| This paper has researched on the subject of the preparation and functionalizing of SBA-15, which was performed in the selective oxidation of alcohols in water to test the catalysis ability, and the factors influencing the conversion of alcohol and the selectivity of carbonyl compounds have been investigated.SBA-15 was widely used in the areas of catalysis, adsorption and separation attributed to the qualities as follows:well-ordered mesoporous channels, large specific surface area, tailored large pore diameter, narrow pore size distributions, thick wall, well stability and hydrothermal stability. In this research, we synthesized the silica molecular sieves through the hydrothermal method, and the sample was characterized by XRD, TEM, N2 adsorption-desorption measurements and FT-IR, which demonstrated that SBA-15 appeared the well-ordered pores arranged 2D-hexagonal p6mm structure with the 828.2 m2/g specific surface area and 5.65nm pore diameter.The catalysts were prepared through three different ways, which were characterized by XRD, TEM, N2 adsorption-desorption measurements, FT-IR and ICP etc. The result illustrated that the catalyst via grafting the Cu(â…¡) Schiff base complex onto the channels of SBA-15 was what we need. The functionalized SBA-15 maintained the primary hexagonally ordered mesoporous structure, and the Cu(â…¡) Schiff base complex were bonded inside the mesoporous channels of SBA-15.The selective oxidation of benzyl alcohol was carried out in water phase with hydrogen peroxide, and the factors influencing the conversion of alcohol, such as reaction temperature, reaction time, the volume of water, have been investigated. The catalyst performed high catalytic ability and selectivity towards C6H5CH2OH, and the C6H5CH2OH conversion could reach 98.5% with 100% of the selectivity to C6H5CHO under the optimum conditions. The catalyst could also react well on the selective oxidation of other primary alcohols.
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