Functional green-based nanomaterials towards sustainable carbon capture and sequestration

Abstract Solid-phase adsorbents derived from functionalized green nanomaterials have recently gained significant attention for CO2 capture and sequestration (CCS) as they provide an eco-friendly and sustainable route for the removal of the carbon dioxide from the atmosphere. CO2 adsorbents formed from halloysite nanotubes (HNTs), nanofibrillated cellulose (NFC), carbonic anhydrase (CA) immobilized bio-inspired silica, green metal-organic frameworks, and bio-derived porous carbons are among the most widely studied nanomaterials for CCS applications. These materials can be modified in order to facilitate efficient CO2 adsorption with minimum energy requirement and maximum regeneration capacity. A wide range of studies including synthesis, functionalization, characterization, and CO2 adsorption/desorption performance of CO2 nanosorbents originated from green materials are covered in this chapter.