Effect of Graphene-Gold Nanocomposites on the Photocatalytic Activity Of TiO\(_2\)

Vu Duc Chinh, Thuy Van Nguyen, Pham Thanh Binh, Chu Thi Thu Hien
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Authors

  • Vu Duc Chinh Institute of Materials Science, Vietnam Academy of Science and Technology
  • Thuy Van Nguyen
  • Pham Thanh Binh
  • Chu Thi Thu Hien

DOI:

https://doi.org/10.15625/0868-3166/30/1/14631

Abstract

The synthesis of graphene (Gr) - gold (Au) nanoparticle (NP) composite was achieved using continuous ultraviolet wave exposure. The functional groups were investigated with FT-IR spectra. From the Raman spectra, D-band and G-band of graphene were identified. As a result, the uniform deposition of nanometer-sized Au NPs on the graphene sheets was observed from the field emission scanning electron microscope (FE-SEM) images. The photodegradation of methylene blue in aqueous solutions is studied using various photocatalysts, including neat TiO2, Gr/TiO2 and Gr-Au/TiO2 composites. The Gr weight ratio in this research is 2%. The Gr2%-Au0.1%/TiO2 composite had the highest photoactivity.

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Published

05-03-2020

How to Cite

[1]
V. D. Chinh, T. V. Nguyen, P. T. Binh and C. T. T. Hien, Effect of Graphene-Gold Nanocomposites on the Photocatalytic Activity Of TiO\(_2\), Comm. Phys. 30 (2020) 19. DOI: https://doi.org/10.15625/0868-3166/30/1/14631.

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Papers
Received 15-11-2019
Accepted 20-01-2020
Published 05-03-2020

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