Photochemical Transformation of Graphene Oxide in Sunlight

We investigated the photochemical fate of Graphene oxide under environmentally relevant sunlight conditions

Wen-Che Hou; Indranil Chowdhury; David G. Goodwin; W. Matthew Henderson; D. Howard Fairbrother; Dermont Bouchard; Richard G. Zepp

2015

Key concepts

Scholarcy highlights

  • Graphene oxide is promising in scalable production and has useful properties that include semiconducting behavior, catalytic reactivity, and aqueous dispersibility
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  • Regardless, the reduced GO species themselves persist after extended irradiation equivalent to 2 months in natural sunlight, even "}" class="meta-data"/>
  • We investigated the photochemical fate of GO under environmentally relevant sunlight conditions
  • GO was shown to photodisproportionate to CO2, reduced materials similar to reduced GO that are fragmented compared to the starting material, and low molecular-weight species
  • Regardless, the rGO species themselves persist after extended irradiation equivalent to 2 months in natural sunlight, even in the presence of dissolved oxygen
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