Monolayer sorption capacity of copper(II), cadmium(II), and lead(II) from aqueous solution onto the surface of activated carbon prepared from Terminalia catappa leaf samples with reference to the calculation of thermodynamic parameters from Langmuir isotherm constant

High efficient removal of lead(II) and cadmium(II) ions from multi-component aqueous solutions using polyacrylic acid acrylonitrile talc nanocomposite

“…The monolayer capacities (Q max ) of P(AA-AN)-talc for the sorption of Pb 2+ , Cd 2+ , Co 2+ , Zn 2+ , and Sr 2+ was compared with other sorbents reported in the literature. As represented in Table 8, the monolayer capacities of P(AA-AN)-talc toward the studied cations are higher than the previously reported values which suggested that P(AA-AN)-talc is a promising sorbent to remove Pb 2+ , Cd 2+ , Co 2+ , Zn 2+ , and Sr 2+ from aqueous solutions (Annadurai et al 2003;Anitha et al 2015;Ghasemi et al 2018;Abou-Lilah et al 2020;Hassan et al 2020;Herrera et al 2020;Abass et al 2021aAbass et al , 2022cKayranli 2021;Alsehli 2021;Abou-Mesalam et al 2022).…”