Related Experiment Video
Updated: Mar 15, 2026
Deposition of Porous Sorbents on Fabric Supports
Published on: June 12, 2018
Sawdust Derivative for Environmental Application: Chemistry, Functionalization and Removal of textile dye from
Thais F Pinto1, Cícero W B Bezerra1, Domingos S A Silva1
1Departamento de Química/CCET, Universidade Federal do Maranhão, Avenida dos Portugueses, s/n, Campus do Bacanga, 65080-540 São Luís, MA, Brasil.
Abstract:
The adsorption of Violet Remazol 5R (VR 5) on wood sawdust modified with succinic anhydride (SSA) as a function of contact time, pH, and initial dye concentrations was investigated using a batch technique under ambient conditions. The SSA obtained was confirmed by IR spectroscopy, thermogravimetry and 13C NMR, and degrees of substitution (DS) were calculated. A study on the effect of the pH on the adsorption of VR 5 showed that the optimum pH was 2.0. The interactions were assayed with respect to the pseudo-first-order and pseudo-second-order kinetic models, and were found to follow closely the pseudo-second-order. The isotherm was adjusted to the Langmuir, the Freundlich and the Temkin sorption models. SSA is a promising material for the removal of dye textile from aqueous solutions, and under conditions studied the removal percentage achieved was 51.7%.
