Scholarlink

To enhance photocatalytic activity and reusability of titanium dioxide (TiO2) coatings via combining with graphene (G) and graphene oxide (GO), a series of TiO2/G and TiO2/GO composite coatings were obtained by solution-immersion process (SIP). The as-prepared composite coatings were characterized by means of Raman spectroscopy, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and photocatalytic activity. Raman and SEM results clearly show that G and GO successfully form on the surface of TiO2 coatings, and GO is easier to combine with TiO2 coatings, compared with that of G. The influence of SIP time on the combined amount of G and GO is significant. Furthermore, Raman and XPS results reveal that the combined amount of G and GO could be controlled by adjusting SIP time. Through the degradation of methylene blue (MB) solution, the photocatalytic activity of the TiO2/GO composite coatings is better than that of TiO2/G, and the degradation rate is increased approximately 80%. Notably, the 10-cycle tests reveal that the reusability of the TiO2/G and TiO2/GO composite coatings is satisfactory.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Enhanced Photocatalytic Activity of TiO2/Graphene and TiO2/Graphene Oxide Composite Coatings by a Solution-Immersion Process

  • 会议论文

  • 发表日期：

    2026年

查看全文
  • Lijun Wang,
  • Sujun Guan,
  • Takaomi Itoi,
  • Yun Lu

摘要

To enhance photocatalytic activity and reusability of titanium dioxide (TiO2) coatings via combining with graphene (G) and graphene oxide (GO), a series of TiO2/G and TiO2/GO composite coatings were obtained by solution-immersion process (SIP). The as-prepared composite coatings were characterized by means of Raman spectroscopy, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and photocatalytic activity. Raman and SEM results clearly show that G and GO successfully form on the surface of TiO2 coatings, and GO is easier to combine with TiO2 coatings, compared with that of G. The influence of SIP time on the combined amount of G and GO is significant. Furthermore, Raman and XPS results reveal that the combined amount of G and GO could be controlled by adjusting SIP time. Through the degradation of methylene blue (MB) solution, the photocatalytic activity of the TiO2/GO composite coatings is better than that of TiO2/G, and the degradation rate is increased approximately 80%. Notably, the 10-cycle tests reveal that the reusability of the TiO2/G and TiO2/GO composite coatings is satisfactory.