Adsorption of dyes indosol blue, Indosol orange and drimarene red in aqueous solution by white clay

Abstract

Currently, the index of the use of activated carbon as adsorbent in the treatment of water contaminated by dyes is constant due to its very developed porosity. However, due to the way this material is produced, its high cost and scarcity, it is necessary to search for alternative materials that guarantee the same efficiency. This study investigated the efficiency of white clay as an adsorbent for Indosol Blue (IB), Indosol Orange (IO) and Drimarene Red (DR). The adsorption data showed that the kinetic processes agreed with the pseudo-second order model. The adsorption processes were better adjusted to the Langmuir isotherm, indicating a chemical adsorption.