Sorption removal dyes from water by nanocomposite magnetically mineral sorbents

Authors

  • О. В. Макарчук Національний технічний університет України «КПІ», м. Київ, Ukraine
  • Т. А. Донцова Національний технічний університет України «КПІ», м. Київ, Ukraine https://orcid.org/0000-0001-8189-8665

DOI:

https://doi.org/10.20535/2218-93001722015136307

Keywords:

magnetically sorbent, saponite, magnetite, dyes, kinetics, adsorption, magnetic separation

Abstract

The sorption of dyes from aqueous solutions by magnetically sorbent based on saponite and nanomagnetite are considered and shown that it is effective adsorbent for dyes as cationic and anionic nature. The suitability of various kinetic models (pseudo-first and pseudo-second-order) and models of sorption isotherms (Langmuir, Frendlih, Tiomkin and Dubinin-Radushkevych) to describe the adsorption interaction between dyes and adsorbent are analyzed. The rate constants are calculated and found that process of organic dyes adsorption by nanocomposite magnetically sorbent describes the kinetics model of pseudo-second order. Revealed that the process of sorption Malachite green, Congo red, Indigo carmine by magnetically sorbent described Langmuir model.

Published

2015-11-01

Issue

Section

Статті