Development of bioadsorbent material from carboximethilation of the cashew gum.

Authors

DOI:

https://doi.org/10.24979/ambiente.v1i1.941

Keywords:

Gum, Carboxymethylation, Adsorption

Abstract

The use of natural polymers for water treatment has been proposed in recent years, due to their good adsorptive properties, over the years these materials have been increasingly used as adsorbent, as is the case with cashew gum, which is a polysaccharide of easy obtaining and of great abundance in the northeast of Brazil. In this work, the cashew gum was obtained and its structure was modified through carboxymethylation in order to evaluate the adsorption of copper ions. The influence of the relative amount of chloroacetic acid on the degree of substitution of the functional derivative was evaluated. The degree of substitution of the carboxymethyl groups by potentiometric titration was determined and the adsorptive capacity and the potential for adsorption of copper ions by complexometric titrations were determined. The results obtained revealed a replacement percentage of 45.04% and 38.44% for samples 3: 1 and 6: 1 respectively. The adsorptive capacity and the percentage of removal of the 3: 1 and 6: 1 samples were 93.34% and 87.85%, respectively. Thus, it was observed that the carboxymethylated cashew gum with a degree of substitution of 45.04% showed an expressive copper removal capacity, being promising for adsorbing heavy metals.

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Author Biographies

  • Henety Nascimento Pinheiro, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    Possui experiencia em Química, com enfâse em Química. Atualmente é mestrando em ciências naturais pelo programa de pós-graduação em ciências naturais (PPGCN/UECE) e Auxiliar de laboratório no segmento privado na empresa Laboratório Biológico. Tem experiência na área de Química, com ênfase em Química analítica, ambiental e Química de polímeros, atuando principalmente nos seguintes temas: Análises físico-químicas e microbiológicas de águas e efluentes e Desenvolvimento de biomateriais para aplicações em bioadsorventes e biocoagulantes para tratamento de água, e desenvolvimento de sistemas de encapsulamento de fármacos.

  • Micaele Ferreira Lima, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    Graduada em Química pela Universidade Estadual do Ceará (UECE). Mestranda em Ciências Naturais pelo programa de pós-graduação em ciências naturais (PPGCN)

  • Flávia Oliveira Monteiro da Silva Abreu, Ceara State University/UECE, Universidade Estadual do Ceará/UECE

    Graduated in Chemistry from the Federal University of Rio Grande do Sul (2000) and graduated in Chemistry from the Federal University of Rio Grande do Sul (UFRGS) (2005). He holds a Masters (2004) and a Doctorate (2008) in Engineering, with a Concentration area in Materials Science and Technology from the Post-Graduate Program in Mining, Metallurgy and Materials Engineering (PPGEM / UFRGS). Has experience in Materials Science and Chemistry, focusing on the development of new polymeric materials, acting on the following topics: Development of micro and nanoscale polymeric hydrogels for controlled release of active principles, Planning and Factor Analysis for system optimization, chemical modification of polysaccharides, blends of polymeric materials with elastomers and the physical and chemical characterization of polymeric materials. She served as a Regional Scientific Development Fellow (DCR) at the Federal University of Ceará, was a substitute professor at UFRGS (2004-2005) and UECE (2010-2011), and was a professor and researcher in the area of ​​chemistry and materials science at the University of Fortaleza (UNIFOR). She is currently Prof. Assistant in the area of ​​General and Analytical Chemistry (40H/DE) in the Chemistry Course at the State University of Ceará and Professor of the Postgraduate Program in Natural Sciences.

References

abreu, flavia oliveira monteiro da silva; da silva, nilvanalves; sipauba, mateus de sousa; pires, tamarafernandes marques; bomfim, tatianaaraújo; junior, oyrtonazevedo de castro monteiro; forte, maria madalena de camargo. chitosanandgumarabicnanoparticles for heavy metal adsorption. polímeros, são carlos, v. 28, p. 231-238, 10 jul. 2018.

kirchmer, cliff., arboleda, jorge., castro, maria luísa., 1975, polimerosnaturales y suaplicación como ayudantes de floculación, cepis, série documentos técnicos 2, lima, peru.

oliveira, e. f.; paula, h. c. b.; paula, r. c. m. alginate/cashewgumnanoparticles for essentialoilencapsulation. colloidsand surfaces b: biointerfaces. v.113, p.146-151, 2014.

oliveira, e. e et al. xylanfromcorncobs, a promisingpolymer for drug delivery: productionandcharacterization.bioresourcetechnology, n.101, p. 5402-5406, 2010.

paula, h.c.b. et al. preparationandcharacterizationofchitosan/cashewgumbeadsloadedwithlippiasidoidesessentialoil. materialsscienceandengineering: c, v.31, p.173-178, 2011.

porto, b. c.; cristianini, m. evaluationofcashewtreegum (anacardiumoccidentale l.) emulsifyingproperties. lwt – food scienceandtechnology, v. 59, p. 1325-1331, 2014.

rodrigues, l.f.; paula, r.c.m.; costa, s.m.o. - polímeros: ciência e tecnologia - n° 1,31-36 (1993).

silva, d. a.; de paula, r. c. m.; feitosa, j. p. a.; brito, a. c. f.; maciel, j. s.; paula, h. c. b. (2004). carboxymethylationofcashewtreeexudatepolysaccharide. carbohydratepolymers, 58, 163-171

silva, d. r. obtenção e caracterização de micropartículas utilizando goma de cajueiro. 2013. 109 p. dissertação. programa de pós-graduação em ciências farmacêuticas. universidade estadual da paraíba, campina grande. 2013.

silva, d.a. et al. synthesisandcharacterizationofcashewgum/ acrylicacidnanoparticles. material scienceandengineering c, v.29,p.437-441,2009

silva, t. estudo de tratabilidade físico-química com uso de taninos vegetais em água de abastecimento e de esgoto. 1999. 85 f. dissertação (mestrado em saúde pública) – escola de saúde pública. fundação oswaldo cruz, rio de janeiro.

spinelli, v. a., sens, m. l., fávere, v. t. quitosana, polieletrólito natural para o tratamento de água potável. in: 21º congresso brasileiro de engenharia sanitária e ambiental, v. 1, setembro, 2001

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Published

2021-08-31

Issue

2021: Dossier: 1st Environment and Energy Symposium (SiMAE)

Section

Dossiers

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How to Cite

Development of bioadsorbent material from carboximethilation of the cashew gum. Ambiente: Gestão e Desenvolvimento, [S. l.], v. 1, n. 1, 2021. DOI: 10.24979/ambiente.v1i1.941. Disponível em: https://periodicos.uerr.edu.br/index.php/ambiente/article/view/941. Acesso em: 2 mar. 2026.

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