Microwave-Induced Combustion Design of Macro-Structured Sponge-Like CeO2 Nanophotocatalyst: Impressive Degradation of Crystal Violet and Acid Orange 7

In this research, the visible-light-active CeO2 nanophotocatalyst has been prepared by microwave combustion method which has shown a macro and sponge like structure and its performance was evaluated in the degradation of crystal violet (CV) and acid orange 7 (AO7). As a result, CeO2 could approximately eliminate 5 mg/L CV and 50 mg/L AO7 at about 93.9 and 73.1% after 150 min irradiation, respectively. The mentioned nanophotocatalyst was characterized by XRD and FESEM analyses. The high activity of this nanophotocatalyst could be devoted to the formation of defects in which might have been increased the light harvesting as well as the range of light absorption by macro-structured sponge-like CeO2. Therefore, the amount of excitons (electron-hole pairs) will increase and their recombination rate decrease. Besides, the existence of macropores could help to improve and promote the surface adsorption of pollutants molecules

کلیدواژه های Microwave-Induced Combustion Design of Macro-Structured Sponge-Like CeO2 Nanophotocatalyst: Impressive Degradation of Crystal Violet and Acid Orange 7:

Microwave-Induced Combustion ، Macro-Structured Sponge-Like CeO2 ، Nanophotocatalyst ، Dye Pollutants