摘要
由于介孔材料具有比表面积大和空隙较多等优点,被广泛地应用于对空气中或工业废气中的CO2的吸附.活性炭、沸石、硅胶等传统的吸附剂具有制备方法简单、制造工艺成熟、成本低廉等优点,是吸附空气中CO2的首选材料,但较强的吸湿性使其不能用于高湿度的吸附环境等,而通过对传统的介孔材料进行表面改性,接枝胺类等碱性物质,将单纯的物理吸附转变为物理吸附和化学吸附共同作用的吸附方式,在改善吸附剂适应环境能力的同时也能增加吸附量.开发具有最佳结构且物理及化学性能稳定的功能复合吸附剂将是该领域的研究热点和主要方向.
In recent years,mesoporous materials have been widely used for the adsorption of CO2 in air and industrial exhaust gases because of their advantages such as extra-high specific surface area and regular pore diameters.The traditional solid adsorbents such as activated carbon,sllica gel,zeolite have advantages inculding simple perparation,mature technique and low cost,they are preferred materials,but they can＇t be used to high humidity adsorption environment due to high hygroscopicity,while through surface modification and stem grafting alkaline substance such as amine for traditional mesoporous materials,It will change the adsorption pattern from simple physical adsorption to physicochemical adsorption,thus it improve ability to adapt to the enivronment for adsorbent and also increase adsorption capacity.The future research field will focus on developing on complex adsorbent with optimum structure and steady physicochemical property.
出处
《郑州轻工业学院学报（自然科学版）》
CAS
2011年第5期107-111,共5页
Journal of Zhengzhou University of Light Industry:Natural Science
基金
国家自然科学基金项目(20976168)
河南省高校科技创新人才支持计划项目(2008HASTIT019)
