Carbon dioxide trapping material and preparation method thereof

• Main Authors: XIONG JIBING, WANG FANGTIAN, LIN YICHAO, BAI XIANGYU, GUO KAIYUE, SONG, JUNG KYU, QU HAN
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a carbon dioxide trapping material and a preparation method thereof, and relates to the technical field of environmental governance. The method comprises the following steps: mixing a suspension of graphene oxide with alkali, and carrying out hydrothermal reaction to obtain alkaline graphene hydrogel; pre-freezing the alkaline graphene hydrogel, and then carrying out vacuum freeze drying treatment to obtain alkaline aerogel; dipping the alkaline aerogel in a mixed solution of styrene and glycidyl methacrylate, and carrying out a reaction under a vacuum condition to obtain alkaline aerogel loaded with epoxy groups; and dropwise adding ethylenediamine to the surface of the epoxy group-loaded alkaline aerogel to completely wet the epoxy group-loaded alkaline aerogel, and reacting to obtain the carbon dioxide trapping material. According to the carbon dioxide trapping material prepared through reasonable process steps, due to improvement of alkalinity and modification of organic amine, the