Removal of arsenic with zerovalent iron nanoparticles in the dark and under UV-vis light

I.K. LEVY; C. RAMOS; G. CUSTO; M.I. LITTER; M. MIZRAHI; F. REQUEJO

Buenos Aires

Congreso; 5th Int. Congress on Arsenic on the Environment; 2013

Removal of As(III) from aqueous solutions using zerovalent iron nanoparticles (nZVI) was studied at different As/Fe ratios, in the dark or under UV-vis irradiation, and in the presence of O2 or anoxic conditions. Solid products were analyzed by Mössbauer and XANES spectroscopy correlating As and Fe speciation with removal efficiency.