The present work focuses on the design of a CO₂ scavenger, capable of adsorbing a low concentration of CO₂ from a mixed gas composition. Typically, vinyl imidazole and an ionic liquid brancher were copolymerized by “Strathclyde methodology” and grafted from graphene oxide; GO-g-(HB) PVIm-co-PIL (Cl). The chain transfer agent maintained short chains and developed hyperbranched architecture in GO-g-(HB) PVIm-co-PIL (Cl). The structure and the properties of GO-g-(HB) PVIm-co-PIL (Cl) was established from FTIR, ¹HNMR, Raman, XRD and rheology. A metathesis reaction was carried out to exchange chloride anions with hexafluorophosphate anions; GO-g-(HB) PVIm-co-PIL (PF₆). GO-g-(HB) PVIm-co-PIL (PF₆) selectively captured a low concentration of CO₂ from a mixed gas. The surface functionalities/ properties of GO, hyperbranched architecture, porosity, nitrogen content and surface charge distribution together played a significant role in efficient and selective CO₂ capture.

目前的工作集中在能够清除混合气体成分中低浓度的CO ₂的CO ₂清除剂的设计上。通常，乙烯基咪唑和离子液体支化剂通过“ Strathclyde方法”进行共聚，然后从氧化石墨烯接枝；GO-g-（HB）PVIm-co-PIL（Cl）。链转移剂在GO-g-（HB）PVIm-co-PIL（Cl）中维持短链并发展了超支链结构。通过FTIR，¹ HNMR，Raman，XRD和流变学建立了GO-g-（HB）PVIm-co-PIL（Cl）的结构和性质。进行复分解反应以将氯阴离子与六氟磷酸根阴离子交换；GO-g-（HB）PVIm-co-PIL（PF ₆）。GO-g-（HB）PVIm-co-PIL（PF ₆）选择性地从混合气体中捕获了低浓度的CO ₂。GO的表面功能/特性，超支化结构，孔隙率，氮含量和表面电荷分布在有效和选择性的CO ₂捕获中起着重要作用。