Engineering, Environmental
; Engineering, Chemical
WOS研究方向:
Engineering
英文摘要:
The development of new materials and technologies for CO2 capture has attracted a lot of interest due to the growing concerns about global warming and climate change. Herein, we prepared hierarchically porous materials from cheap precursors - polyaniline and polystyrene nanoparticles (PS NPs) using an easy and new concept based on the removal of the PS NPs during a pre-carbonization step followed by chemical activation. The pore size distribution was easily tuned by varying the size of the sacrificial PS NPs and the intensity of chemical treatment. We obtained an outstanding CO2 capture capacity of our optimum material (9.14 mmol g(-1) at 273.15 K and 1 bar). The findings suggest that these materials are promising CO2 sorbents and the approach provides a strategy to design new high-capacity polymer-based carbons for CO2 capture.