层状化合物Bi_2W_2O_9的制备及其酸交换性质研究  

Preparation of Layered Bi_2W_2O_9 and Its Acid-exchanging Property

作　　者：营爱玲[1] 梁济元[1] 童志伟[1] 

机构地区：[1]淮海工学院化学工程学院,江苏连云港222005

出　　处：《淮海工学院学报（自然科学版）》2010年第1期39-41,共3页Journal of Huaihai Institute of Technology:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(50873042)

摘　　要：采用高温固相法合成了层状Bi2W2O9,随后通过酸化处理得到H2W2O7·nH2O。采用X射线衍射仪(XRD)、扫描电子显微镜(SEM)、红外光谱(IR)对产物进行了表征。结果表明,采用高温固相法可获得层状结构的Bi2W2O9,层间距1.2 nm。经酸交换后的H2W2O7.nH2O仍保持层状结构,但层间距略变小。A layered compound Bi2W2O9 was synthesized by solid-state reaction at a high temperature. Then Bi2W2O9 was treated with hydrochloric acid. The compounds were characterized by XRD, SEM and IR. The results showed that the layered Bi2W2O9 could be obtained by solid-state reaction at a high temperature and its interlayer distance was 1.2 nm. After acid-exchanging, the layered structure was retained but the interlayer distance became shorter.

关 键 词：层状化合物 Bi2W2O9 酸交换 H2W2O7·nH2O 

分 类 号：TB383[一般工业技术—材料科学与工程] O621.2[理学—有机化学]