Abstract
Different sized graphene quantum dots (GQDs) have been synthesized by an inexpensive wet chemical method using bird charcoal as a precursor. Obtained GQDs found to have luminescence and visible light absorption. These GQDs are further coupled with titanium dioxide (TiO2) to form TiO2–GQDs nanocomposites. GQD nanostructures exhibit band gap tunability and have the potential to enhance the photoabsorption in TiO2. The hybrid combination of the nanomaterials decrease the recombination of charge carriers, increase charge carrier mobility, and improve the overall photoconversion efficiency. The composites exhibit higher photocatalytic activity and rate constants value than pure TiO2.
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Acknowledgments
This project is the result of the combined efforts and leadership of many valued individuals. We would like to thank Professor Ewelina Lucow’s for her guidance through the progression of this project. We also acknowledge support from San Jose State University’s Research, Service and Creative Activity Grant Awards.
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Chinnusamy, S., Kaur, R., Bokare, A. et al. Incorporation of graphene quantum dots to enhance photocatalytic properties of anatase TiO2. MRS Communications 8, 137–144 (2018). https://doi.org/10.1557/mrc.2018.7
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DOI: https://doi.org/10.1557/mrc.2018.7