a simple synthetic technique to produce zno/fe2o3/fe3o4 nanostructures and application as a photocatalyst

in this study, a simple technique was used for synthesizing one-dimensional zno/fe2o3/fe3o4 nanostructures (nss) through heat treatment under vacuum by using a magnetic field at a temperature of 200 °c for 1 h. the photocatalytic effect of the nss were studied by decomposing methyl orange (mo) dye (5 mg/l, ph = 8.1) under ultraviolet illumination. the experimental results indicated that a 33-mg/l zno/fe2o3/fe3o4 ns-containing film on glass could reduce the mo concentration by 37% in 100 min, and the synthesized zno/fe2o3/fe3o4 ns-containing films could be reused to degrade mo solution. moreover, 0.1 g/l of zno/fe2o3/fe3o4 ns-containing powder exhibited an excellent photocatalytic effect and reduced the mo concentration by almost 90% in 100 min.