Ca-Mg-Al layered double oxides were synthesized with different interlayer anions (chlorate,nitrate and acetate) by calcination of Ca-Mg-Al layered double hydroxides prepared via a simple hydrothermal method,in order to investigate the effect of interlayer anions on CO2 adsorption performances for Ca-Mg-Al layered double oxides.The structure,morphology and adsorption properties of the samples were analyzed by X-ray diffraction,scanning electron microscope and thermogravimetric analysis,respectively.The results showed that,the structure,morphology and adsorption properties of Ca-Mg-Al oxides synthesized under different interlayer anions were quite different.The adsorbent prepared with nitrate as precursor using urea of 72mmol for 12h at 120℃ had regular layered structure and excellent CO2 adsorption performance.
Niu Xiaodi, Yang Di, Li Rui, Feng Yanyan
. Influence of Ca-Mg-Al layered double oxide with different interlayer anions on CO2 adsorption performance[J]. New Chemical Materials, 2021
, 49(6)
: 206
-209
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.06.045
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