cetyltrimethylammonium bromide (CTAB). We obtained spherical nanostructured particles only using CTAB that form a reverse micelle emulsion. The particles have wide size distribution with an average size of 2.54 mm. The spherical particles consist of nanoplate crystallites with size 20-40 nm randomly arranged forming intercrystallite spaces. The crystalline phase of as-synthesized and calcined particles was boehmite and g-Al2O3, respectively as determined by XRD analysis. Here, the preserved particle morphology during boehmite to g-Al2O3 transformation opens a facile route to synthesize g-Al2O3 particles with complex morphology. The specific surface area of synthesized particles is 201 m2/g, which is around five times higher than the conventional g-Al2O3 (Aldrich 544833). Spherical nanostructured g-Al2O3 provides wide potential applications in catalysis due to its high density closed packed structure, large surface area, and high accessibility. Copyright © 2019 BCREC Group. All rights reserved