Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Effect of contact time and solution pH on sorption capacity of Cd(II), Pb(II) and Zn(II). A) Sorption kinetics during the first 24 h using a background solution with initial pH 7, t = 22 ± 2 °C, the line is a second order kinetic model fit. B) Effect of background solution pH on sorption capacity (means ± standard deviation, n = 3), contact time = 24 h, t = 22 ± 2 °C.
