Fig. 5From: Titania-Coated Silica Alone and Modified by Sodium Alginate as Sorbents for Heavy Metal IonsComparison of a the amount of Cu(II), Zn(II), Cd(II), and Pb(II) ions sorbed on ST20 depending on the time and b, c adsorbent amount effect of Cu(II) ions sorption on b ST20 and c ST20-ALG (C0 = 100 mg L− 1, m = 0.1 g, t = 1–240 min, pHCu = 5.45, pHZn = 5.01, pHCd = 5.37, pHPb = 5.24, T = 293 K, A = 7, rpm 180)Back to article page