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Enhanced photocatalytic activities of SnO_2 by graphene oxide and its application in antibacterial

机译:氧化石墨烯增强SnO_2的光催化活性及其在抗菌剂中的应用

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摘要

Photocatalysis is an effective method to control the environmental pollution. In this study, the SnO_2/GO composites were successfully prepared by ultrasound method to improve the photocatalytic activities of SnO_2. The physical and photophysical properties of the as-prepared SnO_2/GO samples were characterized by X-ray diffractometer, field emission on scanning electron microscopy, transmission electron microscopy, Fourier transform infrared, UV-Vis diffuse reflectance spectroscopy, photoluminescence emission spectroscopy and Raman experiments. The photocatalytic activities of these composites were evaluated by decomposing organic pollutants under UV light irradiation. The degradation rate of the SnO_2/1.0 wt%GO photocatalyst is about 2 times that of the pure SnO_2. Then the pure SnO_2 and the SnO_2/1.0 wt%GO photocatalysts were used in fluo-rocarbon resin (PEVE) coatings to sterilize the bacterial of the seawater. According to the results, the sterilization rate of the SnO_2/1.0GO/PEVE coating is about 2.5 times that of the pure PEVE coating. The high photocatalytic sterilization activity of the SnO_2/GO is attributed to its high electron-hole separation efficiency. This work provides a new approach to address marine biofouling problems.
机译:光催化是控制环境污染的有效方法。本研究通过超声方法成功制备了SnO_2 / GO复合材料,以提高SnO_2的光催化活性。通过X射线衍射仪,扫描电子显微镜的场发射,透射电子显微镜,傅里叶变换红外光谱,UV-Vis漫反射光谱,光致发光发射光谱和拉曼实验表征了制备的SnO_2 / GO样品的物理和光物理性质。 。通过在紫外线照射下分解有机污染物来评估这些复合材料的光催化活性。 SnO_2 / 1.0 wt%GO光催化剂的降解率约为纯SnO_2的2倍。然后将纯SnO_2和SnO_2 / 1.0 wt%GO光催化剂用于氟碳树脂(PEVE)涂层中,以消毒海水细菌。根据结果​​,SnO_2 / 1.0GO / PEVE涂层的灭菌率约为纯PEVE涂层的2.5倍。 SnO_2 / GO的高光催化杀菌活性归因于其高的电子-空穴分离效率。这项工作提供了一种解决海洋生物污染问题的新方法。

著录项

  • 来源
    《Optical and quantum electronics》 |2018年第1期|9.1-9.16|共16页
  • 作者单位

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

    Department of Materials Science and Engineering, Dalian Maritime University, Dalian 116026, People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Graphene oxide; SnO_2; Photocatalyst; Photodegradation; Antibacterial;

    机译:氧化石墨烯;SnO_2;光触媒;光降解;抗菌性;

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