Performance and stability of femtosecond laser-irradiated Fe2O3 materials as photocatalysts for methylene blue dye discoloration

The disposal of substances pollutant, such as methylene blue dye (MB), into wastewater, arouses the interest technologies to remove these pollutants. discoloration MB by photocatalysis and using femtosecond laser-irradiated Fe2O3 materials photocatalysts proved be a promising way treat this pollutant. Here, obtained conventional hydrothermal process heat-treatment, subsequently treatment. Materials with mixture irradiated ?-Fe2O3 phases revealed lower crystallinity than samples. irradiation treatment increase in were crucial improve performance sample MB, which reached 90% 75�min solution exposure under UV irradiation. allow greater particle surfaces, coalesced presented distribution medium size, indicating more heterogeneous morphology As result, there was an active sites due density defects generated, facilitated degradation process.