| SBA－16硅基介孔材料结构对Cd^2＋吸附性能的影响 |
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| 引用本文： | 金政伟,王建清,高文华.SBA－16硅基介孔材料结构对Cd^2＋吸附性能的影响[J].天津轻工业学院学报,2009(3):13-16. |
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| 作者姓名： | 金政伟 王建清 高文华 |
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| 作者单位： | 天津科技大学包装与印刷工程学院,天津300222 |
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| 基金项目： | 国家科技支撑计划课题（2006BAD30802-3）;天津科技大学引进人才科研启动基金资助项目（20070444） |
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| 摘 要： | 分别采用一步法和两步法，在不同酸性介质中设计合成了Im3m结构的SBA－16硅基介孔材料，并通过XRD、TEM、氮气吸附－脱附、^29Si固体核磁等手段进行了表征，研究SBA－16硅基介孔材料合成条件和结构对溶液中Cd^2＋吸附性能的影响．结果表明：在相同条件下，SBA－16硅基介孔材料的孔径越大、比表面积越高、孔壁表面Si—OH的数量越多，对Cd^2＋的吸附性能越佳．
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| 关 键 词： | 立方硅基介孔材料 吸附 SBA-16 镉离子 |
Effects of Structural Characteristics of SBA-16 Mesoporous Silica on Adsorption of Cadmium Ion |
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| JIN Zheng-wei,WNAG Jian-qing,GAO Wen-hua.Effects of Structural Characteristics of SBA-16 Mesoporous Silica on Adsorption of Cadmium Ion[J].Journal of Tianjin University of Light Industry,2009(3):13-16. |
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| Authors: | JIN Zheng-wei WNAG Jian-qing GAO Wen-hua |
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| Affiliation: | (College of Packaging and Printing Engineering, Tianjin University of Science ＆ Technology,Tianjin 300222, China) |
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| Abstract: | Well-ordered SBA-16 mesoporous silica materials with Im3m structure were synthesized via the one-step or two-step pathway under strongly or mildly acidic conditions. The properties of the prepared materials were confirmed by powder X-ray diffraction patterns （XRD） ,transmission electronic microscopy（TEM）,N2 adsorption-desorption isotherms and solid-state 29Si nuclear magnetic resonance （^29Si-NMR）. The adsorption properties of the prepared SBA- 16 materials were investigated by Cd^2＋ removal from aqueous solutions. The results suggest that adsorption capacity of the prepared SBA-16 materials increases with the increasing of pore size,specific surface area and the amount of remained Si--OH into silica wall whilst keeping all other conditions constant. |
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| Keywords: | mesoporous silica materials with cubic structure adsorption SBA-16 cadmium ion |
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