статья в журнале

En

Russian Chemical Bulletin

ISSN:10665285

2020

Baulin, D.V.¹

Baulin, V.E.¹

Tsivadze, A.Y.¹

10.1007/s11172-020-3042-x

The sorption of lead by an impregnated type sorbent based on the phosphorylpodand, 1,8-bis[2-(diphenylphosphorylmethyl)phenoxy]-3,6-dioxaoctane, was studied. Sorption isotherms were plotted, as well as the data on kinetics, selectivity, and dynamics of sorption were obtained. The phosphorylpodand-based sorbent attains the sorption equilibrium of lead extraction with a high rate. The maximum sorbent capacity was achieved when the equilibrium concentration of lead in solutions was more than 150 mg L−1. The 1,8-bis[2-(diphenyl-phosphorylmethyl)phenoxy]-3,6-dioxaoctane-based sorbent shows a high selectivity for lead sorption from neutral solutions. The output curve of lead sorption was plotted. The dynamic exchange capacity and total dynamic capacity of the obtained sorbent were determined. © 2020, Springer Science+Business Media LLC.

1,8-bis[2-(diphenylphosphorylmethyl)phenoxy]-3,6-dioxaoctane, isotherm, kinetics, lead, selectivity, sorbentsorption