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干,湿态单/双链表面活性剂柱撑蒙脱石层间微结构及分子环境比较
Compare of the Interlayer Microstructure and Molecular Environment of Single/Double Alkyl Chains Surfactant Pillared Montmorillonite under Dry or Wet State

查看参考文献22篇

朱建喜 1   马月红 2   卿艳红 1   沈伟 1   魏景明 1   袁鹏 1   何宏平 1  
文摘 以含不同烷基碳链长度(8,12或16个碳原子)的单/双链阳离子表面活性剂对内蒙蒙脱石样品进行了柱撑改性.用XRD和FTIR方法研究了柱撑改性后干,湿样品的层间微结构和分子环境.单链柱撑样品中,烷基链长度增加,柱撑高度也增大.湿样的柱撑高度大多高于干样品,衍射图峰形更为规整,柱撑结构更为均一;双链柱撑样品也是柱撑高度与烷基链长度正相关,但其湿样品的底面间距反而小于干样品.同时,亚甲基伸缩振动的变化趋势与层间距的变化趋势基本一致,即当烷基链长度或数目增加时,有机蒙脱石层间有机相分子的环境更接近于似固态
其他语种文摘 The organic pillared montmorillonite were synthesized by using the cationic surfactant with different alkyl chain length and chain numbers. According to the XRD results, the basal spacing of the organic montmorillonites modified by a single alkyl chain surfactant increase with increase of the length of alkyl chains, and the wet samples own the higher basal spacing than that of the dry samples. The XRD patterns of wet samples were sharper than that of the dry samples, which means a more uniform structure in the wet organic montmorillonites. For the organic montmorillonite which pillared by surfactant with double alkyl chains, the basal spacing were in direct proportion to the length of alkyl chains, but the wet samples of with double chains own the smaller basal spacing that dry samples. The FTIR spectra showed that both antisymmetric and stretching CH2 absorption bands shift to lower frequencies with the increase of surfactant loading, alkyl chain's length and number of chains, which elucidate the increase of ordered conformation. Also, the present study demonstrates that the alkyl chain length and number have effect on the molecular environment
来源 矿物岩石地球化学通报 ,2011,30(1):46-52 【扩展库】
关键词 有机柱撑蒙脱石 ; 单/双链 ; 微结构 ; 分子环境 ; 干,湿态
地址

1. 中国科学院广州地球化学研究所, 广州, 510640  

2. 中国科学院宁波材料技术与工程研究所, 浙江, 宁波, 315201

语种 中文
文献类型 研究性论文
ISSN 1007-2802
学科 地质学
基金 国家自然科学基金资助项目 ;  国家863计划
文献收藏号 CSCD:4156305

参考文献 共 22 共2页

1.  Zhu L Z. Sorption of phenol, p-nitrophenol, and aniline to dual-cation organobentonites from water. Environmental Science & Technology,2000,34(3):468-475 被引 32    
2.  Zhu L Z. Interactions of organic contaminants with mineral-adsorbed surfactants. Environmental Science &Technology,2003,37(17):4001-4006 被引 14    
3.  Boyd S A. Sorption characteristics of organic compounds on hexadecyltrimethylammoniumsmectite. Soil Science Society of America Journal,1988,52(3):652-657 被引 27    
4.  Sheng G Y. Mechanism(s) controlling sorption of neutral organic contaminants by surfactant-derived and natural organic matter. Environmental Science & Technology,1996,30(5):1553-1557 被引 7    
5.  Sheng G Y. Cosorption of organic contaminants from water by hexadecyltrimethylammonium-exchanged clays. Water Research,1996,30(6):1483-1489 被引 8    
6.  吴平霄. 不同链长季铵盐柱撑新疆蛭石的层间结构分析. 华南理工大学学报(自然科学版),2006,34(5):15-19 被引 9    
7.  吴伟民. TDTMA~+-柱撑蒙脱石吸附硝基苯的实验研究. 矿物岩石,2008(2):17-21 被引 4    
8.  朱建喜. HDTMA~+柱撑蒙脱石层间有机离子的排布模式及演化. 科学通报,2003,48(3):302-306 被引 19    
9.  朱建喜. HDTMA~+柱撑离子空间几何尺寸与柱撑蒙脱石层间排列方式的研究. 矿物岩石,2003,23(4):1-4 被引 16    
10.  朱建喜. 不同链长烷基季铵离子在蒙脱石层间域内排列方式的对比. 矿物学报,2003,23(3):193-198 被引 19    
11.  何宏平. HDTMA^ 柱撑蒙脱石的^C MAS NMR谱研究. 矿物岩石地球化学通报,2003,22(1):18-22 被引 4    
12.  Zhu J X. Arrangement models of alkylammonium cations in the interlayer of HDT-MA+pillared montmorillonites. Chinese Science Bulletin,2003,48(4):368-372 被引 12    
13.  Zhu J X. Characterization of organic phases in the interlayer of montmorillonite using FTIR and C-13 NMR. Journal of Colloid and Interface Science,2005,286(1):239-244 被引 5    
14.  Ma Y H. Infrared investigation of organo-montmorillonites prepared from different surfactants. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2010,76(2):122-129 被引 3    
15.  Vaia R A. Interlayer structure and molecular environment of alkylammonium layered silicates. Chemistry of Materials,1994,6(7):1017-1022 被引 38    
16.  He H P. Conformation of surfactant molecules in the interlayer of montmorillonite studied by13C MAS NMR. Clays and Clay Minerals,2004,52(3):350-356 被引 6    
17.  Chen B L. Configurations of the bentonite-sorbed myristylpyridinium cation and their influences on the uptake of organic compounds. Environmental Science & Technology,2005,39(16):6093-6100 被引 16    
18.  Zhu J X. Microstructure of organo-bentonites in water and the effect of steric hindrance on the uptake of organic compounds. Clays and Clay Minerals,2008,56(2):144-154 被引 4    
19.  Dekany I. Liquid sorption on n-alkylammonium-montmorillonites. I. Adsorption of liquid mixtures and immersional wetting on the organocomplexes. Magyar Kemiai Folyoirat,1985,91(7):289-296 被引 1    
20.  Dekany I. Time-dependent changes of adsorption and wetting properties of pillared montmorillonites. Clay Minerals,2000,35(5):763-769 被引 1    
引证文献 1

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