Co-templating synthesis of highly dispersed 1D ZnO nanostructures in amorphous SiO2 under hydrothermal condition |
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Authors: | Liangming Xiong Jianlin Shi Jinlou Gu Liang Li Weihua Shen Zile Hua |
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Institution: | State Key Laboratory of High Performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050, P.R. China |
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Abstract: | One-dimensional (1D) ZnO nanostructures were grown in amorphous SiO2 matrix by a co-templating method under hydrothermal condition. Using ethylenediamine (EDA) groups grafted mesoporous silica MCM-41 as a co-template, the growth of 1D ZnO nanostructures was oriented by soft EDA groups and confined inside the hard mesochannels of MCM-41. The microstructure and morphology of the 1D-ZnO-nanostructures/SiO2 composite were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) and X-ray energy dispersive spectroscopy (EDS). All these results indicate that the 1D ZnO nanostructures were synthesized and highly dispersed in the amorphous SiO2 matrix. Blue-shifted exciton absorption was observed from the co-templating synthesized sample. |
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Keywords: | Nanocomposite Co-template Mesoporous silica Ethylenediamine group One-dimensional ZnO nanostructure High dispersion |
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