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Production of cationic cellulose microfibers (CMF) and its application on removal of congo red dye from wastewater

Grant number: 21/09773-9
Support Opportunities:Scholarships in Brazil - Scientific Initiation
Effective date (Start): December 01, 2021
Effective date (End): January 31, 2023
Field of knowledge:Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
Principal Investigator:Aldo Eloizo Job
Grantee:Maria Vitória Guimarães Leal
Host Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil
Associated scholarship(s):22/00439-1 - Production of a new hybrid cationic cellulose microfiber (cCMF) and CuNPs as a catalytic agent applied on Congo Red dye photodegradation, BE.EP.IC


Water contamination by organic contaminants such as dyes has been concerning scientific society around the world, being a recurrent topic in scientific literature. Due the textile sector's importance and the huge amount of wastewater generated, dyes become dangerous not only by being on wastewater, but also for their persistence and interactions that can lead to environmental and human health damage. Conventional water treatment methods and technologies have been shown to be ineffective ways to remove most of these contaminants. Therefore, it becomes essential to look for alternative methods to treat wastewater. The adsorption process stands out for its low cost, high efficiency and ease operation. Among the adsorbent materials, biosorbents have been standing out for being an eco-friendly, made from renewable sources and low-cost material. Thereby, it is intended to produce functionalized cellulose microfibers with cationic property (cDAC), from agro-industrial waste generated by sugarcane industry and study its use on congo red dye removal from wastewater. The microfibers will be characterized by their chemical, structural and morphological properties. Adsorption and desorption tests of congo red dye according to its initial concentration, solution's pH and contact time will be performed. This proposal is part of the FAPESP INCT Thematic Project (2014/50869-6) (INEO) between Jul/2017-Jun/2023 and provides a 03-months of sandwich period (BEPE) at Universidad Austral do Chile, in Valdivia. (AU)

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
GOMES, ANDRESSA SILVA; LEAL, MARIA VITORIA GUIMARAES; TOLOSA, GABRIELI ROEFERO; CABRERA, FLAVIO CAMARGO; DOGNANI, GUILHERME; JOB, ALDO ELOIZO. Cationic dialdehyde cellulose microfibers for efficient removal of eriochrome black T from aqueous solution. Bioresource Technology, v. 380, p. 8-pg., . (20/06577-1, 21/09773-9)
LEAL, MARIA VITORIA GUIMARAES; GOMES, ANDRESSA SILVA; TOLOSA, GABRIELI ROEFERO; DOGNANI, GUILHERME; JOB, ALDO ELOIZO. pH dependence of glyphosate adsorption from aqueous solution using a cationic cellulose microfibers (cCMF) biosorbent. Pure and Applied Chemistry, v. 95, n. 9, p. 10-pg., . (14/50869-6, 20/06577-1, 21/09773-9)

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