Preparation and Characterization of TiO2-pillared Layered HNb3O8

• 来源期刊: 中国化学（英文版）
• 学科: 化学
• 年，卷（期）: 2004,（4）
• 页码范围: 340-343
• 页数: 4页
• 分类号: O6
• 语种: 英文

摘要

Oligomeric titanium(IV)cation([Ti(OH)x(H2O)y]z+)-intercalated niobate was prepared through a stepwise ion-exchange route,in which n-decylamine was employed as a preswelling agent and titanium isopropoxide as titanium source.Titania-pillared layered niobic acid was then obtained by calcining oligomeric titanium(IV)cation-intercalated niobate at 450℃ in air.Characterization of this pillared material indicated that the material had a porous layered structure with an interlayer distance of 1.38 nm and a BET(Brunauer-Emmett-Teller)surface area of 34 m2·g-1.The layered structure was still retained after the pillared material was heated at 550℃.