| Organotemplate-free Hydrothermal Synthesis of SUZ-4 Zeolite： Influence of Synthesis Conditions |
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| 作者姓名： | 周华兰 吴雅静 张伟 王军 |
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| 作者单位： | 1.State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China;2.College of Sciences, Nanjing University of Technology, Nanjing 210009, China |
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| 基金项目： | Supported by the National lqatural Science Foundation of China （20976084, 21101094, 21136005）. |
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| 摘 要： | Various conditions were investigated in detail for the novel organic template-free static hydrothermal synthesis of SUZ-4 zeolite in the presence of seeds. The obtained samples were characterized by XRD （X-ray diffraction）, SEM （scanning electron microscope）, TG （thermal gravimetric analysis）, ICP （inductively coupling plasma） elemental analysis, nitrogen sorption isotherm and surface area. The results show that pure SUZ-4 zeolites with high crystallinity are obtained in a broad window of synthesis conditions： seed mass concentration 0.2%-2%, SIO2/A1203 molar ratio 21 25, KOH/SiO2 molar ratio 0.33 0.43, H20/SiO2 molar ratio 7.14-38.1, aging time 24 h, crystallization temperature 160℃, and crystallization time 6-10 d. Also, crystallinity and size of the rod-like SUZ-4 zeolite crystals are found to alter with the conditions.
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| 关 键 词： | crystal growth microporous materials SUZ-4 zeolite zeolite synthesis organic template-free |
| 收稿时间： | 2012-03-22 |
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