Figure 7

Removal efficiency of Congo red dye from the aqueous solution onto WFS coated with Mg/Fe-LDH in the recycle tests at room temperature for pH = 3, dosage = 0.1 g/50 mL and Co = 500 mg/L).

Removal efficiency of Congo red dye from the aqueous solution onto WFS coated with Mg/Fe-LDH in the recycle tests at room temperature for pH = 3, dosage = 0.1 g/50 mL and Co = 500 mg/L).