The project objective is to provide a viable basic immobilized amine sorbent (BIAS)-based hollow chemisorption fiber sorbent (hollow-CHEFS) demonstrating carbon dioxide (CO2) capture in diluted environments with a concentration near 400 parts per million (ppm). The hollow-CHEFS target is to achieve a 0.3 mmol CO2/g capacity that is highly stable over at least three adsorption-desorption cycles. The resulting data will be used to complete a techno-economic analysis (TEA) to evaluate the feasibility of a rapid temperature swing adsorption (RTSA) process using the hollow-CHEFS.