Research Article

Removal of Cadmium (II), Chromium (III), and Lead (II) Heavy Metal Ions from Water by Graft Copolymerization of Acrylonitrile onto Date Palm Fiber Using H2O2/Fe++ as an Initiator

Figure 6

Effect of the amount of catalyst Fe+2on the % of grafting. AN: 8 ml, H2O2: 0.03 M, temperature: 75°C, time: 60 min, and (∆): % of grafting.