Preparation method of TiO2/montmorillonite intercalation compound
An interlayer compound, montmorillonite technology, applied in silicon compounds, chemical instruments and methods, inorganic chemistry, etc., can solve the problem of unreported montmorillonite interlayer compounds.
Inactive Publication Date: 2012-06-27
SOUTHWEAT UNIV OF SCI & TECH
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Preparation of TiO by Interlayer In Situ Hydrolysis 2 / The study of montmorillonite interlayer compound has not been reported yet
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[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
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The invention discloses a preparation method of a TiO2/montmorillonite intercalation compound, which is characterized in that an in-situ hydrolysation method and an in-situ nitrogen removal method are used for treating the butyl titanate-quaternary ammonium salt cation composited intercalation montmorillonite; analysis means of X-ray diffraction, Raman spectroscopy, transmission electron microscope and the like are used for representing a sample; an in-situ hydrolysation process, the nitrogen removal process and the morphology attributes of the formed TiO2/montmorillonite intercalation compound of butyl titanate in a montmorillonite intercalation domain are researched. Butyl titanate is hydrolyzed in the montmorillonite intercalation domain to form an amorphous compound-hydrated titanium dioxide; TiO2 nanoparticles with an anatase phase are formed after the calcining and removing nitrogen, and the TiO2/montmorillonite intercalation compound is formed. The invention provides a good idea for taking the montmorillonite intercalation domain as a nano reactor to prepare a novel mineral material.
Description
technical field [0001] The invention belongs to the field of nanocomposite materials, and relates to a method for preparing interlayer compounds of montmorillonite, in particular to a method for preparing TiO by interlayer in-situ reaction method 2 / Montmorillonite intercalation compound method. Background technique [0002] Montmorillonite is a 2:1 type layered structure silicate mineral, due to the heterovalent isomorphic substitution of tetrahedral and octahedral positions in the structural layer, the structural layer is negatively charged. This makes the interlayer domains of montmorillonite show negative electric field, filling the interlayer hydration cation layer to balance the electric price, and has exchangeability. Utilizing the cation exchange property of montmorillonite, the expandability and adsorption of the interlayer domain, the interlayer domain can be transformed and a variety of new functional materials can be obtained through modification, intercalation...
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IPC IPC(8): C01B33/40
Inventor 孙红娟彭同江刘海峰
Owner SOUTHWEAT UNIV OF SCI & TECH
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