Fig. 9

(a) Normal probability distribution of residuals (b) Experimental predicted values (c) Random plot of residuals in terms of efficiency fitting values for biodiesel synthesis from WCO employing αFe2O3/CuO nanocomposite.

(a) Normal probability distribution of residuals (b) Experimental predicted values (c) Random plot of residuals in terms of efficiency fitting values for biodiesel synthesis from WCO employing αFe2O3/CuO nanocomposite.