Sawdust Derivative for Environmental Application: Chemistry, Functionalization and Removal of textile dye from aqueous solution

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%.

Bibliographic Details

Main Authors:	PINTO,THAIS F., BEZERRA,CÍCERO W.B., SILVA,DOMINGOS S.A., SILVA FILHO,EDSON C. DA, VIEIRA,ADRIANA P., AIROLDI,CLAUDIO, MELO,JÚLIO C.P. DE, SILVA,HILDO A.S., SANTANA,SIRLANE A.A.
Format:	Digital revista
Language:	English
Published:	Academia Brasileira de Ciências 2016
Online Access:	http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000401212
Tags:	Add Tag No Tags, Be the first to tag this record!