The rising negative effects of climate change are caused mainly by the increase of atmospheric carbon dioxide concentrations, calling for advanced technologies to extract carbon dioxide from atmospheric air. Here we review carbon dioxide capture from atmospheric air by amine-functionalized silica composites with emphasis on development principles, mechanisms, absorbent criteria, performance determination, and preparation techniques. Amine-silica absorbent preparation for carbon dioxide capture is done by impregnation, chemical graphting, hybrid functionalization, and in situ polymerization. High costs, poor performance, and scalability are actually posing challenges for large-scale deployment.

气候变化带来的负面影响日益增加，主要是由于大气中二氧化碳浓度的增加，需要先进的技术从大气中提取二氧化碳。在这里，我们回顾了胺功能化二氧化硅复合材料从大气中捕获二氧化碳的过程，重点介绍了开发原理、机制、吸收剂标准、性能测定和制备技术。用于二氧化碳捕获的胺-二氧化硅吸收剂的制备是通过浸渍、化学作图、混合官能化和原位聚合来完成的。成本高、性能差、可扩展性差，实际上给大规模部署带来了挑战。