| 硝酸盐溶液浓度对镁铝水滑石结构记忆效应的影响 |
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| 引用本文： | 程晓丹,徐爱菊,王奖,贾美林,照日格图.硝酸盐溶液浓度对镁铝水滑石结构记忆效应的影响[J].工业催化,2012,20(12):30-33. |
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| 作者姓名： | 程晓丹 徐爱菊 王奖 贾美林 照日格图 |
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| 作者单位： | 内蒙古师范大学化学与环境科学学院 内蒙古自治区绿色催化重点实验室，内蒙古 呼和浩特 010022 |
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| 基金项目： | 内蒙古自然科学基金博士基金(2010BS0806)资助项目；内蒙古自治区高等学校科学研究项目(NJZY11034)；内蒙古自然科学基金开放课题(2010KF02)资助项目 |
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| 摘 要： | 用共沉淀法制备了镁铝水滑石，并进行XRD、N2吸附-脱附、TG-DTA和FT-IR等表征。结果表明，制备的镁铝水滑石呈六方晶型，比表面积为121 m2·g-1。研究了硝酸盐溶液浓度对水滑石结构记忆性的影响，发现400 ℃焙烧5 h的镁铝水滑石在硝酸铜和硝酸铁溶液中浸泡可以恢复水滑石结构，溶液浓度越低越容易恢复，同时NO3-插入水滑石的层间可以形成一种新型应用功能材料。
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| 关 键 词： | 催化化学 镁铝水滑石 共沉淀法 结构记忆效应 |
Influence of nitrate solution concentration on the memory effect of Mg-Al hydrotalcite |
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| CHENG Xiaodan,XU Aiju,WANG Jiang,JIA Meilin,BAO Zhaorigetu.Influence of nitrate solution concentration on the memory effect of Mg-Al hydrotalcite[J].Industrial Catalysis,2012,20(12):30-33. |
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| Authors: | CHENG Xiaodan XU Aiju WANG Jiang JIA Meilin BAO Zhaorigetu |
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| Affiliation: | College of Chemistry and Environmental Science, Inner Mongolia Normal University, Inner Mongolia Key Laboratory of Green Catalysis, Hohhot 010022, Inner Mongolia, China |
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| Abstract: | Mg-Al hydrotalcite was prepared by coprecipitation method and characterized by XRD,N2-adsorption-desorption,TG-DTA and FT-IR.The results showed that the as-prepared Mg-Al hydrotalcite with 121 m2·g-1 specific surface area possessed hexagonal phase.The influence of nitrate solution concentration on the memory effect of Mg-Al hydrotalcite was investigated.It was found that Mg-Al mixed oxides formed after being calcined at 400 ℃ for 5 h was dipped in different concentration of Cu(NO3)2 and Fe(NO3)3 aqueous solution.The hydrotalcite structure could be recovered and the memory effect of hydrotalcite was influenced by salt solution concentration.Furthermore,the lower concentration was more advantageous to the recovery of hydrotalcite structure.The results of FT-IR demonstrated that the insertion of NO3- in the layer of hydrotalcite could be observed,which might form a new type application function material. |
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| Keywords: | catalytic chemistry Mg-Al hydrotalcite coprecipitation method structure memory effect |
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