Fast Identification and Quantification of Graphene Oxide in Aqueous Environment by Raman Spectroscopy.

ABSTRACT: Today, graphene nanomaterials are produced on a large-scale and applied in various areas. The toxicity and hazards of graphene materials have aroused great concerns, in which the detection and quantification of graphene are essential for environmental risk evaluations. In this study, we developed a fast identification and quantification method for graphene oxide (GO) in aqueous environments using Raman spectroscopy. GO was chemically reduced by hydrazine hydrate to form partially reduced GO (PRGO), where the fluorescence from GO was largely reduced, and the Raman signals (G band and D band) were dominating. According to the Raman characteristics, GO was easily be distinguished from other carbon nanomaterials in aqueous environments, such as carbon nanotubes, fullerene and carbon nanopartic

SUBMITTER: Yang S 

PROVIDER: S-EPMC7221548 | biostudies-literature | 2020 Apr

REPOSITORIES: biostudies-literature