Graphene and its tailoring as emerging 2D nanomaterials in efficient CO₂ absorption: A state-of-the-art interpretative review

Carbon Dioxide (CO₂) Capture, Utilization and Storage (CCUS) has been introduced as the solution for increasing CO₂, affecting many stakeholders. The improvement of the performance of the most mature technology among the CCUS technologies: Absorption, has been the main interest through various approaches, such as nanosuspension and ionic liquids (ILs), resulting in the emergence of nanotechnology and its unique advantages in various fields. This review aims to introduce the application of emerging 2D structured graphene-based materials in CO₂ absorption. This review addresses the past five years’ application of graphene-based nanomaterials, covering the forms, characterization, and synthesis methods and means of administration (such as capsulated and nanofluids). Graphene-based materials' influence on CO₂ absorption is summarized with graphical presentations and discussed. The results indicated that graphene-based materials are suitable for application in CO₂ absorption either as suspension or support, which boosts absorption performances. Finally, challenges and future works are summarized.