Organic amine-loaded silicon-based aerogel, and preparation method and application thereof

• Main Authors: HAN MEIYU, LIN ZEQING, CHEN XINDI, CHEN HAIFENG, YANG XIANGHUA
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2019
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; WORKING-UP

The invention belongs to the technical field of efficient adsorption materials, and particularly relates to organic amine-loaded silicon-based aerogel, and a preparation method and an application thereof. The preparation method comprises the steps: mixing aminopropyltrimethoxysilane, ethanol and H2O, carrying out a hydrolysis reaction, adding tetraethoxysilane, carrying out a stirring reaction, and carrying out freezing treatment to obtain an alcohol gel; and standing the alcohol gel, and drying at normal pressure to obtain the organic amine-loaded silicon-based aerogel. The prepared organic amine-loaded silicon-based aerogel is a nano material with a three-dimensional network structure; the organic amine-loaded silicon-based aerogel has the advantages of light weight, low density, high specific surface area, high porosity, uniform pore size distribution, surface chemical customization and the like, can be used as a CO2 adsorbent with excellent performance after being loaded with organic amine, and can effici