Preparation of Fe2O3 nanoparticles doped with In2O3 and photocatalytic degradation property for rhodamine B

It is difficult to deal with the industrial wastewater from printing and dyeing due to the high concentration of organics, complex composition, deep chrominance and variable water quality. Herein, this work aimed to design a kind of photocatalyst based on Fe2O3 nanoparticle doped with In2O3, which was used to degrade rhodamine B. The degradation performance of the prepared catalyst for rhodamine B was explored under different conditions including the doped amount of In2O3, photocatalyst dosage, H2O2 content and pH. The degradation efficiency could reach 94% under optimal conditions. In addition, the degradation mechanism of rhodamine B was investigated by analyzing intermediate products obtained with high performance liquid chromatography (HPLC) and liquid chromatography/mass spectrometry (LC-MS). Obviously, this study offers a new possibility for effectively treating large quantities of organic pollutants in the printing and dyeing industry.