Synthesis And Characterization Of A New Intercalated Layered Titanosilicate

Recently, the rapid development of inorganic micro-porousmaterials in the areas such as catalysis, host/guest assembly ,etc.emphasizes the strategic status of synthesis and preparationchemistry of micro-porous materials. Much interest has beenfocused on the preparation of those micro-porous materials thathave either novel open-framework or novel metallic species in thestructure. The pillared layered compound (e.g. Layered titanosilicate )is one of the most extensively studied zeolite-like materials,which has the similar performance such as larger specific surfaceareas and excellent catalytic activation .Traditionally, thepillared layered compounds are formed either by ion exchange orby intercalation from solutions of condensed species obtained bythe hydrolysis of organometallic precursors using sol-gelmethods. However, it is not an easy task to intercalate these largeorganometallic species into the interlayer space , and usuallyleads to a low crystallinity of the pillared material. So , we playmuch more emphases on the development of new synthesis system andthe improvement of the crystallinity. JDF-L1 is the first synthetic noncentrosymmetric compoundcontaining five-coordinated Ti(V) ions .As a catalyst,titanosilicate molecular sieves can be used in fine chemicalindustry and the production of manufactured goods for daily use,they can also be used as Louis acid catalysts whose catalytic IIIABSTRACT Master thesis of Jilin Universityactivity and service life are much better than uniform phasecatalyst ,and recently, more and more attention is paid to theirapplication as optical catalyst .So, we decide to study thepillaring of JDF-L1 with AMPS( NH2(CH2)3-Si-O-Si-(CH2)3NH2) andto find out whether it can be transformed into a novelmicro-porous structure. Experimentally,JDF-L1 was first preswelled by the interactionof different alkylamminium ions and then AMPS was absorbed intothe organophilic interlayer region. The successfullyintercalation of JDF-L1 gives rise to an evident increase of theinterlayer distance, and the structure of the compound has beentransformed into a new micro porous one. Recently, the synthesis of new materials that might combinethe nanoporosity of zeolites with the magnetic and opticalproperties, electronic conductivity and ferroelectricity oftransition metal compounds has attracted great attention. Up tonow, many transition metal phosphates such as MoPOs, VPOs etc. havebeen reported in the literature. Many of these materials exhibitunique structures which may have potential applications incatalysis and magnetic field. The report of microporous manganese phosphate is very few.Manganese has excellent magnetic character and good framework.Scientists have been making great efforts all the while. And somemanganese phosphate which contain alkali metals, alkaline earth andtransition metals have been prepared with the condition of high IVABSTRACT Master thesis of Jilin Universitytemperature, solid state or high temperature hydrothermal reaction. A novel manganese phosphate has been synthesized. Thecrystallographic data of the compound is a=8.968 ?,b=10.08 ?,c=21.06 ?,α=90°,β=99°,γ=90°,V=1880.47 ?3,Z=4。 V...