Preparation and enantiosorption of L-aspartic acid pillared hydrotalcites

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.

Keywords

L-aspartic acid / hydrotalcites / preparation / enantiosorption / phenylalanine

References

[1] YouY.-w., ZhaoH.-t., VanveG. F.. Adsorption of dicamba (3, 6-dichloro-2-methoxy benzoic acid) in aqueous solution by calcined-layered double hydroxide[J]. Applied Clay Science, 2002, 21: 217-226

[2] GardnerE. A., YunS. K., KwonT., et al.. Layered double hydroxides pillared by macropolyoxometalates[J]. Applied Clay Science, 1998, 13: 479-494

[3] AisawaS., TakahashiS., OgasawaraW.. Direct intercalation of amino acids into layered double hydroxides by coprecipitation[J]. Journal of Solid State Chemistry, 2001, 162: 52-62

[4] ZhuZ.-l., GaoJ.-y., LiF.-t., et al.. The study of adsorption of L-aspartic acid on silver sol by surface-enhanced Raman scattering[J]. Spectroscopy and Spectral Analysis, 2004, 24(1): 68-70

[5] LiuY., QiaoS.-s., LiJ.-you.. Microwave assisted rapid racemization of L-Phenylalanine[J]. Chemical Industry and Engineering Progress, 2005, 24(8): 893-900

[6] ZhaoY., JiaoQ.-z., EvansD. G., et al.. Control of particle size of layered double hydroxides using non-equilibrium aging conditions[J]. Chinese Journal of Inorganic Chemistry, 2001, 11(6): 830-834

[7] CAIT E, PHEE M, WOOLFSON D N. Engineered and designed peptide-based fibrous biomaterials[J]. Current Opinion in Solid State and Materials Science, 2004 (8): 141–149.

[8] MaoX.-z., Yangp., XieL.-m., et al.. Sorption of an anionic dye by uncalcined and calcined layered double hydroxides: A case study[J]. Journal of Hazardous Materials B, 2005, 120: 163-171

[9] InacioJ., Taviot-Gue’hoC., ForanoC.. Adsorption of MCPA pesticide by MgAl-layered double hydroxides[J]. Applied Clay Science, 2001, 18: 255-264

[10] RenL.-l., HeJ., EvansD. G., et al.. Intercalation and assembly of supramolecular materials of glutamic acid pillared layered double hydroxides[J]. Chemical Journal of Chinese Universities, 2003, 24(1): 169-173

[11] RenL.-l., HeJ., DuanXue.. The intercalation and assembly of anion pillared materials[J]. Chemistry, 2001, 11: 686-691

[12] FundableA., Pa’linko’I., KiricsiaI.. Amino acids, precursors for cationic and anionic intercalation synthesis and characterization of amino acid pillared materials[J]. Journal of Molecular Structure, 1999, 482/483: 33-37

[13] LiD.-q., FengT., EvansD. G., et al.. Assembly and structural characteristics of organic anion-pillared hydrotalcites[J]. The Chinese Journal of Process Engineering, 2002, 2(4): 355-360

[14] YouQ.-d., LinG.-qiang.Chiral Drugs-Research and Application[M], 2004, Beijing, Chemical Industry Press: 25-175

[15] JiaoF.-p., HuangK.-l., PengX.-hui.. Preparation and application of optical pure tartaric acid pillared Mg-Al layered double hydroxides[J]. The Chinese Journal of Nonferrous Metals, 2005, 16(6): 975-979