以天然植物为模板合成高度有序的多级复合孔材料

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (6): 1103.

以天然植物为模板合成高度有序的多级复合孔材料

马金艳¹, 曲凤玉^1,2 , 徐莹璞¹, 李晓丰¹

1. 哈尔滨师范大学化学化工学院, 哈尔滨 150025;
2. 黑龙江省先进功能材料及激发态重点实验室, 哈尔滨 150025

收稿日期:2009-10-20 出版日期:2010-06-10 发布日期:2010-06-10
通讯作者: 曲凤玉, 女, 博士, 教授, 主要从事无机功能材料的研究. E-mail: qufengyu@hrbnu.edu.cn
基金资助:
国家自然科学基金(批准号: 20871037)、黑龙江省自然科学基金(批准号: B2007-2)和黑龙江省教育厅科研项目(批准号: 11531229)资助.

Highly-Ordered Hierarchical Composite Pore Materials Using Natural Plants as Templates

MA Jin-Yan¹, QU Feng-Yu^1,2*, XU Ying-Pu¹, LI Xiao-Feng¹

1. College of Chemistry and Chemical Engineering, Harbin Normal University,
2. Key Laboratory of Advanced Functional Materials and Excited State, Harbin 150025, China

Received:2009-10-20 Online:2010-06-10 Published:2010-06-10
Contact: QU Feng-Yu. E-mail: qufengyu@hrbnu.edu.cn
Supported by:
国家自然科学基金(批准号: 20871037)、黑龙江省自然科学基金(批准号: B2007-2)和黑龙江省教育厅科研项目(批准号: 11531229)资助.

摘要/Abstract

摘要：

筛选出两种孔径较大且孔结构规则的植物为大孔模板, 以嵌段共聚物为介孔相模板成功合成了两种具有连续的骨架和贯通的大孔孔道(大孔孔径大于40 μm, 其孔壁为介孔相)的高度有序多级复合孔材料. 对该复合孔材料进行了水热稳定性研究. 用扫描电子显微镜(SEM)、粉末X射线衍射仪(XRD)、高分辨率透射电镜(HRTEM)以及N₂吸附-脱附等测试手段对合成的样品进行了表征. 结果表明, 合成的产物是孔道相互贯通的多级有序复合孔硅材料, 具有较好的水热稳定性. 采用此合成方法可精确地复制大孔植物模板.

关键词: 生物模板; 高度有序; 多级复合孔; 水热稳定性

Abstract:

Two kinds of highly-ordered hierarchical pore materials with large poresize of 40—80 μm and mesoporous phase in inner-wall were synthesized successfully using two kinds of natural plants as macroporous templat, P123 as mesoporous templat. The hydrothermal stability of the samples was investigated in 37 ℃ water. Scanning electron microscopy(SEM), powder X-ray diffraction(XRD), high-resolution transmission electron microscopy(HRTEM) and N₂ adsorption/desorption are used to characterize the structure and properties of the products. The results confirmed that as-synthesized products own the macroporous and mesoporous phases. And the sample prepared with the stem of cattail as template shows good hydrothermal stability. This method can be used to replicate macroporous plant templates precisely. Since the aperture and pore structure of different plants are variable, it provides a natural condition for the synthesis of materials of different aperture holes and pore structure, and the organizational structure of the pore is to transport nutrient and water, so the hierarchical porous materials may have more superrior performance and application in the field of macromolecules separation, bone tissue regeneration ang drug delivery.

Key words: Bio-template; Highly ordered; Hierarchical composite pore; Hydrothermal stability

TrendMD:

马金艳, 曲凤玉, 徐莹璞, 李晓丰. 以天然植物为模板合成高度有序的多级复合孔材料. 高等学校化学学报, 2010, 31(6): 1103.

MA Jin-Yan, QU Feng-Yu*, XU Ying-Pu, LI Xiao-Feng. Highly-Ordered Hierarchical Composite Pore Materials Using Natural Plants as Templates. Chem. J. Chinese Universities, 2010, 31(6): 1103.

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