ZrO2/CeO2 nanocomposites were prepared using the co-precipitation (ZCP11, ZCP12 and ZCP21 samples) and hybrid combustion-ultrasonication (ZC11, ZC12 and ZC21 samples) methods, following by the calcination. The characterization of the synthesized ZrO2/CeO2 nanocomposites was achieved by utilizing several analytical techniques such as High-resolution transmission electron microscopy, X-ray diffraction, Fourier transforms infrared spectra, BET method and Field emission scanning electron microscopy. The optimum conditions were evaluated from the batch method: pH = 3, 250 mg/L of AG1 dye, 0.05 g dose adsorbents, and equilibrium time (90–200 min according to the sample). The adsorption isotherm, kinetic and mechanism models analyzed using the extracted experimental data for the elimination of Acid Green 1 dye over ZCP11 and ZC11 samples. Besides, the thermodynamic factors were …