无机材料学报

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以嵌段共聚物为结构导向剂的SBA-15和SBA-16的合成及表征

诸荣1,2; 陈航榕1; 施剑林1; 严东生1   

  1. 1. 中国科学院上海硅酸盐研究所高性能陶瓷和超微结构国家重点实验室, 上海 200050; 2. 北京科技大学材料科学与工程学院, 北京 100083
  • 收稿日期:2002-07-09 修回日期:2002-08-16 出版日期:2003-07-20 网络出版日期:2003-07-20

Synthesis and Characterization of SBA-15 and SBA-16 Templated by Block Copolymers

ZHU Rong1,2; CHEN Hang-Hong1; SHI Jian-Lin1; VAN Dong-Sheng1   

  1. 1.State Key Lab of High Performance Ceramics and Superfine Microstructure; Shanghai Institute of Ceramics; Chinese Academy of Sciences; Shanghai 200050; China;2. Department of Materials Sciences & Engineering; University of Sciences and Technology; Beijing 100083; China
  • Received:2002-07-09 Revised:2002-08-16 Published:2003-07-20 Online:2003-07-20

摘要: 利用嵌段共聚物P123和F127分别在强酸性条件下合成了两种结构不同的介孔氧化硅材料:一维直孔道六方相的SBA-15和三维立方相的SBA-16,并通过XRD、N2吸附-脱附、HTEM等手段对材料进行了研究。结果表明:商品化的嵌段共聚物作为结构导向剂合成的介孔氧化硅材料SBA-15和SBA-16孔道规整有序,比表面积分别达到765m2·g-1和930m2·g-1,相应的最可几孔径分别为6.46nm和3.92nm,这有利于介孔材料向经济实用方向发展。

关键词: 合成, 嵌段共聚物, 介孔氧化硅

Abstract: Two different structures of mesoporous silica materials SBA-15 (P6mm) and SBA-16 (Im3m) were
synthesized by using commercial block copolymers P123 and F127 as structure-directing agents correspondingly under acidic conditions. The
characteristics of samples were investigated by using XRD, N2 adsorption-desorption, and HTEM techniques. The results show that the
resulted mesoporous materials SBA-15 and SBA-16 are highly ordered materials. Their highest BET surface areas are respectively around
765m2·g-1 and 930m2·g-1. The pore diameters are 6.46nm and 3.92nm correspondingly. This means the synthesized mesoporous
materials have potential applications in functional and economic materials.

Key words: synthesis, block copolymers, mesoporous silica materials

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