Cost-effective core@shell structured zero-valent iron nanoparticles @ magnetic (nZVI@Fe₃O₄) for Cr(vi) removal from aqueous solutions: preparation by disproportionation of Fe(ii).

ABSTRACT: Nanoscale zero-valent iron (nZVI) and its composites are known for their excellent ability to remove Cr(vi), but their preparation can be expensive due to the reduction processes. This study presents a cost-effective method to prepare core@shell structured nZVI@Fe₃O₄ nanocomposites using a novel Fe(ii) disproportionation reaction. The nZVI@Fe₃O₄ was thoroughly characterized using various techniques, including FESEM, HRTEM, EDS, XPS, XRD, FTIR, and VSM. Batch experiments were performed to evaluate the removal efficiency of nZVI@Fe₃O₄ in eliminating Cr(vi) ions from aqueous solutions, while classical models were employed to investigate the influencing factors associated with the removal process. The results showed that a 0.7 m

SUBMITTER: He C 

PROVIDER: S-EPMC10485737 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature