经Opuntia dilenii haw植物提取液绿色合成制备的纳米铝酸锌的催化性质(英文)
Various nanosized zinc aluminate(ZnAl2O4) samples were prepared by a conventional and a mi- crowave method both with and without using Opuntia dilenii haw plant extract,and were charac- terized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),high resolution scanning electron...
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| Published in: | 催化学报 no. 10; pp. 1951 - 1958 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | Chinese |
| Published: |
2013
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| Subjects: | |
| Online Access: | Get full text |
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| Summary: | Various nanosized zinc aluminate(ZnAl2O4) samples were prepared by a conventional and a mi- crowave method both with and without using Opuntia dilenii haw plant extract,and were charac- terized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),high resolution scanning electron microscopy(HRSEM),energy dispersion scanning(EDX),temperature dependent conductance measurements, thermoelectric power measurements, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy,and photoluminescence spectroscopy.The formation of a pure ZnAl2O4 phase was confirmed by XRD and FT-IR.A change in morphology from nanosized plates to nanosized sheets with,respectively,the conventional and microwave heating methods was clearly shown by HRSEM.UV-Vis diffusion reflectance spectroscopy measured the band gaps of ZnAl2O4 nanosized plates and nanosized sheets as 3.5 and 3.9 eV,respectively.The synthesized ZnAl2O4 was single crystalline and has three photoluminescence emissions at 482,528,and 540 nm.ZnAl2O4 nan |
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| Bibliography: | C.Ragupathi;J.Judith Vijaya;S.Narayanan;L.John Kennedy;Seeram Ramakrishna;Catalysis and Nanomaterials Research Laboratory,Department of Chemistry,Loyola College;Materials Division,School of Advanced Sciences,Vellore Institute of Technology University;Centre for Nanofibres and Nanotechnology,National University of Singapore Green synthesis;Zinc aluminate;Spinel;Microwave;Optical property Various nanosized zinc aluminate(ZnAl2O4) samples were prepared by a conventional and a mi- crowave method both with and without using Opuntia dilenii haw plant extract,and were charac- terized by X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FT-IR),high resolution scanning electron microscopy(HRSEM),energy dispersion scanning(EDX),temperature dependent conductance measurements, thermoelectric power measurements, ultraviolet-visible (UV-Vis) diffuse reflectance spectroscopy,and photoluminescence spectroscopy.The formation of a pure ZnAl2O4 phase was confirmed by XRD and FT-IR.A change in morphology from nanosize |
| ISSN: | 0253-9837 1872-2067 |