Porous Methyltrimethoxysilane Coated Nanoscale-Hydroxyapatite for Removing Lead Ions from Aqueous Solutions

Figure 4

EDAX spectrum and element maps of silicium, oxygen, phosphorus, calcium, and lead after the reaction of hydroxyapatite coated with methyltrimethoxysilane with a solution containing 950 mg of Pb/L at pH 3.