Cu(II) and Cd(II) Removal Efficiency of Microbially Redox-Activated Magnetite Nanoparticles.

ABSTRACT: Heavy metal pollutants in the environment are of global concern due to their risk of contaminating drinking water and food supplies. Removal of these metals can be achieved by adsorption to mixed-valent magnetite nanoparticles (MNPs) due to their high surface area, reactivity, and ability for magnetic recovery. The adsorption capacity and overall efficiency of MNPs are influenced by redox state as well as surface charge, the latter of which is directly related to solution pH. However, the influence of microbial redox cycling of iron (Fe) in magnetite alongside the change of pH on the metal adsorption process by MNPs remains an open question. Here we investigated adsorption of Cd²⁺ and Cu²⁺ by MNPs at different pH values that were modified by microbial Fe(II) oxidation

SUBMITTER: Bayer T 

PROVIDER: S-EPMC10591504 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature