控制密闭空间CO2浓度是保障人员生命安全的必要措施。采用多孔材料吸附脱除CO2是一种成熟的方法，其关键在于高效吸附材料的研究。本项目拟设计合成沸石咪唑酯骨架（ ZIFs ）@SBA-15复合吸附材料，利用ZIFs所含的碱性有机配体，提高吸附材料的CO2吸附量和选择性；利用SBA-15材料的“保护作用”，提高吸附材料的稳定性和机械强度。通过调变SBA-15载体的孔尺寸和表面性质，合成系列ZIFs@SBA-15复合材料，利用各种表征、测试手段分析材料的组成、结构和CO2吸附性能；研究载体性质对ZIFs“限域”生长的影响机制；揭示吸附材料的“构效关系”。本项目的顺利实施，将形成ZIFs@SBA-15吸附材料的优化设计理论，丰富功能化介孔材料的种类，为开发高效CO2吸附材料奠定理论基础。

In order to ensure the human safety, it is essential to control the CO2 concentration in confined space. The development of processes based on solid adsorbents has been proposed as alternative separation technologies for CO2 capture. In this proposal, Zeolite imidazolate frameworks (ZIFs)@SBA-15 hybrid material is prepared by using SBA-15 as a matrix. The growth of ZIFs inside the pores of SBA-15 is expected to enhance the adsorption capacity and selectivity of CO2. Meanwhile, SBA-15 serves as a shell, which is beneficial to improve the stability of the adsorbent. The study is conducted to explore a new way to synthesize adsorbents with good performance through adjusting the pore size and surface properties of support. The composition and textural properties of the as-prepared materials would be examined by XRD, N2 adsorption-desorption isotherms, element analysis and SEM et al. According to the results, the novel and efficient method of preparing the ZIFs@SBA-15 adsorbent will be developed. Furthermore, the mechanism of ZIFs growth inside the pores of SBA-15 will be investigated, and the relationships between composition, structure and the CO2 adsorption performance of the hybrid material will also be explored. The results obtained in this project may develop a new theory for optimization design of ZIFs@SBA-15 adsorbent, enrich the species of functional mesoporous material, and thus establish theoretical foundation for the development of highly efficient CO2 adsorbent material.