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微波水热法制备ZnO-还原氧化石墨烯纳米复合材料及其光催化性能

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邓兴红, 伍水生, 李代光, 陶淳, 易兵. 微波水热法制备ZnO-还原氧化石墨烯纳米复合材料及其光催化性能[J]. 环境化学, 2020, (2): 426-432. doi: 10.7524/j.issn.0254-6108.2019031404
引用本文: 邓兴红, 伍水生, 李代光, 陶淳, 易兵. 微波水热法制备ZnO-还原氧化石墨烯纳米复合材料及其光催化性能[J]. 环境化学, 2020, (2): 426-432. doi: 10.7524/j.issn.0254-6108.2019031404
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DENG Xinghong, WU Shuisheng, LI Daiguang, TAO Chun, YI Bing. Microwave hydrothermal synthesis and photocatalytic properties of ZnO-reduced graphene oxide nanocomposites[J]. Environmental Chemistry, 2020, (2): 426-432. doi: 10.7524/j.issn.0254-6108.2019031404
Citation: DENG Xinghong, WU Shuisheng, LI Daiguang, TAO Chun, YI Bing. Microwave hydrothermal synthesis and photocatalytic properties of ZnO-reduced graphene oxide nanocomposites[J]. Environmental Chemistry, 2020, (2): 426-432. doi: 10.7524/j.issn.0254-6108.2019031404
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微波水热法制备ZnO-还原氧化石墨烯纳米复合材料及其光催化性能

  • 湖南工程学院, 环境催化与废弃物再生化湖南省重点实验室, 材料与化工学院, 湘潭, 411104

    • 通讯作者: 伍水生, E-mail: tel:17397321076 ;  易兵, E-mail: bingyi2004@126.com
  • 基金项目:

    湖南省教育厅青年基金（19B126），国家自然科学基金（21772035，21401088），环境催化与废弃物再生化湖南省重点实验室开放基金（2018KF06）和湖南工程学院国家基金预研项目（YY1906）资助.

Microwave hydrothermal synthesis and photocatalytic properties of ZnO-reduced graphene oxide nanocomposites

  • Hunan Provincial Key Laboratory of Environmental Catalysis&Waste Regeneration, School of Materials and Chemical Engineering, Hunan Institute of Engineering, Xiangtan, 411104, China

    • Corresponding authors: WU Shuisheng, tel:17397321076 ;  YI Bing, bingyi2004@126.com
  • Fund Project: Supported by the Scientiflc Research Fund of Hunan Provincal Educution Department (19B126), National Natural Science Foundation of China(21772035, 21401088), the Open Fund Hunan Province Key Laboratory of Environmental Catalysis and Waste Recycling (2018KF06) and Pre-Research Science Fund Project of Hunan Institute of Engineering(YY1906).

  • 摘要: 通过快速沉淀-NaBH4微波水热还原制备了ZnO-还原氧化石墨烯（RGO）纳米复合物.采用X射线衍射（XRD）、激光拉曼光谱（Raman）、透射电子显微镜（TEM）、X射线光电子能谱（XPS）和光致发光（PL）等测试手段对复合光催化剂进行表征.结果表明，复合材料中的氧化锌为六方晶系纤锌矿结构，并均匀覆盖在RGO表面上，其直径大约为15-20 nm.ZnO-RGO复合材料的光催化性能明显优于氧化锌，为纯ZnO的2.5倍.光催化性能提高可能归因于RGO优良的电子传输能力加速了ZnO-RGO纳米材料光生载流子的分离效率.
    Abstract: In this paper, ZnO-reduced graphene oxide RGO nanocomposite was prepared by a rapid precipitation-microwave hydrothermal method using NaBH4 as the reducing agent. The as-synthesized photocatalysts were characterized by X-ray diffraction (XRD), Raman spectroscopy, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and photoluminescence spectroscopy (PL). The results show that the ZnO nanoparticles in the composite had a diameter of about 15-20 nm with hexagonal wurtzite structure, and were uniformly anchored on the graphene surface. The introduction of graphene improved the photocatalytic performance of zinc oxide. When the graphene content was 1%, the photocatalytic reaction rate constant of ZnO-RGO was the largest, which is 2.5 times that of ZnO. This may be attributed to the reason that graphene could effectively suppress the recombination of free electrons and holes in ZnO, resulting in an increase in photocatalytic performance.
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  • 收稿日期:  2019-03-14

微波水热法制备ZnO-还原氧化石墨烯纳米复合材料及其光催化性能

    通讯作者: 伍水生, E-mail: tel:17397321076 ;  易兵, E-mail: bingyi2004@126.com
  • 湖南工程学院, 环境催化与废弃物再生化湖南省重点实验室, 材料与化工学院, 湘潭, 411104
  • 收稿日期:  2019-03-14
  • 网络出版日期:  2020-02-26
基金项目:

湖南省教育厅青年基金（19B126），国家自然科学基金（21772035，21401088），环境催化与废弃物再生化湖南省重点实验室开放基金（2018KF06）和湖南工程学院国家基金预研项目（YY1906）资助.

摘要: 通过快速沉淀-NaBH4微波水热还原制备了ZnO-还原氧化石墨烯（RGO）纳米复合物.采用X射线衍射（XRD）、激光拉曼光谱（Raman）、透射电子显微镜（TEM）、X射线光电子能谱（XPS）和光致发光（PL）等测试手段对复合光催化剂进行表征.结果表明，复合材料中的氧化锌为六方晶系纤锌矿结构，并均匀覆盖在RGO表面上，其直径大约为15-20 nm.ZnO-RGO复合材料的光催化性能明显优于氧化锌，为纯ZnO的2.5倍.光催化性能提高可能归因于RGO优良的电子传输能力加速了ZnO-RGO纳米材料光生载流子的分离效率.

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