| 氨基功能化SiO_2的制备、表征及吸附性能 |
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| 引用本文： | 朱延方,张歆. 氨基功能化SiO_2的制备、表征及吸附性能[J]. 汕头大学学报(自然科学版), 2007, 22(1): 42-47 |
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| 作者姓名： | 朱延方 张歆 |
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| 作者单位： | 1. 汕头大学化学系,广东,汕头,515063;河南机械工业第六设计研究所,郑州,450007
2. 汕头大学化学系,广东,汕头,515063 |
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| 基金项目： | 广东省重点自然科学资金;广东省自然科学基金 |
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| 摘 要： | 用水包油微乳模板法和后嫁接法相结合,制得氨基功能化介孔SiO2材料,并对其作为Cr(VI)的有效吸附剂进行表征及测定.N2吸附/脱附及小角X衍射实验均证明该材料具有典型的介孔结构;通过红外测定可知,功能性基团(—NH2)已成功接枝于介孔SiO2材料的孔道内部(表面);氨基对Cr(VI)的吸附起主要作用,吸附饱和的功能化材料可经酸洗(HCL)回收利用.
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| 关 键 词： | 微乳法 介孔SiO_2 吸附 铬 分光光度法 |
| 文章编号： | 1001-4217（2007）01-0042-06 |
| 收稿时间： | 2006-06-06 |
| 修稿时间： | 2006-06-06 |
Synthesis, Characterzation and Adsorption Properties of Amino-Functionalized Mesoporous Silica |
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| ZHU Yan-fang,ZHANG Xin. Synthesis, Characterzation and Adsorption Properties of Amino-Functionalized Mesoporous Silica[J]. Journal of Shantou University(Natural Science Edition), 2007, 22(1): 42-47 |
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| Authors: | ZHU Yan-fang ZHANG Xin |
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| Abstract: | Animo-functionalized mesoporous silica had been prepared by oil-in-water microemulsion template and post-synthesis grafting.The resulting material was characterized and tested as an effective adsorbent for Cr(VI).Both N2 adsorption/desorption measurements and small angle X-ray scattering spectroscopy demonstrated that the material possessed a typical mesoporous structure with diameters ranging from 1.7 to 5 nm.The introduction of the animo functional groups inside the mesoporous silica channel had also been identified by FT-IR.Amino groups played a main role to Cr(VI) immobilization.It showed that depleted adsorbents could be readily recovered and re-utilized repeatedly through simple acid(HCL) treatment. |
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| Keywords: | microemulsion mesoporous silica adsorption chromate spectrophotometry |
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