Preparation of hydrotalcite-like Ti/Li/Al-LDHs and its performance in CO<sub>2</sub> adsorption

KONG Ting-ting; DONG Yi-fan; ZHANG Ying-ping; ZHANG Ya-gang; ZHOU An-ning

Volume 44 Issue 8

Aug. 2016

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KONG Ting-ting, DONG Yi-fan, ZHANG Ying-ping, ZHANG Ya-gang, ZHOU An-ning. Preparation of hydrotalcite-like Ti/Li/Al-LDHs and its performance in CO2 adsorption[J]. Journal of Fuel Chemistry and Technology, 2016, 44(8): 1017-1024.

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KONG Ting-ting, DONG Yi-fan, ZHANG Ying-ping, ZHANG Ya-gang, ZHOU An-ning. Preparation of hydrotalcite-like Ti/Li/Al-LDHs and its performance in CO₂ adsorption[J]. Journal of Fuel Chemistry and Technology, 2016, 44(8): 1017-1024.

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Preparation of hydrotalcite-like Ti/Li/Al-LDHs and its performance in CO₂ adsorption

College of Chemistry and Chemical Engineering, Xi'an University of Science and Technology, Xi'an 710054, China

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Corresponding author: Tel: 13609282106, E-mail: psu564@139.com
Received Date: 2016-04-07
Rev Recd Date: 2016-06-18

Available Online: 2021-01-23

Publish Date: 2016-08-10

Abstract

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 Ti₁Li₃Al₄-LDHs obtained with a Ti/Li/Al ratio of 1:3:4 displays the highest crystallinity and regular morphology, whereas Ti₁Li₃Al₂-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 Ti₁Li₃Al₂-LDHs₃₀₀ reaches 53.5mg/g; in addition, the adsorption capacity is only decreased by 2.4% after adsorption for 10 cycles.
- layered double hydroxides,
- Ti/Li/Al-LDHs,
- metal element,
- calcination,
- carbon dioxide,
- adsorption

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References(26)

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