@article{Myronyuk_Vasylyeva_Mandzyuk_Bezruka_Dmytrotsa_2018, title={The kinetics of adsorption binding of Ba2+ ions by trimethylsilylated silica: Array}, volume={19}, url={https://journals.pnu.edu.ua/index.php/pcss/article/view/80}, DOI={10.15330/pcss.19.1.66-73}, abstractNote={<p>It was established that incomplete substitution of free silanols of fumed silica surface on (CH<sub>3</sub>)<sub>3</sub>Si-groups leads to an increase in the ability of modified SiO<sub>2</sub> to adsorb Ba<sup>2+</sup> cations from an electrolyte solution. Silica with 48.3% of trimethylsilyl (TMS) groups adsorbs 1.8 mmol·g<sup>-1</sup> of Ba<sup>2+</sup> cations from 0.01 M BaCl<sub>2</sub> solution, that in 3 times more than the adsorption of these cations by unmodified silica. It was found that the adsorption of cations by basic and modified silica is well described by the pseudo-second order Lagergren equation. The high adsorption activity of silica with chemisorbed TMS-groups is due to the formation of local regions with relatively large values of negative and positive electrostatic potentials in the vicinity of grafted TMS-groups.</p>}, number={1}, journal={Physics and Chemistry of Solid State}, author={Myronyuk, I. F. and Vasylyeva, H. V. and Mandzyuk, V. I. and Bezruka, N. A. and Dmytrotsa, T. V.}, year={2018}, month={Mar.}, pages={66–73} }