Preparation, characterization and investigation of catalytic activity of Li-doped LaFeO3 nanoparticles

Nanometer oxides Li-doped LaFeO₃ with a high photocatalytic activity were synthesized by the acetic acid based sol-gel route. X-ray diffraction, transmission electron microscopy, differential thermal analysis, atomic absorption spectrum, infrared absorption spectrum analyzer and UN-Vis spectrophotometer technologies were used to characterize the products. The photocatalytic activities of the samples were studied with measurement of effect of photodecomposition of Methyl blue solution and organism in arcylon effluents. The results show that LaFeO₃ doped lithium has better photocatalytic activity than pure LaFeO₃ particles, and the optimum amount doped lithium is x = 0.03.