| 直接脱碳酸化制备有机离子插层的层状双氢氧化物 |
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| 引用本文： | 许孔力,陈光明,沈建权. 直接脱碳酸化制备有机离子插层的层状双氢氧化物[J]. 高等学校化学学报, 2012, 33(4): 649-651. DOI: 10.3969/j.issn.0251-0790.2012.04.001 |
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| 作者姓名： | 许孔力 陈光明 沈建权 |
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| 作者单位： | 1. 中国科学院化学研究所, 北京分子科学国家实验室, 北京 100190;2. 中国科学院研究生院, 北京 100049 |
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| 摘 要： | 层状双氢氧化物(Layered double hydroxide, LDH)是一种具有阴离子可交换性质的层状无机材料, 由于其具有多种功能性质, 已被广泛应用于催化[1~3]、酸吸附剂[4]、传感器[5]及聚合物填料[6~8]等领域. 传统的共沉淀法制备的LDH结晶度低、尺寸小(直径通常小于100 nm). 1998年, Costantino等[9]采用均匀沉淀法制备出了高结晶度、大尺寸(微米量级)且层间具有CO32-的LDH(LDH-CO3), 引起了人们的极大兴趣. 为解决LDH-CO3难于交换和剥离的难题, Iyi等[10,11]采用两步法制备了层间具有NO3- 或有机阴离子的LDH, 即首先采用 HCl-NaCl混合溶液将LDH-CO3转化成为LDH-Cl, 然后再采用过量的阴离子进行交换制备LDH-NO3或有机阴离子插层的LDH.
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| 关 键 词： | 层状双氢氧化物 有机阴离子插层 直接脱碳酸化 |
| 收稿时间： | 2011-12-28 |
Synthesis of Organically-modified Layered Double Hydroxides by Direct Decarbonation |
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| XU Kong-Li , CHEN Guang-Ming , SHEN Jian-Quan. Synthesis of Organically-modified Layered Double Hydroxides by Direct Decarbonation[J]. Chemical Research In Chinese Universities, 2012, 33(4): 649-651. DOI: 10.3969/j.issn.0251-0790.2012.04.001 |
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| Authors: | XU Kong-Li CHEN Guang-Ming SHEN Jian-Quan |
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| Affiliation: | 1. Beijing National Laboratory for Molecular Sciences(BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China;2. Graduate School of Chinese Academy of Sciences, Beijing 100049, China |
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| Abstract: | A convenient direct decarbonation method was developed to prepare organically-modified layered double hydroxides[dodecyl sulfate or dodecyl benzene sulfonate anions intercalated LDHs(LDH-DS or LDH-DBS)] using LDH-CO3 as raw material.The resulting products were characterized by powder X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR) and scanning electron microscopy(SEM).The results show that the LDH-DS and LDH-DBS with high crystallinity and high purity are successfully obtained,and their morphology and sizes are unchanged. |
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| Keywords: | Layered double hydroxide(LDH) Organic anion intercalation Direct decarbonation |
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