High photocatalytic activity of ZnO-graphene composite.
High photocatalytic activity of ZnO-graphene composite.
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DOI：
10.1016/j.jcis.2018.04.040
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发表时间：
2018-11
影响因子：
9.9
通讯作者：
Bing Xue;Yingquan Zou
中科院分区：
文献类型：
--
作者：
Bing Xue;Yingquan Zou
本文采用一种新颖的一步光化学方法制备了氧化锌纳米颗粒-还原氧化石墨烯(RGO)复合材料。所开发的纳米复合材料在紫外光和可见光下对亚甲基蓝(MB)具有很高的光降解效率。在该方法中，氧化石墨烯(GO)的还原和纳米氧化锌的生成同时进行，从而获得了高效率的氧化锌/氧化rGO纳米复合材料。电子显微镜证实，纳米氧化锌颗粒均匀地固定在rGO片层上。用X射线衍射仪、傅立叶变换红外光谱、拉曼光谱和X射线光电子能谱对所制备的纳米复合材料的结构和质量进行了表征。此外，还详细讨论了纳米复合材料的合成和甲基溴的降解，以及对其机理的认识。
In this work, ZnO nanoparticles-reduced graphene oxide (rGO) composites were fabricatedviaa novel one-step photochemical method. The developed nanocomposite offered high photodegradation efficiency of methylene blue (MB) under UV and visible light. In the proposed route, the reduction of graphene oxide (GO) and formation of ZnO nanoparticles occurred simultaneously, which results in high synthesis efficiency of ZnO/rGO nanocomposites. The electron microscopy confirmed that the ZnO nanoparticles were uniformly anchored on rGO sheets. The structure and quality of prepared nanocomposite were assessed by X-ray diffraction, Fourier transform infrared (FT-IR) spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). Furthermore, the synthesis of the nanocomposite and degradation of MB, along with a mechanistic insight, is discussed in detail.