Defluoridation of Aqueous Solution Using Thermally Activated Biosorbents Prepared from Adansonia digitata Fruit Pericarp

Figure 2

pH at point of zero charge for TAADFPs activated at (a) 450°C, (b) 500°C, (c) 550°C, and (d) 600°C.

(a)

(b)

(c)

(d)