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采用二甘醇为鳌合剂和反应液制备钛的醇酸盐前驱体球,然后180℃水热处理得到高度晶化的复合分级结构的TiO2球。用X射线衍射仪(XRD)、场发射扫描电子显微镜(FESEM)、傅里叶转换红外光谱仪(FT-IR)以及同步热分析仪(TGA-DSC)对样品进行表征,并探讨了TiO2复合分级球的形成机理。

The diethylene glycol(DEG) was used as chelating agent as well as reaction medium to synthesize the titanium diglycolate precursor spheres.And the highly crystallized hierarchically-structured TiO2 spheres were obtained by hydrothermal treatment of the precursors at 180℃.X-ray diffraction(XRD),field emission scanning electron microscopy(FESEM),Fourier transform infrared spectroscopy(FT-IR) and thermogravimetry-differential scanning calorimetry(TGA-DSC) were used to characterize the precursor and TiO2 spheres.The formation mechanism of the hierarchically-structured TiO2 spheres was also investigated.

参考文献

[1] Caruntu D.;Remond Y.;Chou NH.;Jun MJ.;Caruntu G.;He JB.;Goloverda G. O'Connor C.;Kolesnichenko V. .Reactivity of 3d transition metal cations in diethylene glycol solutions. Synthesis of transition metal ferrites with the structure of discrete nanoparticles complexed with long-chain carboxylate anions[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,2002(23):6137-6146.
[2] Yang J;Li CX;Quan ZW;Kong DY;Zhang XM;Yang PP;Lin J .One-step aqueous solvothermal synthesis of In2O3 nanocrystals[J].Crystal growth & design,2008(2):695-699.
[3] Libert S.;Gorshkov V.;Goia D.;Matijevkic E.;Privman V. .Model of controlled synthesis of uniform colloid particles: Cadmium sulfide[J].Langmuir: The ACS Journal of Surfaces and Colloids,2003(26):10679-10683.
[4] Yu HK;Yi GR;Kang JH;Cho YS;Manoharan VN;Pine DJ;Yang SM .Surfactant-assisted synthesis of uniform titania microspheres and their clusters[J].Chemistry of Materials: A Publication of the American Chemistry Society,2008(8):2704-2710.
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