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Use of a new zwitterionic cellulose derivative for removal of crystal violet and orange II from aqueous solutions.
Martins, Luide Rodrigo; Catone Soares, Liliane; Alves Gurgel, Leandro Vinícius; Gil, Laurent Frédéric.
Afiliação
  • Martins LR; Group of Organic and Environmental Chemistry (GOEQ), Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, s/n°, Bauxita, 35400-000, Ouro Preto, Minas Gerais, Brazil.
  • Catone Soares L; Group of Physical Organic Chemistry (GPOC), Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, s/n°, Bauxita, 35400-000, Ouro Preto, Minas Gerais, Brazil.
  • Alves Gurgel LV; Group of Physical Organic Chemistry (GPOC), Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, s/n°, Bauxita, 35400-000, Ouro Preto, Minas Gerais, Brazil.
  • Gil LF; Group of Organic and Environmental Chemistry (GOEQ), Department of Chemistry, Institute of Biological and Exact Sciences, Federal University of Ouro Preto, Campus Morro do Cruzeiro, s/n°, Bauxita, 35400-000, Ouro Preto, Minas Gerais, Brazil. Electronic address: laurent@ufop.edu.br.
J Hazard Mater ; 424(Pt B): 127401, 2022 02 15.
Article em En | MEDLINE | ID: mdl-34655866
This study describes the synthesis of a new bioadsorbent with zwitterionic characteristics and its successful application for removal of a cationic dye (crystal violet, CV) and an anionic dye (orange II, OII) from single component aqueous systems. The new bi-functionalized cellulose derivative (MC3) was produced by chemical modification of cellulose with succinic anhydride and choline chloride to introduce carboxylic and quaternary ammonium functional groups on the cellulose surface. MC3 was characterized by several wet chemical and spectroscopic methods. The effects of solution pH, contact time, and initial solute concentration on removal of CV and OII by MC3 were investigated. Studies of the desorption and re-adsorption of the dyes were also carried out. The isotherms for adsorption of CV and OII on MC3 were satisfactorily fitted using the Konda and Langmuir models. MC3 showed experimental maximum adsorption capacities of 2403 mg g-1 for CV and 201 mg g-1 for OII. The desorption and re-adsorption results showed that MC3 could be reused in successive adsorption cycles, which is essential for minimizing process costs and waste generation. The findings showed that MC3 is a versatile biosorbent capable of efficiently removing both cationic and anionic dyes.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Violeta Genciana Tipo de estudo: Prognostic_studies Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Poluentes Químicos da Água / Violeta Genciana Tipo de estudo: Prognostic_studies Idioma: En Revista: J Hazard Mater Assunto da revista: SAUDE AMBIENTAL Ano de publicação: 2022 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda