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首页> 外文期刊>RSC Advances >Effects of morphology, surface area, and defect content on the photocatalytic dye degradation performance of ZnO nanostructures
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Effects of morphology, surface area, and defect content on the photocatalytic dye degradation performance of ZnO nanostructures

机译：形态，表面积和缺陷含量对ZnO纳米结构光催化染料降解性能的影响

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ZnO nanostructures of different morphologies were fabricated through ultrasound-assisted hydrolysis of zinc acetate at room temperature, by controlling the pH of the reaction mixture. It has been observed that the pH of the reaction solution affects both the morphology and defect content of the nanostructures. To study the effects of morphology and other parameters like specific surface area, defect content, and surface contamination on photocatalytic activity, both the as-grown and air-annealed nanostructures were tested for methylene blue (MB) degradation under UV light. While all the above mentioned parameters have been seen to affect the photocatalytic performance of ZnO nanostructures, specific surface area, defect content, and carbon contamination at the surface have been seen to be the most important parameters, and should be controlled for their application in photocatalysis. Therefore, for photocatalytic applications of ZnO nanostructures, not only their morphology or the specific surface area are important, but care should be taken to control their defect contents and surface contaminants.
机译：通过控制反应混合物的pH值，在室温下通过超声辅助水解乙酸锌来制备不同形态的ZnO纳米结构。已经观察到反应溶液的pH影响纳米结构的形态和缺陷含量。为了研究形态和其他参数（如比表面积，缺陷含量和表面污染）对光催化活性的影响，测试了生长中和空气退火的纳米结构在紫外光下的亚甲基蓝（MB）降解。尽管已发现上述所有参数均会影响ZnO纳米结构的光催化性能，但已将比表面积，缺陷含量和表面的碳污染视为最重要的参数，应对其进行控制以控制其在光催化中的应用。 。因此，对于ZnO纳米结构的光催化应用而言，不仅其形态或比表面积很重要，而且还应注意控制其缺陷含量和表面污染物。

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