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Preparation and enantiosorption of L-aspartic acid pillared hydrotalcites

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Abstract

L-aspartic acid (Asp) pillared hydrotalcites were prepared by direct reaction of the L-Asp anion with layered double hydroxides (LDHs). The obtained samples were characterized by X-ray diffractometry (XRD), Fourier transform infrared (FTIR), and thermogravimetric and differential thermal analysis (TG/DTA). The results show that the initial interlayer carbonate ions can be completely replaced by the L-Asp anion under the controlled conditions. The pillared hydrotalcites have a crystallized supramolecular structure and thermal stability. The L-Asp pillared LDHs were used in the enantiosorption of enantiopure phenylalanine (Phe), the results suggest that L-Asp pillared LDHs exhibit an excellent enantiosorption capability for D-Phe, and the adsorption isotherm fits Freundlich equation.

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Authors and Affiliations

  1. Department of Chemistry and Environment Science, Changsha University, Changsha, 410003, China

    Peng Xia-hui Doctorial candidate  (彭霞辉) (Professor)

  2. School of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China

    Peng Xia-hui Doctorial candidate  (彭霞辉) (Professor) & Huang Ke-long  (黄可龙)

Authors
  1. Peng Xia-hui Doctorial candidate  (彭霞辉)
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  2. Huang Ke-long  (黄可龙)
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Correspondence to Peng Xia-hui Doctorial candidate  (彭霞辉).

Additional information

Foundation item: Project(20376085) supported by the National Natural Science Foundation of China; Project(05C053) supported by Education Department of Human Province, China

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Peng, Xh., Huang, Kl. Preparation and enantiosorption of L-aspartic acid pillared hydrotalcites. J Cent. South Univ. Technol. 14, 520–523 (2007). https://doi.org/10.1007/s11771-007-0101-5

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  • DOI: https://doi.org/10.1007/s11771-007-0101-5

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