Method for preparing nanoscale mesoporous silica spheres

The invention relates to a method for preparing nanoscale mesoporous silica spheres, and the method belongs to the technical field of preparation of inorganic porous materials. The invention specifically relates to the synthesis of a series of mesoporous silica with different sphere diameters. The m...

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Bibliographic Details
Main Authors WANG JUN, LIU ANKANG, KONG YAN, DU JUN, LU YINONG, SUN PENG
Format Patent
LanguageChinese
English
Published 21.10.2009
Subjects
CHEMISTRY
COMPOUNDS THEREOF
INORGANIC CHEMISTRY
MANUFACTURE OR TREATMENT THEREOF
METALLURGY
NANOSTRUCTURES FORMED BY MANIPULATION OF INDIVIDUAL ATOMS,MOLECULES, OR LIMITED COLLECTIONS OF ATOMS OR MOLECULES ASDISCRETE UNITS
NANOTECHNOLOGY
NON-METALLIC ELEMENTS
PERFORMING OPERATIONS
TRANSPORTING
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Summary:The invention relates to a method for preparing nanoscale mesoporous silica spheres, and the method belongs to the technical field of preparation of inorganic porous materials. The invention specifically relates to the synthesis of a series of mesoporous silica with different sphere diameters. The method takes quaternary ammonium salt cationic surfactants with different carbon chain lengths, which are taken as template agents and adopts the sol-gel method for synthesis under alkaline conditions. The method is characterized in that mesoporous silica material particles are spherical, the sphere diameter is adjustable within the range of 40-400nm; the specific surface area is large, the particle size distribution is narrow; and the hole diameter is adjustable within the range of 1.9-4.0nm. The materials are widely applied in catalysis, separation, sensors, nano-reactors, optical materials and other aspects.
Bibliography:Application Number: CN200910027917