CeO 2 powders were synthesized via a solution combustion method. The product was characterized by X-ray diffraction scanning electron microscope, and BET surface area analysis. The results indicated that the CeO 2 powders present a foaming state with a surface area of 28.17 m 2 g -1 . The adsorption performance of the CeO 2 powders was tested toward the removal of typical pollutants of Cr(VI) and Congo red (CR). The results showed that the adsorption of Cr(VI) and CR onto CeO 2 powders followed the Langmuir isotherm model and pseudosecond-order kinetics, with an adsorption capacity of 5.69 mg g -1 and 35.51 mg g -1 , respectively.

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