具雙硫官能基中孔洞材料; SBA-1 的合成與鑑定 Synthesis and Characterization of Cubic Mesoporous Silicas SBA-1 with Disulfide Functionality

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题名:	具雙硫官能基中孔洞材料;SBA-1 的合成與鑑定 Synthesis and Characterization of Cubic Mesoporous Silicas SBA-1 with Disulfide Functionality
作者:	邱柏瑞;Po-Jui Chiu
贡献者:	化學研究所
关键词:	雙硫官能基;中孔洞材料;SBA-1;disulfide;mesoporous
日期:	2010-07-23
上传时间:	2010-12-08 14:17:25 (UTC+8)
出版者:	國立中央大學
摘要:	本篇論文分為三個部分，前兩部分為合成具雙硫官能基中孔洞材料 SBA-1，第一部分是利用 Tetraethyl orthosilicate (TEOS) 與 3-Mercaptopropyltrimethoxysilane (MPTMS) 為共同矽源，以 Cetyltriethylammonium bromide (CTEABr) 作為模板試劑，在直接合成法下利用具有氧化力的硫酸條件試著合成出具有雙硫官能基的中孔洞材料 SBA-1，預期原本的 SH 官能基會自行鍵結成 S-S 鍵。藉由 X-ray 繞射儀 (XRD)、固態核磁共振儀 (Solid-state NMR)、熱重分析儀 (TGA) 及氮氣等溫吸脫附儀等儀器鑑定材料的特性。第二部分是在硫酸條件下，利用直接合成法，以 CTEABr 作為模板試劑，使用 TEOS 與 Bis[3-(triethoxysilyl)propyl] disulfide (BTSPDS) 為共同矽源，合成出具有雙硫官能基的中孔洞材料 SBA-1，期望能合成出高比例且含硫量較多的材料，以利使用在往後的應用方面。同樣地，藉由 X-ray 繞射儀 (XRD)、固態核磁共振儀 (Solid-state NMR)、熱重分析儀 (TGA) 及氮氣等溫吸脫附儀等儀器鑑定材料的特性。第三部分將前兩部分合成之具雙硫官能基中孔洞材料 SBA-1 拿來應用，測試此材料對重金屬離子 Hg2+ 吸附的能力。 The thesis is divided into three parts. Studies on synthesizing well-ordered mesoporous silicas SBA-1 (Cubic Pm3n symmetry) functionalized with disulfide groups. In part one, the mesoporous silica SBA-1 functionalized with disulfide groups were synthesized via co-condensation of tetraethyl orthosilicate (TEOS) and 3-Mercaptopropyltrimethoxysilane (MPTMS) under oxidized sulfuric acid condition, and using cetyltriethylammonium bromide (CTEABr) as a structure-directing agent. The materials obtained were characterized by a variety of techniques including powder X-ray diffraction (XRD), 13C and 29Si solid-state NMR spectroscopy, thermogravimetric analysis (TGA) and nitrogen sorption measurements. In part two, well-ordered cubic mesoporous silica SBA-1 functionalized with disulfide functional groups have been synthesized via co-condensation of TEOS and Bis[3-(triethoxysilyl)propyl] disulfide (BTSPDS) templated by CTEABr under sulfuric acid condition. The materials obtained were characterized by a variety of techniques including powder X-ray diffraction (XRD), 13C and 29Si solid-state NMR spectroscopy, thermogravimetric analysis (TGA) and nitrogen sorption measurements. In part three, using the former two part’s samples to do the metal ion adsorption experiment. That can test the ability of adsorption Hg2+ metal ion.
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