Role of graphene oxide in mitigated toxicity of heavy metal ions on Daphnia magna.

ABSTRACT: Graphene oxide (GO) is increasingly used and inevitably released into aquatic environments, facilitating its interaction with traditional pollutants such as heavy metal ions. However, the potential effect of GO on the toxicity of heavy metal ions to aquatic animals is unknown. This work aims to assess the toxicity of heavy metal ions (Cu(ii), Cd(ii), and Zn(ii)) on Daphnia magna (D. magna) in the presence of GO. GO nanoparticles remarkably reduced the concentrations of heavy metal ions by adsorption and decreased the metal accumulation in D. magna. The maximum desorption rate of heavy metal ions from metal-adsorbed GO was below 5%. At pH 7.8, with addition of 2 mg L^-1 GO, the 72 h median lethal concentration (LC₅₀) values of Cu(ii), Cd(ii), and Zn

SUBMITTER: Ni L 

PROVIDER: S-EPMC9091651 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature