Characterization and mechanism analysis of activated carbon fiber felt-stabilized nanoscale zero-valent iron for the removal of Cr(VI) from aqueous solution

- ACFF was selected as the support material of NZVI.
- Cr(VI) and total Cr removal on ACFF-NZVI was much higher than that on ACFF and NZVI.
- Most toxic Cr(VI) was transformed to nontoxic Cr(III) by the reduction of ACFF-NZVI.
- XPS and FTIR analysis were used to investigate the Cr(VI) removal mechanisms.