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用非离子型嵌段高分子表面活性剂聚氧乙烯醚-聚氧丙烯醚-聚氧乙烯醚(EO106PO70EO106,F127)和2-(4-氯磺酰苯基)乙基三甲氧基硅烷合成出一种新型的含有2-(4-磺基苯基)乙基基团的SBA-16介孔材料。通过X射线衍射、核磁共振谱、扫描电镜、X射线荧光分析和气相色谱仪研究了样品的结构、形貌、组成和催化反应后的产物。结果表明:合成的含有2-(4-磺基苯基)乙基基团的SBA-16介孔材料样品是由大小均匀的微米级块状颗粒组成,属于体心立方(空间群为Im3m)结构,具有立方笼形孔结构孔和孔连通性以及高的比表面积(1028m2/g)。通过对乙酸和乙醇的催化反应表明:样品作为催化剂具有较高活性,初次使用时乙酸转化率为97%,乙酸乙酯的选择性为99%。经过4次使用后,乙酸转化率和乙酸乙酯的选择性仍然分别保持为97%和99%。
Polyoxyethylene ether-polyoxypropylene ether-polyoxyethylene ether (EO106PO70EO106, F127) and 2- (4-chlorosulfonylphenyl) ethyltrimethoxysilane were synthesized by using nonionic block macromolecular surfactant A Novel SBA-16 Mesoporous Material Containing 2- (4-Sulfophenyl) Ethyl Group. The structure, morphology, composition and catalytic reaction of the sample were studied by X-ray diffraction, nuclear magnetic resonance spectroscopy, scanning electron microscopy, X-ray fluorescence analysis and gas chromatography. The results show that the synthesized sample of SBA-16 mesoporous material containing 2- (4-sulfophenyl) ethyl group is composed of micron-sized massive particles of uniform size and belongs to body-centered cubic (space group Im3m) Structure with cubic cage pore structure and pore connectivity as well as high specific surface area (1028 m2 / g). The catalytic reaction of acetic acid and ethanol shows that the sample has higher activity as a catalyst. The initial conversion of acetic acid is 97% and the selectivity of ethyl acetate is 99%. After 4 uses, the conversion of acetic acid and the selectivity to ethyl acetate remained at 97% and 99%, respectively.