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Citation: HE Shu-Heng, PU Min, LI Jun-Nan, HE Jing, EVANS David G.. Assembly, Structure and Properties of Acid Orange 7-Pillared Zn/Al Hydrotalcite[J]. Acta Physico-Chimica Sinica, ;2010, 26(01): 259-264. doi: 10.3866/PKU.WHXB20100122 shu

Assembly, Structure and Properties of Acid Orange 7-Pillared Zn/Al Hydrotalcite

1.
State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, P. R. China

Received Date: 16 July 2009
Available Online: 27 November 2009

Acid orange 7 (AO7)-pillared Zn/Al layered double hydroxides (Zn/Al-AO7 LDHs) were successfully synthesized using the co-precipitation method. In this experiment, synthetic parameters such as the pH value and the ratios of raw materials were varied to study their influences on the structure of Zn/Al-AO7 LDHs. Sample characterization was carried out using X-ray diffraction (XRD), thermal analysis (TG-DTA), and Fourier transform infrared (FT-IR) spectroscopy. The molecular geometries of the Zn/Al-AO7 LDHs model were calculated at the B3PW91/6-31G(d, p) level and the gallery heights were 2.33 nm, which agreed well with the experimental results. Formamide was chosen as a solvent for the layered double hydroxide delamination experiment. XRD patterns showed that all the layers had been delaminated.
- Density functional theory,
- Zn/Al-LDHs,
- Acid orange 7,
- Delamination,
- Quantumchemistry calculation
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