Kinetic, thermodynamic and isotherm studies on the removal of rhodamine b dye using acid activated Abutilon Indicum

Abstract

The research of the present work was to investigate the removal of Rhodamine B dye from aqueous solution using Acid Activated Abutilon Indicum leaves (AAAI). Generally, dyes are organic compounds used as colouring products in chemical, textile, paper, printing, leather, plastics and various food industries. There is a need for the treatment of dye contaminated waste water passed out from the industry due to its harmful effects. In this study, the activated carbon prepared from Abutilon Indicum leaves was studied for its potential use as an adsorbent for the removal of a cationic dye, Rhodamine B. The various factors affecting the adsorption viz., initial dye concentration, contact time, adsorbent dose and temperature were evaluated. The experimental data were fitted into the pseudo-second order kinetic model. The equilibrium of adsorption was modeled using the Langmuir and Freundlich isotherms. The objective of the present work suggests that the AAAI can be utilized as a low cost adsorbent for the removal of Rhodamine B dye from aqueous solution.