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Updated: Jan 27, 2026

Visible-light Induced Reduction of Graphene Oxide Using Plasmonic Nanoparticle
Published on: September 22, 2015
Direct Synthesis of Reduced Graphene Oxide/TiO₂ Nanotubes Composite from Graphite Oxide as a High-Efficiency
Nguyen Truong Tho1, Nguyen Thi Truc Mai1, Nguyen Thi Van2
1Faculty of Materials Science and Technology, University of Science, VNU-HCM, District 5, Ho Chi Minh City, 700000, Vietnam.
Abstract:
Synthesis of reduced graphene oxide/TiO₂ nanotubes (rGO/TNTs) composite is being attended. However, the synthesis of rGO/TNTs composite directly from graphite oxide with a greener approach is still challenging. In this study, we directly synthesized rGO/TNTs composite by a simple method from graphite oxide and titanium dioxide nanotube (TNTs) powder without involving any assistant agents. The formation of the graphene oxide (GO) was confirmed by X-ray diffraction (XRD) pattern, transmission electron microscope (TEM) image, Fourier-transform infrared (FTIR) spectroscopy, and X-ray photoelectron spectroscopy (XPS). Besides, photoluminescence analysis (PL) was conducted to determine the defects of materials. The methylene blue (MB) photodegradation efficiency under visible light of rGO/TNTs composite achieved 80% after 180 min. In addition, the key of the photocatalytic mechanism of rGO/TNTs under visible light was systematically investigated via trapping experiments.
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