Patent ID: 11965070
Assignee: EAST CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C | IPC C

Claim 2:
3. The method according to claim 2, wherein, the amino-functionalized triple-shelled mesoporous silica hollow spheres are prepared by:
mixing aqueous ammonia, a porogen, anhydrous ethanol, and water to form a mixture, to which tetraethyl orthosilicate and 1,2-bis(triethoxysilyl)ethane are added in three portions to conduct a sol-gel reaction so as to obtain triple-shelled silica solid spheres;
subjecting a mixture of the obtained triple-shelled silica solid spheres and water to a hydrothermal reaction and then to calcination, so as to obtain triple-shelled mesoporous silica hollow spheres; and
mixing the obtained triple-shelled mesoporous silica hollow spheres with anhydrous ethanol and an amination agent for amino modification so as to obtain the amino-functionalized triple-shelled mesoporous silica hollow spheres.