E3S Web of Conferences (Jan 2018)

Solar Light Harvesting N-Graphene Quantum Dots Decorated TiO2 for Enhanced Photocatalytic Activity

  • Lim Ping Feng,
  • Hak Chen Hong,
  • Leong Kah Hon,
  • Sim Lan Ching,
  • Saravanan Pichiah

DOI
https://doi.org/10.1051/e3sconf/20186505014
Journal volume & issue
Vol. 65
p. 05014

Abstract

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N co-doped graphene quantum dots (N-GQDs) incorporated with nanocubic likes titanium dioxide (TiO2) are synthesized via facile hydrothermal method. The morphology features of the synthesized N-GQDs/TiO2 nanocomposites are seen to exhibited in cubic shape. The average lateral size of the synthesized nanocomposites is found to be ~5.1 nm. UV-Vis absorption spectra show vastly improvement in the visible light range when N-GQDs is introduced to TiO2. The photocatalytic activity clearly demonstrated its solar light harvesting capability of prepared nanocomposites by photodegrading 4-chlorophenol (4-CP) under sunlight irradiation.