Structural change after the leaching test of metallic iron(Fe), magnetite(Fe3O4), and Fe-Fe3O4 mixture was investigated by 57Fe-M�ssbauer spectroscopy and X-ray diffraction method(XRD). From the M�ssbauer spectra, a decrease in the absorption area attributed to Fe in the Fe-Fe3O4 mixture was observed from 44.7 to 21.9 % after 7day leaching. A precipitation of Fe3O4 was confirmed from the XRD pattern. On contrary, no changes in the M�ssbauer spectra were found in the case of Fe and Fe3O4, respectively. It can be concluded that metallic iron was rapidly oxidized only when it is mixed with Fe3O4.

Polluted water purifying ability and local structure of the Fe-Fe<sub>3</sub>O<sub>4</sub> mixture

239th National Meeting (2010)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.

Polluted water purifying ability and local structure of the Fe-Fe3O4 mixture

Polluted water purifying ability and local structure of the Fe-Fe₃O₄ mixture