燃料化学学报2016，Vol.44Issue(8)：1017-1024,8.
类水滑石Ti/Li/Al-LDHs的制备及其CO2吸附性能
Preparation of hydrotalcite-like Ti/Li/Al-LDHs and its performance in CO2 adsorption
摘要
Abstract
A series of hydrotalcite-like Ti/Li/Al-LDHs materials were prepared by co-precipitation method and characterized by atomic absorption spectrophotometer ( AAS ) , X-ray diffraction ( XRD ) , scanning electron microscopy ( SEM) , thermal gravimetric analysis ( TG) and Fourier transform infrared ( FT-IR); the influence of metal composition and calcination temperature on the structure, morphology and CO2 adsorption capacity of Ti/Li/Al-LDHs was investigated. The results showed that Ti1 Li3 Al4-LDHs obtained with a Ti/Li/Al ratio of 1:3:4 displays the highest crystallinity and regular morphology, whereas Ti1 Li3 Al2-LDHs300 prepared with a Ti/Li/Al ratio of 1:3:2 and calcined at 300℃ exhibits the best adsorption performance towards CO2 . The CO2 adsorption capacity over Ti1 Li3 Al2-LDHs300 reaches 53. 5 mg/g; in addition, the adsorption capacity is only decreased by 2. 4% after adsorption for 10 cycles.关键词
水滑石/Ti/Li/Al-LDHs/金属元素/焙烧/二氧化碳/吸附Key words
layered double hydroxides/Ti/Li/Al-LDHs/metal element/calcination/carbon dioxide/adsorption分类
化学化工引用本文复制引用
孔婷婷,董羿蘩,张颖萍,张亚刚,周安宁..类水滑石Ti/Li/Al-LDHs的制备及其CO2吸附性能[J].燃料化学学报,2016,44(8):1017-1024,8.基金项目
The project was supported by the National Nature Science Foundation of China (51074122).国家自然科学基金(51074122)资助 （51074122）
