Biofabrication of iron oxide nanoparticles using manglicolous fungus Aspergillus niger BSC-1 and removal of Cr(VI) from aqueous solution

Abstract Superparamagnetic iron oxide nanoparticles (IONPs) (Fe3O4) of 20-40 nm size were successfully fabricated by using manglicolous (mangrove) fungus Aspergillus niger BSC-1 and utilized for the removal of hexavalent chromium from aqueous solution. The mycosynthesized IONPs were characterized using by UV-Vis spectroscopy, ATR-FTIR spectroscopy, Raman spectroscopy, XRD, electron microscopy (TEM and FESEM), zeta sizer and VSM. Batch experiment revealed the significantly (P