extremely significantP-value < 0.0001
able 4 : the coefficient of determination R 2 of the model is 0.9742, meaning the model can explain 97.42% of the adsorption rate variation, which is much higher than the fitting requirement of general regression models (usually R 2 ≥0.95 is considered excellent fitting); the synergistic results of extremely significant model P-value < 0.0001 and non-significant lack-of-fit term P = 0.4314 > 0.05 not only confirm that the model equation has extremely high statistical reliability within the experimental range, but also indicate that the model does not miss key influencing factors, which can effectively avoid the in