固相微萃取涂层材料CH_2OCHCH_2O(CH_2)_3-SBA-15的制备与表征  

Synthesis and Characterization of Solid-phase Micro-extraction Coating Material CH_2OCHCH_2O(CH_2)_3-SBA-15

作　　者：刘妍[1] 侯经国[1] 田锐[1] 马骞 杜红英[1] 杨武[1] 

机构地区：[1]西北师范大学化学化工学院,甘肃兰州730070 [2]金川集团有限公司,甘肃金昌737100

出　　处：《当代化工》2005年第5期332-335,共4页Contemporary Chemical Industry

基　　金：国家自然科学基金(20475044);西北师范大学知识与科技创新工程(KJCX-01)资助项目

摘　　要：以甲基三乙酰氧基硅烷(γ-glycidoxypropyltrimethoxy silane,CH2OCHCH2O(CH2)3Si(OCH3)3;GPTES)为偶联剂,将醚基官能团接枝于SBA-15介孔分子筛孔道中,制备了无机-有机复合介孔材料CH2OCHCH2O(CH2)3-SBA-15,用小角X射线衍射,N2吸附-脱咐,元素分析,红外光谱和滴定法对复合材料进行了表征。结果表明,醚基有机基团成功接枝到SBA-15孔道内壁,而且SBA-15仍保持了有序的孔道结构。并研究了CH2OCHCH2O(CH2)3-SBA-15的萃取效能,结果表明,该涂层材料对多环芳烃有较高的萃取效率。Ether organic group was gratted into the pore ot mesoporous molecule sieve SBA- 15 with T- glycidoxypropyltrimethoxy silane as the coupling agent and inorganic/organic composite mesoporous material CH2OCHCH2O（CH2 ）3 - SBA - 15 was synthesized. The structure of material synthesized was characterized by XRD, nitrogen adsorption - desorption, elemental analysis,. FT- IR and titration. The results indicated that ether group was successfully grafted into the inner wall and wall - ordered mesoporous structre of SEA- 15 was still reserved. It was found that the material synthesized had high extraction efficiency to polycyclic aromatic hydrocarbons.

关 键 词：SBA-15 GPTES 修饰 表征 

分 类 号：TQ424[化学工程]