夹心型钨锑酸阴离子插层镁铝水滑石的制备与表征

Synthesis and characterization of sandwich type tungstobismuthate polyoxonion intercalated Mg-Al-Layered double hydroxides

目的:制备一种新型多阴离子插层水滑石类无机复合功能材料(Sb2W18Co3-LDHs)。方法:采用离子交换法制备Sb2W18Co3-LDHs,使用X-射线粉末衍射和红外光谱对样品进行了表征。结果:夹心型钨锑酸阴离子(Sb2W18Co3)成功插入到Mg-Al-LDHs层间,取代了层间原有的硝酸根离子,制备了新型的Sb2W18Co3-LDHs。结论:夹心型锑钨酸盐成功应用于水滑石复合材料中。

Objective： To synthesize new polyoxoanion intercalated Mg--Al--Layered double hydroxide composites, abbreviated as Sb2W18Co3--LDHs. Methods：Sb2W18Co3--LDHs have been synthesized by ion ex- change method and were characterized by powder XRD and FTIR. Results：The interlayer nitrate ions incorpo- rated into Mg-- Al, LDHs, which have been replaced by the sandwich-- type tungstobismuthate polyoxoanion, and thus formed a new kind of Sb2W18Co3- LDHs hybrid. Conclusion： Sandwich--type tungstobismuthate polyoxoanion can be applied in Mg--Al--Layered double hydroxide composites.