Nano-scale MgO particles were utilized to remove pollutants from water, and the disadvantage in the application of nano-MgO was also discussed. In comparison to other oxide nanoparticles (ZnO, CuO, Fe<sub>2</sub>O<sub>3</sub> and Al<sub>2</sub>O<sub>3</sub>), nano-MgO exhibited better performance in the removal of organic matters and heavy metals (Fe, Mn… (More)