Carbon nanotubes promote Cr(VI) reduction by alginate-immobilized Shewanella oneidensis MR-1

- Impregnating NWCNTs into alginate beads for Shewanella oneidensis MR-1 immobilization.
- NWCNTs significantly accelerated electron transfer from cells to Cr(VI).
- NWCNTs-contained beads showed higher Cr(VI) reduction rates than non-CNT ones.
- Optimal MWCNTs content, temperature and pH for Cr(VI) reduction were evaluated.