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Spray-Drying Synthesis of Ball-Like ZnO Assembly Composed of ZnO Nanoparticles for Highly Efficient Photocatalysis

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In this paper, ball-like ZnO assemblies composed of ZnO nanoparticles were prepared by a spray drying method and showed potential as a photocatalyst. The process included preparing a zinc acetate solution, then producing a ZnO precursor, and then sintering the precursor to obtain the ball-like ZnO assemblies. With an increase in the calcination temperature, the crystallinity degree could be improved along with an increase in the crystallite size. Scanning electron microscopy (SEM) analysis showed zinc oxide formed micron sized spherical structures by agglomeration. The effects of the calcination temperature of ball-like ZnO on the degree of photodegradation have been investigated. Experimental results showed that when the ball-like ZnO assemblies were employed as photocatalysts, the increase of the temperature led to the decrease of the degradation rate of methyl orange.
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Document Type: Short Communication

Publication date: March 1, 2017

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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