摘要
以聚苯乙烯胶晶为模板，3-氨基-丙基-三乙氧基硅烷和正硅酸乙酯为前驱物，合成了三维有序大孔（3DOM）氨基功能化SiO2-NH2材料。SEM观察表明，合成的3DOM材料具有规则整齐的大孔通孔结构，平均孔径在535—596nm之间，孔径收缩率为4．8％-14．5％。FTIR分析表明，材料中含有氨基等有机基团。BET分析表明，材料的比表面积为10．2m^2／g。合成的3DOMSiO2-NH2材料对Cr（Ⅵ）离子的吸附能力随着材料中氨基含量的增加而增大，最大吸附量为4．31mmol／g。
Hybrid 3DOM SiO2-NH2 materials with different amino contents have been prepared with （3- aminoproyl） triethoxysilane（APTES） and tetraethoxysilane（TEOS） as precursors and PS colloidal crystal as a template. SEM observations showed that the macropores were highly ordered and interconnected by small windows. The mean pore diameters of the materials were between 535 and 596 nm, and the pore shrinkage was between 4. 8% and 14. 5%. The surface area of the material was 10. 2 m^2/g. FTIR measurements showed that there were amino and organic groups in the pore walls. Adsorption capability of the materials were investigated with Cr （ Ⅵ ） ion as the adsorbate. The results showed that the adsorption quantity increased with the amount of the amino group in the material and the maximal adsorption quantity was 4. 31 mmol/g.
出处
《应用化学》
CAS
CSCD
北大核心
2009年第3期367-369,共3页
Chinese Journal of Applied Chemistry
关键词
三维有序大孔
氨基
功能化
材料
three-dimensioally ordered macroporous,amino, functionalization,material
