Preparation method of composite hollow silicate

Abstract

The invention provides a preparation method of composite hollow silicate, which relates to silicate. The invention provides the preparation method of the composite hollow silicate which has simpler process and is synthesized under the heat condition of a solvent. The preparation method comprises the following steps of: adding water and ethanol into MaSiO2, urea and nitrate hexahydrate and keeping constant temperature at the temperature of 170 to 190 DEG C for 4 to 36h, wherein the mixture ratio of the MaSiO2 to the urea is 1:(13.5 to 27) according to the mass ratio, the mixture ratio of magnesium nitrate hexahydrate to the urea is 1:(30 to 100) according to the mole ratio, and M is metal, metal oxide or metal oxide / metal; and after cooling a reaction product obtained in the step (1) to room temperature, washing the obtained solid product so as to obtain a target product of the composite hollow silicate.

Description

technical field

[0001] The invention relates to a silicate, in particular to a method for preparing a composite hollow silicate by solvothermal. Background technique

[0002] With the development of nanomaterials, submicron / nanoscale hollow materials have attracted more and more attention. Hollow materials are expected to have broad applications in catalysis, controlled release, and sewage treatment. Composite hollow materials not only have the properties of hollow materials, but also introduce the interior of hollow materials into other different types of materials. By changing the inner core, they can open up distinctive properties, and have a wide range of applications in many fields such as chemistry, physics and materials science. prospect. In recent years, there has been a great deal of research on the synthesis of composite hollow materials. However, the synthesis of composite hollow materials often requires a lot of complicated processes, and is often accompanied ...

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