硅酸盐学报

一步法合成含硫醚基和乙烷基的介孔有机氧化硅空心球

单位：1. 中北大学材料科学与工程学院太原 030051 2. 清华大学材料学院新型陶瓷与精细工艺国家重点实验室北京 100084

关键词：氧化硅空心球介孔材料有机基团一步法

分类号：TB32

出版年,卷(期):页码：2017,45(4):518-522

DOI：10.14062/j.issn.0454-5648.2017.04.09

摘要：

利用有机硅源1,2–二(三氧基硅基)乙烷和双–[3–(三乙氧基硅)丙基]四硫化物，通过微乳液体系常温常压一步合成了含有双有机功能基团的纳米级介孔氧化硅空心球。合成的氧化硅空心球不仅具有球形形貌、均匀粒径(75~135 nm)、空腔结构(10~25 nm)和介孔结构(2.70 nm)，高比表面积(1 465 m2/g)和孔体积(1.38 cm3/g)，更重要的是，其含有的─C─C─和─S─S─键赋予材料更好的生物相容性和其他特殊的功能性。

The hollow periodic mesoporous organosilica sphere (HPMOSs) with thioether-bridged and ethylene-bridged in framework was fabricated by a one-step method at room temperature with bis(trimethoxysilyl) ethane (BTSE) and bis [3-(triethoxysilyl)propyl] tetrasulfide (TESPTS) as organosilica sources. The obtained HPMOSs possess a well-defined spherical morphology, uniform particles of 75–135 nm, nano-sized hollow cavity of 10–25 nm and ordered mesoporous of 2.70 nm, great specific surface area (1 465 m2/g) and pore volume (1.38 cm3/g). The multifunctional organic groups of ─C─C─ and ─S─S─ are distributed in the silica framework. This one-step method provides a strategy for synthesizing nanosized HPMOSs under normal conditions without any procedure to remove the core template, and is of potential for industrial production due to its simple process, short reaction time and low cost.

基金项目：

国家自然科学基金(51572140)；中国博士后科学基金(2015M581089)。

作者简介：

刘文婷(1990—)，女，硕士研究生。

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