Applications and Working Mechanism of Fe2O3 Nanoparticle and Its Composite for Wastewater Treatment

The impacts of various added substances on the morphology and related photocatalytic properties of different hematite (α-Fe2O3) nanostructures were examined. α-Fe2O3 croissant-like designs and finished microspheres were framed by aqueous treatment at 120 °C for 6 h within the sight of NaCl, Na2SO4, and Na2C2O4 as added substances, separately. After heat treatment in air, the photocatalytic movement of the α-Fe2O3 powder was surveyed by degrading methyl orange (MO) under UV light with hydrogen peroxide (H2O2) as an activator. The α-Fe2O3 progressive designs displayed the best photocatalytic activity with a 76.5% evacuation or degradation of dye molecules. This is credited to the high surface region of the iron oxide like morphology, which gives more dynamic locales for the degradation of dyes. The activation energy has also been well compared to the kinetic and isotherm models in the review, which shows that degradation of dyes on the outer layer of iron oxide is much more effective.