Ling-juan Deng, Yuan-zi Gu, Wei-xia Xu, Zhan-ying Ma. Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)[J]. Chinese Journal of Chemical Physics , 2014, 27(3): 321-326. doi: 10.1063/1674-0068/27/03/321-326
Citation: Ling-juan Deng, Yuan-zi Gu, Wei-xia Xu, Zhan-ying Ma. Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)[J]. Chinese Journal of Chemical Physics , 2014, 27(3): 321-326. doi: 10.1063/1674-0068/27/03/321-326

Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)

doi: 10.1063/1674-0068/27/03/321-326
  • Received Date: 2013-12-09
  • TiO2 nanocrystals/graphene (TiO2/GR) composite are prepared by combining flocculation and hydrothermal reduction technology using graphite oxide and TiO2 colloid as precursors. The obtained materials are examined by scanning electron microscopy, transition electron microscopy, X-ray diffraction, N2 adsorption desorption, and ultraviolet-visible diffuse spec-troscopy. The results suggest that the presence of TiO2 nanocrystals with diameter of about 15 nm prevents GR nanosheets from agglomeration. Owing to the uniform distribution of TiO2 nanocrystals on the GR nanosheets, TiO2/GR composite exhibits stronger light absorption in the visible region, higher adsorption capacity to methylene blue and higher efficiency of charge separation and transportation compared with pure TiO2. Moreover, the TiO2/GR composite with a GR content of 30% shows higher photocatalytic removal efficiency of MB from water than that of pure TiO2 and commercial P25 under both UV and sunlight irradiation.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索

Article Metrics

Article views(2793) PDF downloads(1471) Cited by()

Proportional views
Related

Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)

doi: 10.1063/1674-0068/27/03/321-326

Abstract: TiO2 nanocrystals/graphene (TiO2/GR) composite are prepared by combining flocculation and hydrothermal reduction technology using graphite oxide and TiO2 colloid as precursors. The obtained materials are examined by scanning electron microscopy, transition electron microscopy, X-ray diffraction, N2 adsorption desorption, and ultraviolet-visible diffuse spec-troscopy. The results suggest that the presence of TiO2 nanocrystals with diameter of about 15 nm prevents GR nanosheets from agglomeration. Owing to the uniform distribution of TiO2 nanocrystals on the GR nanosheets, TiO2/GR composite exhibits stronger light absorption in the visible region, higher adsorption capacity to methylene blue and higher efficiency of charge separation and transportation compared with pure TiO2. Moreover, the TiO2/GR composite with a GR content of 30% shows higher photocatalytic removal efficiency of MB from water than that of pure TiO2 and commercial P25 under both UV and sunlight irradiation.

Ling-juan Deng, Yuan-zi Gu, Wei-xia Xu, Zhan-ying Ma. Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)[J]. Chinese Journal of Chemical Physics , 2014, 27(3): 321-326. doi: 10.1063/1674-0068/27/03/321-326
Citation: Ling-juan Deng, Yuan-zi Gu, Wei-xia Xu, Zhan-ying Ma. Preparation of TiO2 Nanocrystals/Graphene Composite and Its Photocatalytic Performance (cited: 1)[J]. Chinese Journal of Chemical Physics , 2014, 27(3): 321-326. doi: 10.1063/1674-0068/27/03/321-326

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return