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The Composite of CuO/Diatomaceous Shale Prepared by Hydrothermal Method and Their Photocatalytic Properties
Crystal Research and Technology ( IF 1.5 ) Pub Date : 2019-12-03 , DOI: 10.1002/crat.201900166
Ziyi Wang 1 , Binhua Cao 2 , Zhijun Wang 2 , Qiao Chen 1 , Yongqian Wang 1, 3
Affiliation  

Photocatalytic degradation is a new wastewater treatment technology, in which copper oxide (CuO) is a common photocatalyst. Herein, diatomaceous shale is used to load nanoscale CuO, which can, on the one hand, improve the photocatalytic performance, and on the other hand, reduce the cost of catalyst preparation. Furthermore, the morphology, crystal structures, and optical properties of the composite of CuO/diatomaceous shale are studied by scanning electron microscopy, X‐ray diffraction, UV–vis spectrophotometer, energy‐dispersive spectroscopy, and photoluminescence spectroscopy. Through the study of different experimental conditions, the reusability test demonstrates that the morphology and distribution status of CuO nanostructures are controllable. In addition, a group of composite catalysts prepared under the best technological conditions is selected to conduct the actual sewage degradation experiment, and the results show that the prepared composite of CuO/diatomaceous shale has a good degradation effect on sewage. These findings provide an insight into the design and synthesis of new CuO‐based composites to effectively improve their photocatalytic performance.

中文翻译:

水热法制备CuO /硅藻土页岩的复合材料及其光催化性能

光催化降解是一种新的废水处理技术,其中氧化铜(CuO)是常见的光催化剂。在本文中,硅藻土页岩用于负载纳米级的CuO,其一方面可以改善光催化性能,另一方面可以降低催化剂制备的成本。此外,还通过扫描电子显微镜,X射线衍射,紫外可见分光光度计,能量色散光谱和光致发光光谱研究了CuO /硅藻土页岩复合材料的形态,晶体结构和光学性质。通过对不同实验条件的研究,可重用性测试表明,CuO纳米结构的形貌和分布状态是可控的。此外,选择了一组在最佳工艺条件下制备的复合催化剂进行实际的污水降解实验,结果表明,所制备的CuO /硅藻土页岩复合物对污水具有良好的降解效果。这些发现为新的基于CuO的复合材料的设计和合成提供了见识,以有效提高其光催化性能。
更新日期:2020-01-07
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