摘要
通过物理浸渍法利用有机胺(聚乙烯亚胺)对膨润土进行改性,然后利用X射线衍射、N2吸附脱附实验、元素分析等手段对膨润土改性前后材料的物理化学属性进行表征,最后考察了材料对CO2气体的吸附性能.结果表明,利用有机胺对膨润土进行改性后,材料对CO2气体的吸附量明显增加(从6 mg/g增至47 mg/g),且在循环使用中材料的稳定性良好.
Bentonite was modified by an organic amine （ polyethylenimine ） through a physical impregnation meth-od .Physical and chemical properties of samples were characterized by X-ray diffraction （ XRD） , N2 adsorption-desorp-tion measurement , and elemental analysis .CO2 adsorption performances of samples were finally investigated .It was demonstrated that CO 2 adsorption capacity of bentonite was significantly improved after amine modification from 6 mg/g to 47 mg/g.Furthermore, the amine-modified bentonite was very stable in the cyclic CO 2 adsorption-desorption ex-periments .
出处
《信阳师范学院学报（自然科学版）》
CAS
北大核心
2014年第1期80-83,共4页
Journal of Xinyang Normal University(Natural Science Edition)
基金
河南省科技计划项目(102102210505)
信阳师范学院博士科研启动基金项目
