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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Iron Nitrate Modified Cotton and Polyester Textile Fabric Applied for Reactive Dye Removal from Water Solution

Full text
Author(s):
Jenny S. Komatsu ; Beatriz M. Motta [2] ; Rodolfo S. Tiburcio [3] ; Ana M. Pereira Neto [4] ; Pol W. G. de Pape [5] ; Dalmo Mandelli [6] ; Wagner A. Carvalho [7]
Total Authors: 7
Document type: Journal article
Source: Journal of the Brazilian Chemical Society; v. 32, n. 5, p. 964-977, 2021-04-30.
Abstract

In this work, we investigated the use of cotton scraps in natura and modified with iron nitrate, in the adsorption of one of the main water contaminants of the textile industries, the reactive black dye. Special attention was paid to the appropriate destination of the spent adsorbent, in compliance with the precepts of the circular economy. Cotton and polyester are excellent candidates for adsorbents and are produced on a large scale worldwide, but fabric wastes do not yet have a well-established method of application. We found that fabrics containing different types of fibers or colors maintain the ability to remove dye. The retention promoted by the cotton fabric in natura reached 18.8 mg g-1. After treatment with iron ions, there was an increase in the dye adsorption capacity to 31.0 mg g-1. In addition, the spent iron-containing adsorbent was pyrolyzed at 973 K, resulting in an activated magnetic carbon with a specific surface area ranging from 300 to 565 m2 g-1. Thus, it was possible to convert the used adsorbent into a new material with wide application possibilities. (AU)

FAPESP's process: 12/50718-2 - Effect of process conditions of the briquettes' properties produced from sugarcane bagasse
Grantee:Juliana Tófano de Campos Leite Toneli
Support Opportunities: Regular Research Grants
FAPESP's process: 17/24931-4 - Polyols conversion promoted by alternative catalysts under conventional and microwave heating
Grantee:Wagner Alves Carvalho
Support Opportunities: Regular Research Grants
FAPESP's process: 11/51902-9 - Simulation of 1st generation sugarcane biorefinery in EMSO platform
Grantee:Antonio Maria Francisco Luiz Jose Bonomi
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants