| 镁铝及镁锌铝水滑石的合成与表征 |
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| 引用本文： | 陈立谦,韩冰,刘琦.镁铝及镁锌铝水滑石的合成与表征[J].无机盐工业,2011,43(12):38-41. |
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| 作者姓名： | 陈立谦 韩冰 刘琦 |
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| 作者单位： | 1. 常州大学石油化工学院,江苏常州,213164
2. 南京工程学院材料工程学院 |
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| 基金项目： | 南京工程学院校级科研基金，江苏省高校自然科学研究项目 |
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| 摘 要： | 采用共沉淀法合成镁铝及镁锌铝水滑石,并通过X射线衍射(XRD)、红外光谱(FT-IR)、扫描电镜(SEM)、热分析(TG/DTG)、粒度分析等手段对合成的水滑石进行表征,研究不同镁、铝、锌的投料比例对合成的水滑石结构及热性能等的影响。XRD表征结果表明,合成产物均具有水滑石特征峰。合成的镁铝水滑石随着镁铝比的增加其层板间距增大,层板上原子密度降低;合成的镁锌铝水滑石随着锌含量的提高层板间距减小,层板上原子密度降低。镁铝水滑石热分解过程有两个明显阶段,层间结晶水先脱除,随后是层间阴离子脱除及层板上部分羟基脱水;镁锌铝水滑石热分解过程只有一个明显的阶段,层板间阴离子在层板间结晶水脱除的同时也在脱除。
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| 关 键 词： | 水滑石 合成 表征 |
Synthesis and characterization of Mg/Al and Mg/Zn/Al hydrotalcite |
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| Chen Liqian,Han Bing,Liu Qi.Synthesis and characterization of Mg/Al and Mg/Zn/Al hydrotalcite[J].Inorganic Chemicals Industry,2011,43(12):38-41. |
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| Authors: | Chen Liqian Han Bing Liu Qi |
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| Affiliation: | Chen Liqian1,Han Bing2,Liu Qi1 (1.School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China,2.School of Material Engineering,Nanjing Institute of Technology) |
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| Abstract: | Samples of Mg/Al and Mg/Zn/Al hydrotalcite were synthesized by coprecipitation method,and characterized by XRD,FT-IR,SEM,TG/DTG,particle analysis,and so on.Effect of different mix ratios of Mg,Al,and Zn on structure and thermal property of hydrotalcite was studied.XRD results showed that the synthesized substances all had the characteristic peaks of hydrotalcite.And it was demonstrated that the density of atoms in the layer decreased and the distance of the layers increased with the increasing of Mg/Al rati... |
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| Keywords: | hydrotalcite synthesis characterization |
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