Method for regulating and controlling sizes of mesoporous organic silicon dioxide nanoparticles

By regulating the dosage of TEA through the sol-gel method, the problem of difficult-to-control size of mesoporous organic silica nanoparticles was solved, and uniformity regulation in the range of 40-130 nm was achieved, expanding its application in biomedicine, energy catalysis and environmental remediation.

CN120589760APending Publication Date: 2025-09-05WUHAN UNIV OF TECH
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Patent Information

Application Number
CN202510708335.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2025-09-05

AI Technical Summary

Technical Problem

Existing technologies make it difficult to achieve large-scale regulation of the size of mesoporous organic silica nanoparticles, resulting in limited efficiency in different application scenarios.

Method used

Through the sol-gel method, triethanolamine (TEA) was used as a catalyst to regulate the ratio and reaction conditions of TEOS and bis[3-(triethoxysilyl)propyl] disulfide (BTESPD). After forming small seeds, co-condensation continued on the seed surface to achieve size control of mesoporous organic silica nanoparticles.

Benefits of technology

The uniform regulation of the size of mesoporous organic silica nanoparticles in the range of 40-130 nm has been achieved, providing a wider range of application possibilities, such as biomedicine, energy catalysis and environmental remediation.

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Abstract

The invention provides a method for regulating and controlling the size of mesoporous organic silicon dioxide nano-particles, and belongs to the field of nano device preparation, the method regulates and controls the size of the mesoporous organic silicon dioxide nano-particles by controlling the dosage of triethanolamine, and the method specifically comprises the following steps: dropwise adding triethanolamine into an aqueous solution in which a template agent is dissolved; dropwise adding TEOS (tetraethyl orthosilicate) and stirring for reaction; dropwise adding a mixture of BTESPD and TEOS into the reaction product, and stirring for reaction; and washing the obtained product and removing the template agent in the product. According to the method, the size of the mesoporous organic silicon dioxide nanoparticles can be regulated and controlled within the range of 40-130 nm by regulating and controlling the content of triethanolamine in a reaction system, the preparation method is simple, and the prepared product is uniform in morphology and particle size, has macro preparation potential and has a good application prospect.
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