The present paper reports our current approach in development of 'molecular basket' sorbents (MBS) using three-dimensional mesoporous materials including MCF, HMS, and MSU-J as the �basket� matrix and polyethylenimine (PEI) as the CO2-phylic sites. The prepared  three-dimensional  MBS (3D-MBS) have been evaluated for CO2 capture, in comparison with 1-D or 2-D MBS, i.e., SBA-15- and MCM-41-based MBS. It was found that 3-D MBS exhibited some clear advantages. A sorption capacity of 201 mg-CO2/g-sorb was obtained on the 3D-MBS with 65 wt% PEI loaded on MCF, which is 61 and 32 % higher than that of MCM-41- and SBA-15-based MBS, respectively. The sorption rate of the MCF-based MBS was also increased significantly. The results indicate that the MCF-based MBS is a promising sorbent for CO2 capture. In addition, the MCF-based MBS may also be applied as a solid CO2-carrier for CO2 transportation and temporary storage at ambient condition.

CO<sub>2</sub> capture over molecular basket sorbents: Influence of 3D mesoporous matrix

244th National Meeting (2012)

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CO2 capture over molecular basket sorbents: Influence of 3D mesoporous matrix

CO₂ capture over molecular basket sorbents: Influence of 3D mesoporous matrix