Acta Phys. -Chim. Sin. ›› 1996, Vol. 12 ›› Issue (06): 573-576.doi: 10.3866/PKU.WHXB19960620

• Note • Previous Articles    

Synthesis and Adsorption Properties of some Polyoxometalate Pillared Hydrotalcites

Guo Jun,Jiao Qing-Ze,Lv Hui-Juan,Jiang Da-Zhen,Yang Guang-Hui,Min En-Ze   

  1. Department of Chemistry,Jilin University,Changchun 130023|Department of Chemistry,Education Institute of Jilin Province,Changchun 130024|Research Institute of Petroleum Processing,Beijing 100083
  • Received:1995-10-23 Revised:1995-12-11 Published:1996-06-15
  • Contact: Guo Jun

Abstract:

Mg-Al hydrotalcites with different Mg/Al ratios and their polyoxometalate intercalates were synthesized by direct ion-exchange reactions. The porous structures of the pillared products were studied by adsorbing various molecules with different, kinetic diameter on them. The results show that the porous structures of the pillared products can be adjusted either by changing the layer charge densities or by changing the pillar densities, i. e. the pore diameter will increase with the increament of the Mg atoms in the layers and the polyoxometalate charges in the gallery.

Key words: Mg/Al atomic ratio, Polyoxometalates, Pillared hydrotalcites, Synthesis, Adsorption properties