烷基咪唑/五氧化二钒插层化合物的组装、表征及性能

Assembly,Structural Characteristics and Property of Alkyl-Imidazolim /V_2O_5 Intercalation Compounds

以两种烷基咪唑类离子液体(13,-二甲基咪唑碘、1-丁基-3-甲基咪唑碘)为插层客体,通过氧化还原的方法,合成了烷基咪唑/V2O5的插层化合物。采用FT-IR、XRD、UV-vis DRS和元素分析对其结构组成进行了分析,结果表明1-丁基-3-甲基咪唑1、,3-二甲基咪唑离子已被插入到V2O5层间。电镜结果表明,所合成的材料是具有层状结构,且形貌像稻草束的纳米烷基咪唑/V2O5插层化合物。此类插层材料在水溶液中对亚甲基蓝具有很强的吸附能力,是一类对亚甲基蓝具有特殊吸附性能的新颖插层化合物。在一定条件下,该类插层化合物对染料甲基橙具有良好的光降解效果。

Using two types of alkyl imidazolium ionic liquids（1-methyl-3-methylimidazolium iodine 1-butyl-3-methylimidazolium iodine） as intercalation object,the alkyl imidazole V2O5 intercalation compound is prepared through the oxidation-reduction method.Applying FT-IR,XRD,UV-vis DRS and elemental analysis,the composition about V2O5 intercalation compound is analyzed.The results show： 1-butyl-3-methylimidazolium cation and 1-methyl-3-methylimidazolium cation have been inserted into the V2O5 layer.Transmission electron microscope（TEM） results show that the synthetic material is nanofiber alkyl imidazole V2O5 intercalation compound with layered structure and straw morphology.Such intercalation material has strong adsorption capacity for methylene blue in aqueous solution;it is a type of novel intercalation compound which has special adsorption function for methylene blue.The intercalation compound is more photocatalytically active for methyl orange under certain conditions.