The intercalation of cetyltrimethylammonium cations into muscovite by a two-step process: I. The ion exchange of the interlayer cations in muscovite with Li{sup +}

Journal Article · Mon May 15 04:00:00 EDT 2006 · Journal of Solid State Chemistry

OSTI ID:20785024

Xiaofeng, Yu ^[1]; Liyan, Zhao ^[1]; Xiuxiang, Gao ^[2]; Xiaoping, Zhang ^[3]; Nianzu, Wu ^[1]

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1. State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Physical Chemistry, Peking University, Beijing 100871 (China)
2. Laboratory Center, Research Institute of Petroleum Exploration and Development, PetroChina, P.O. Box 910, Beijing 100083 (China)
3. Electron Microscopy Laboratory, Peking University, Beijing 100871 (China)

A new method to prepare alkylammonium ions-intercalated muscovite is reported. It has been obtained in a two-step process: the first step is the inorganic ion exchange, which allows the ion exchange of interlayer cations in muscovite with Li{sup +} in a melting condition of LiNO{sub 3}. It was found that in the LiNO{sub 3} treatment process most of the interlayer cations were replaced by Li{sup +}, and a large amount of water entered the interlayer space of muscovite. Therefore the spacing of muscovite (001) plane d {sub (001)} was enlarged from 19.92 to 24.16 A, which could allow for the intercalation of organic cations. SEM shows that the LiNO{sub 3} treatments have little effect on the size of muscovite platelets. TEM and FTIR confirm that not only the chemical composition but also the structure of the aluminosilicate layer has not been changed by the LiNO{sub 3} treatments.

• OSTI ID: 20785024
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 5 Vol. 179; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
AMMONIUM COMPOUNDS
CATIONS
FOURIER TRANSFORMATION
INFRARED SPECTRA
ION EXCHANGE
LAYERS
LITHIUM IONS
LITHIUM NITRATES
MUSCOVITE
SCANNING ELECTRON MICROSCOPY
SILICATES
TRANSMISSION ELECTRON MICROSCOPY