Table 2 Adsorption capacity of silica surface, in situ immobilized by 4-vinylpyridine-styrene copolymer towards of Cu(II), Pb(II), Fe(III), and Ni(II) ions in the static mode
Ion | Adsorption capacity | |||
---|---|---|---|---|
Silica | Synthesized composite | |||
mmol/g | mg/g | mmol/g | mg/g | |
Fe(III) | 0.008 | 0.45 | 0.027 | 1.53 |
Pb(II) | 0.002 | 0.41 | 0.075 | 15.54 |
Ni(II) | 0.008 | 0.47 | 0.074 | 4.34 |
Cu(II) | 0.005 | 0.32 | 0.029 | 1.84 |