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    • 7. 发明申请
    • RUTILE-TYPE TITANIUM OXIDE CRYSTAL AND MID-INFRARED FILTER USING THE SAME
    • 使用相同类型的氧化锆氧化锆晶体和中红外滤光片
    • US20120161090A1
    • 2012-06-28
    • US13322346
    • 2010-05-24
    • Pei-Xin ZhuRen-Hua Jin
    • Pei-Xin ZhuRen-Hua Jin
    • G02B5/20
    • C01G23/047C01G23/053C01P2002/54C01P2002/72C01P2002/82C09C1/3653G02B1/02G02B5/208
    • A highly versatile material for mid-infrared filters is provided by precisely controlling the absorption intensity of titanium oxide in an infrared region. A rutile-type titanium oxide crystal is produced by a method including a step (I) of dispersing or dissolving a complex of an amino group-containing basic polymer and a transition metal ion in an aqueous medium, a step (II) of obtaining a composite having a polymer/titania layered structure in which the complex of the amino group-containing basic polymer and the transition metal ion is sandwiched between layers of titania, by causing a hydrolysis reaction between the aqueous dispersion or aqueous solution prepared in the step (I) and a water-soluble titanium compound in the aqueous medium, and a step (III) of calcining the composite having the layered structure in an air atmosphere at a temperature of 650° C. or higher to dope a surface of a titanium oxide crystal with the transition metal ion and simultaneously to cause growth into a rutile-type crystal phase. The thus-obtained crystal can be used for mid-infrared filters.
    • 通过精确控制红外线区域中氧化钛的吸收强度,可以提供中红外线滤光片的多用途材料。 通过包含将含氨基的碱性聚合物和过渡金属离子的配合物分散或溶解在水性介质中的工序(I)的方法制造金红石型氧化钛晶体,得到 具有聚合物/二氧化钛层状结构的复合体,其中含氨基的碱性聚合物和过渡金属离子的络合物夹在二氧化钛层之间,通过在步骤(I)中制备的水性分散体或水溶液之间进行水解反应 )和水性介质中的水溶性钛化合物,以及在650℃以上的温度下在空气气氛中煅烧具有层状结构的复合体的步骤(III),以将氧化钛晶体的表面 与过渡金属离子同时引起生长成金红石型晶相。 由此获得的晶体可以用于中红外滤光器。