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化学学报
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化学学报 ›› 2004, Vol. 62 ›› Issue (11): 1049-1054. 上一篇    下一篇

研究论文

新型无机/有机复合柱撑粘土材料的合成与表征

原小涛1, 余江2, 刘会洲2, 李文军1   

  1. 1. 北京科技大学应用化学学院, 北京, 100083;
    2. 中国科学院过程工程研究所分离科学与工程室, 北京, 100080
  • 投稿日期:2003-10-09 修回日期:2004-02-15 发布日期:2014-02-17
  • 通讯作者: 余江,Email:jyu@home.ipe.ac.cn E-mail:jyu@home.ipe.ac.cn
  • 基金资助:
    国家自然科学基金(Nno.50244021)资助项目.

Synthesis and Characterization of Novel Organic/Inorganic Pillared Clays

YUAN Xiao-Tao1, YU Jiang2, LIU Hui-Zhou2, LI Wen-Jun1   

  1. 1. Laboratory of Separation Sciences & Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100080;
    2. Department of Applied Chemistry, Beijing University of Sciences and Technology, Beijing 100083
  • Received:2003-10-09 Revised:2004-02-15 Published:2014-02-17

PDF

894

被引次数

98

以无机Ti4/HCl制成的钛基柱撑液和十六烷基三甲基溴化胺(CTAB)为有机改性液,通过控制两种柱撑液的加入顺序以及相对含量,利用蒙脱石粘土矿物层间域的特殊化学反应场所的特性,合成得到三类复合柱撑蒙脱石材料.X射线衍射结果表明,doo1晶面由于CTAB与钛基水合离子的相互作用形成粒度不同的柱撑空间而表现为两个峰值.与FT-IR光谱相比,FF-Raman光谱能够更加有效地表征和鉴定复合柱撑粘土的结构差别.采用原土无机柱撑后再有机柱撑,可以合成层间距更大的复合柱撑粘土材料.经热处理后得到锐钛型氧化钛的改性粘土材料,并且可以重新合成得到无机/有机复合柱撑的新型改性粘土材料.这些合成手段为制备新型改性粘土材料应用于环保以及化工等方面提供了借鉴.

关键词: 蒙脱石, 复合柱撑粘土, XRD, FTRaman

Montmorillonite interlayer is a special site in chemical reaction for absorption and photolysis. Three kinds of Ti/CTAB (cetyltrimethylammonium bromide) pillared clays were synthesized by controlling the addition sequences and amounts of the Ti and CTAB pillar agents. The X-ray results indicated that the pillared clays by Ti/CTAB pillar agents gave two d 001 values, which may be attributed to the different pillar sizes formed in the clay interlayer due to the interaction of hydrolyzed Ti-polycations and CTAB. Additionally, compared with FT-IR spectroscopy, FT Raman is a powerful analytic tool for characterizing the chemical structures of the pillared clays. After being heated at 500℃ for 1 h, the pillared POMT(A) can be changed to the composite containing anatase TiO2, and then CTAB could be introduced again for preparing a new TiO2/CTAB pillared clay. It is expected that this new material could be developed as potential environmental materials for absorbing and photolyzing organic pollutants from water.

Key words: montmorillonite, composite pillared clay, XRD, FT-Raman