Research Article

Study about Doping Ion La3+ onto Surface of Pyrolusite Ore for Removing Simultaneously Both Fluoride and Phosphate from Wastewater

Figure 1

Scanning electron microscopy (SEM) image of Pyrolusite ore, (a) natural Pyrolusite ore, and (b) La3+-doped Pyrolusite ore at La3+/Fe3+ molar ratio of 1 : 1.
(a)
(b)