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Synthesis of SUZ-4 Zeolite Membrane Derived from Rice Husk Ash: Study of Physical Properties |
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| รหัสดีโอไอ | |
| Creator | 1. Pakkarada Sansuksom 2. Paisan Kongkachaichuy |
| Title | Synthesis of SUZ-4 Zeolite Membrane Derived from Rice Husk Ash: Study of Physical Properties |
| Publisher | Faculty of Engineering, Khon Kaen Univeristy |
| Publication Year | 2553 |
| Journal Title | KKU Engineering Journal |
| Journal Vol. | 37 |
| Journal No. | 4 |
| Page no. | 349-357 |
| Keyword | Zeolite SUZ-4, Zeolite Membrane, Polyamine, Spin-coating |
| ISSN | 0125-8273 |
| Abstract | The zeolite SUZ-4 membrane was synthesized for further use in De-NOx reaction. Firstly, the zeolite SUZ-4 crystals were synthesized via Sol Gel hydrothermal process using rice husk ash (RHA) as raw material altogether with other chemicals. The mullite tube was used as a support for SUZ-4 membrane. Before spin-coating in SUZ-4 colloidal solution, the mullite was modified its surface charge from negative to positive at pH 4 by pretreatment with polyamine solution. After varying coating time and concentration of polyamine solution, it was found that the optimum coating time was 15 minutes with 4 wt.% polyamine solution. The obtained SUZ-4 membrane was 20 ?m thickness having 0.058 wt.% of the support. In addition, the thickness of the membrane was increased about 20 ?m for each re-spin-coating. The synthesized SUZ-4 membranes have the specific surface areas in the range of 17.6-23.1 m2/g and its pore size distribution reveals tri-modal distribution having the average size in the range of 20-80 ?. |
