Facile Synthesis of Hollow MgO Spheres and Their Fluoride Adsorption Properties

Figure 4

(a) Adsorption isotherm of fluoride on the hollow MgO spheres, (b, c) the corresponding Langmuir and Friedrish fitting (pH = 7.0, dosage 1 gL⁻¹).

(a)

(b)

(c)