| Ionic liquids have been extensively used as green solvents in organic synthesis, biphasic catalysis and extraction due to their unusual properties of negligible vapor pressure, high thermal stability and wide liquidus range. Meanwhile, Significant attention has been paid to the application of ionic liquids as neoteric media for materials synthesis, because of their low coordination, low interface energies, low interface tensions and high ordered structure. Ionic liquids are not only non-conventional replacement solvents, but also structural templates and precursors to the material products. Synthesising the advanced materials with specific function and different morphologies in the ionic liquids is very important for both the scientific research of basic theory and the practical application.Based on these specific functions, three kind of nano oxides have been prepared and the main contents are as follows:1. The imidazolium-based ionic liquid intercalated V2O5 compounds were firstly synthesized by the red-oxidation method. The prepared compounds characterized by X-ray diffraction (XRD), FT infrared spectroscopy (FT-IR) and element analysis indicate that 1-methyl-3-methylimidazolium or 1-butyl-3-methylimidazolium was inserted into the interlayer of V2O5 with different d100 interlayer spacing values. The observed results of transmission electron microscope (TEM) exhibited the special straw-like nanofiber morphology of intercalation compounds with the length of 0.5-10μm. These ionic liquid/V2O5 intercalation compounds testified the ultra-fast absorption performance for methylene blue in aqueous media.2.3-(N-imidazolyl)propyltrimethoxysilane hydrochloride ionic liquid were added into the synthesis of mesoporous MCM-41 silica, and organicsilane modified MCM-41 with special nanosphere morphology and bicontinuous mesopores were obtained. AgCl photocatalyst was successfully loaded on the surface of mesoprous silica nanospheres through the induced effect of Cl" ions in 3-(N-imidazolyl)propyltrimethoxysilane hydrochloride grafted on silica surface. The supported amount of AgCl may be adjusted by using the different amount of 3-(N-imidazolyl) propyltrimethoxysilane hydrochloride in the synthesis. The results from XRD, TEM, BET, IR, Uv-vis confirm that AgCl was highly dispersed on MCM-41 silica after the heat treatment. The enhanced photo catalytic performance of AgCl/MCM-41 catalysts were observed in the photogradation of dyes.3,Taking use of long-chain alkyl-imidazole OmimBF4 ionic liquid, zinc oxide material with porous structure by the ionic thermal method. The structure, components, and thermal stability are analysised using FT-IR,XRD,the chemical element analysis and TEM. The results indicated that the material show the high crystal structure, which is different with the zine oxide. It is thermally stable at 350℃. The special compound reveals the excellent adsorption performace for carbon dioxide. Using the similar synthesis method, two kinds of Fe3O4 with different crystal were obtained. One is with porous structure and amorphous framework. The other is Fe3O4 with crystalline framework. The results about magnetism analyse of Fe3O4 was also discussed. Furthermore, crystalline Gu2O with sepecial morphology was also obtaiend.
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