Experimental and simulation results of the adsorption of Mo and V onto ferrihydrite.

ABSTRACT: This study aims to highlight discrepancies between experimental and simulation linked to the mechanisms of Mo and V adsorption onto ferrihydrite (FHY) nanoparticles. We have measured adsorption capacities and uptake efficiencies and then fitted and compared these with outputs from various geochemical and adsorption models that were run as a function of pH, surface area (SA) and ferrihydrite particles size distributions. Our results revealed that the experimental data for the Mo system could be fitted very well, but this was not the case for the V system, when a model default value for the SA of FHY of 600 m2 g-1 was used. The discrepancy in the results for the V system can be explained by the lack of specific V species and/or associated constants in databases and variation in software vers

SUBMITTER: Brinza L 

PROVIDER: S-EPMC6362054 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature