highly significantp < 0.0001
As summarized in Table 4 , the regression analysis yielded highly significant F -values of 62.58 ( p < 0.0001) for the Cu–Fe LDH system and 49.28 ( p < 0.0001) for the Cu–Fe MO system, thereby confirming the model's substantial statistical relevance. 9 A strong correlation between experimental and predicted values is evidenced by a R 2 of 0.98.