Ultraviolet‐shielding and water resistance properties of graphene quantum dots/ polyvinyl alcohol composite-based film


  • Sutthipoj Wongrerkdee Department of Physics, Faculty of Liberal Arts and Science, Kasetsart University Kamphaeng Saen Campus, Nakhon Pathom 73140, Thailand
  • Pichitchai Pimpang Faculty of Science and Technology, Pibulsongkram Rajabhat University, Phitsanulok 65000, Thailand


Graphene quantum dots, UV‐shielding, Optical transmittance, UV absorption, Water resistance


The Ultraviolet‐shielding (UV‐shielding) and water resistance properties of graphene quantum dots/polyvinyl alcohol (GQDs/PVA) composite-based film have been investigated. The GQDs/PVA composite-based films were fabricated with different GQDs concentrations of 0, 5, 10, 15, and 20 wt%. The optical property of GQDs was carried out by utilizing fluorescence spectroscopy. Characterizations of GQDs/PVA composite-based films were performed by using FT-IR spectroscopy, and UV-vis spectroscopy. It was found that GQDs exhibited the strongest excitation wavelength in the UV range. GQDs/PVA composite-based films offered an improved UV-shielding capacity when compared to PVA films and glass. Particularly, the GQDs/PVA composite-based film containing 20 wt% GQDs exhibited a UV transmittance of 9.8%, combined with 84% optical transparency. For humidity environment application, the highest contact angle was explored for the 10 wt% GQDs contents suggesting sustainability for humidity environment application. Accordingly, GQDs played an important role in UV-shielding by considering the effect of UV absorption of GQDs and the UV absorption of GQDs can be explained in terms of the photon excitation by UV light. This GQDs/PVA composite could be potentially applied as transparent UV-protective coatings for pharmaceutical packing, food products packing, and UV-shielding or UV filter glass.


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How to Cite

S. Wongrerkdee and P. Pimpang, “Ultraviolet‐shielding and water resistance properties of graphene quantum dots/ polyvinyl alcohol composite-based film”, J. Met. Mater. Miner., vol. 30, no. 4, pp. 90-96, Dec. 2020.



Original Research Articles