焦磷酸根嵌入后形成的交联水滑石的研究

Advances in the Study on Intercalation and Crosslinking of Hydrotalcite with Pyrophosphate

合成了焦磷酸根交联水滑石 ,用XRD、FT IR、DTA TG、MASNMR等手段研究了焦磷酸根嵌入后形成的水滑石 ,提出了嵌入水滑石层间最多的离子为H2 P2 O72 -,高温灼烧 ,P2 O74 -柱子交联到层上 ,且焦磷酸根离子链垂直位于水滑石层中 ,产物表面积为 87m2

A crosslinked hydrotalcite with pyrophosphate was synthesized and its intercalation and crosslinking were studied by XRD,FT IR,DTA TG, 27 Al and 31 P MASNMR techniques.It is proposed that the amount of H 2P 2O 7 2- anion intercalated into the interlayer space of the hydrotalcite is the most.When calcination at high temperature, it forms P 2O 7 4- pillars and crosslinks to the layer of the hydrotalcite.The product has a surface area of 87m 2/g.