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Facile Synthesis of Waxberry-Like ZnO Nanospheres for High Performance Photocatalysis

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The waxberry-like ZnO nanospheres were successfully synthesized via a facile solution route by refluxing their acetate precursors in diethylene glycol (DEG) medium at 160 °C. The as-prepared ZnO nanospheres were characterized by transmission electron microscopy (TEM), field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). Experimental results demonstrated that the resultant products showed waxberry-like spherical architecture with an average size of 200 ± 50 nm, which was composed of numerous nanocrystals with hexagonal wurtzite structure. On the basis of these materials information, the growth mechanism of waxberry-like ZnO nanospheres was also discussed. Furthermore, the photocatalytic measurement demonstrated that the as-prepared waxberry-like ZnO nanospheres showed higher photocatalytic activities than the as-prepared ZnO nanoparticles and commercial P25 TiO2 nanoparticles. It is expected that this work could provide a facile and low-cost method for the development of novel semiconductor nanostructures as high performance photocatalysts with promising applications in solar energy conversion, photocatalysis, sensing, and so on.
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Keywords: GROWTH MECHANISM; PHOTOCATALYSIS; REFLUXING PROCESS; WAXBERRY-LIKE STRUCTURE; ZNO NANOSPHERE

Document Type: Research Article

Publication date: November 1, 2013

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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