| 新型特效Na离子吸附剂Li1+xAlxTi2-x(PO4)3的制备和性能研究 |
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| 引用本文： | 孙建之,邓小川,宋士涛,李法强,马培华.新型特效Na离子吸附剂Li1+xAlxTi2-x(PO4)3的制备和性能研究[J].无机材料学报,2006,21(1):169-175. |
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| 作者姓名： | 孙建之 邓小川 宋士涛 李法强 马培华 |
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| 作者单位： | 1. 中国科学科院青海盐湖研究所,西宁,810008;中国科学院研究生院,北京,100039
2. 中国科学科院青海盐湖研究所,西宁,810008 |
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| 摘 要： | 采用高温固相法合成了新型特效Na离子吸附剂Li1＋xAlxTi2-x（PO4）3．通过对不同条件下合成的样品XRD、SEM及其吸附性能的研究表明，少量Al的加入未影响到LiTi2（PO4）3的晶体结构，但使Li1＋xAlxTi2-x（PO4）3对Na离子产生了特效吸附作用．当x=0．4时，在pH值为10．0—11．0条件下，Li1＋xAlxTi2-x（PO4）3的吸附容量达到11．76mg／g．另外，本文对材料的激光拉曼光谱和红外光谱进行了研究和指认．
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| 关 键 词： | 吸附剂 含锂磷酸盐 制备 固相反应 |
| 文章编号： | 1000-324X（2006）01-0169-07 |
| 收稿时间： | 01 6 2005 12:00AM |
| 修稿时间： | 2005-01-062005-04-04 |
Preparation and Properties of Novel Na Specific Adsorbent Li1+xAlxTi2-x(PO4)3 |
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| SUN Jian-Zhi,DENG Xiao-Chuan,SONG Shi-Tao,LI Fa-Qiang,MA Pei-Hua.Preparation and Properties of Novel Na Specific Adsorbent Li1+xAlxTi2-x(PO4)3[J].Journal of Inorganic Materials,2006,21(1):169-175. |
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| Authors: | SUN Jian-Zhi DENG Xiao-Chuan SONG Shi-Tao LI Fa-Qiang MA Pei-Hua |
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| Affiliation: | 1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
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| Abstract: | A novel Na specific kind of adsorbent Li1+xAlxTi2-x(PO4)3 was synthesized by the high temperature solid state reaction method. The samples were characterized by X-ray diffraction (XRD) and scanning electron microscope(SEM), and their adsorption performances were investigated. The results indicate that the low concentration (x <0.6) Al dopant does not affect the structure of the material but makes it can selectively adsorb sodium. The results show that its exchange capacity is very high, even reach 11.76mg/g, under x=0.4, pH=10.0~11.0. In addition, Raman and FT-IR spectroscopic studies for these materials were carried out and the vibrational bands were assigned. |
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| Keywords: | adsorbent Li-contained phosphates preparation solid state reaction |
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