Publicado

2024-04-10

Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton

Degradación de azul de metileno usando material compuesto de quitosano-Fe2O3 y foto-Fenton

Degradação de azul de metileno usando composto de quitosana-Fe2O3 e foto-Fenton

DOI:

https://doi.org/10.15446/rev.colomb.quim.v52n2.109625

Palabras clave:

Chitosan, Chitosan-Fe2O3, Methylene blue, Total organic carbon, Photodegradation (en)
Quitosano, Quitosano-Fe2O3, Azul de metileno, carbono orgánico total, fotodegradación (es)
Quitosana, Quitosana-Fe2O3, Azul de metileno, Carbono orgânico total, Fotodegradação (pt)

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Autores/as

  • Desnelli Desnelli Department of Chemistry, Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia.
  • Kurnia Ramadhina Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia.
  • Daniel Alfarado Department of Chemistry, Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia.
  • Fatma Fatma Department of Chemistry, Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia.
  • Ady Mara Department of Chemistry, Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia.
  • Muhammad Said Department of Chemistry, Sriwijaya University. Palembang-Prabumulih, South Sumatera, Indonesia. https://orcid.org/0000-0003-2513-2571

This study aims to study the photodegradation process of methylene blue using a synthetic chitosan-Fe2O3 composite and their characterization. Based on the characterization material synthetic, chitosan-Fe2O3 (1:1) composite showed the best material with the smallest crystal size (1.13 nm), the surface morphology was lumpy and had an uneven shape with the composition of the constituent (Carbon (C) 42.88%, Oxygen (O) 48.68%, and Iron (Fe) 29.90%), and showed the smallest energy band gap (1.41 eV) which led us to conclude that the formation of the chitosan-Fe2O3 composite can reduce the energy band gap of Fe2O3. The best composite material then was used to evaluate the activity in degrading methylene blue. The optimum condition in degrading was reached at a contact time of 180 min and pH 9 with a percentage decrease in methylene blue concentration of 90.00%. The effect of concentration variations occurred at 5 ppm with a decrease of 89.62%. Total organic carbon analysis showed that the decrease in methylene blue concentration reached 92.20%. Based on that, it is concluded that the chitosan-Fe2O3 composite could be a potential alternative material to degrade methylene blue.

Este estudio tiene como objetivo estudiar el proceso de fotodegradación del azul de metileno utilizando material sintético compuesto de quitosano-Fe2O3 y su caracterización. Con base en la caracterización del material sintético, el compuesto quitosano-Fe2O3 (1:1) mostró el mejor material con el tamaño de cristal más pequeño (1,13 nm), la morfología de la superficie era grumosa y tenía una forma desigual con la composición del constituyente (carbono (C) 42,88%, oxígeno (O) 48,68% y hierro (Fe) 29,90%), y mostró la banda prohibida de energía más pequeña (1,41 eV), lo que indica que la formación del compuesto de quitosano-Fe2O3 puede reducir la banda prohibida de energía de Fe2O3. Luego se utilizó el mejor material compuesto para ver su actividad en la degradación del azul de metileno. La condición óptima en la degradación se alcanzó con un tiempo de contacto de 180 min y pH 9 con una disminución porcentual en la concentración de azul de metileno del 90,00%. El efecto de las variaciones de concentración se presentó a 5 ppm con una disminución del 89,62%. El análisis de carbono orgánico total mostró que la disminución en la concentración de azul de metileno alcanzó el 92,20%. Con base en esto, se concluyó que el compuesto quitosano-Fe2O3 podría ser un material alternativo potencial para degradar el azul de metileno.

Este trabalho tem como objetivo estudar o processo de fotodegradação do azul de metileno utilizando material sintético compósito quitosana-Fe2O3 e sua caracterização. Com base na caracterização do material sintético, o compósito quitosana-Fe2O3 (1:1) apresentou o melhor material com o menor tamanho de cristal (1,13 nm), a morfologia da superfície era granulosa e apresentava formato irregular com a composição do constituinte (Carbono (C) 42,88%, Oxigênio (O) 48,68% e Ferro (Fe) 29,90%), e apresentou o menor gap de energia (1,41 eV) o que conclui que a formação do compósito quitosana-Fe2O3 pode reduzir o band gap de energia de Fe2O3. O melhor material compósito usado para ver sua atividade na degradação do azul de metileno. A condição ótima de degradação foi alcançada com tempo de contato de 180 minutos e pH 9 com diminuição percentual na concentração de azul de metileno de 90,00%. O efeito das variações de concentração ocorreu a 5 ppm com diminuição de 89,62%. A análise do carbono orgânico total mostrou que a diminuição da concentração de azul de metileno atingiu 92,20%. com base nisso, concluiu que o compósito quitosana-Fe2O3 poderia ser um potencial material alternativo para degradar o azul de metileno.

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Cómo citar

IEEE

[1]
D. Desnelli, K. Ramadhina, D. Alfarado, F. Fatma, A. Mara, y M. Said, «Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton», Rev. Colomb. Quim., vol. 52, n.º 2, pp. 36–42, abr. 2024.

ACM

[1]
Desnelli, D., Ramadhina, K., Alfarado, D., Fatma, F., Mara, A. y Said, M. 2024. Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton. Revista Colombiana de Química. 52, 2 (abr. 2024), 36–42. DOI:https://doi.org/10.15446/rev.colomb.quim.v52n2.109625.

ACS

(1)
Desnelli, D.; Ramadhina, K.; Alfarado, D.; Fatma, F.; Mara, A.; Said, M. Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton. Rev. Colomb. Quim. 2024, 52, 36-42.

APA

Desnelli, D., Ramadhina, K., Alfarado, D., Fatma, F., Mara, A. y Said, M. (2024). Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton. Revista Colombiana de Química, 52(2), 36–42. https://doi.org/10.15446/rev.colomb.quim.v52n2.109625

ABNT

DESNELLI, D.; RAMADHINA, K.; ALFARADO, D.; FATMA, F.; MARA, A.; SAID, M. Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton. Revista Colombiana de Química, [S. l.], v. 52, n. 2, p. 36–42, 2024. DOI: 10.15446/rev.colomb.quim.v52n2.109625. Disponível em: https://revistas.unal.edu.co/index.php/rcolquim/article/view/109625. Acesso em: 4 ago. 2024.

Chicago

Desnelli, Desnelli, Kurnia Ramadhina, Daniel Alfarado, Fatma Fatma, Ady Mara, y Muhammad Said. 2024. «Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton». Revista Colombiana De Química 52 (2):36-42. https://doi.org/10.15446/rev.colomb.quim.v52n2.109625.

Harvard

Desnelli, D., Ramadhina, K., Alfarado, D., Fatma, F., Mara, A. y Said, M. (2024) «Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton», Revista Colombiana de Química, 52(2), pp. 36–42. doi: 10.15446/rev.colomb.quim.v52n2.109625.

MLA

Desnelli, D., K. Ramadhina, D. Alfarado, F. Fatma, A. Mara, y M. Said. «Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton». Revista Colombiana de Química, vol. 52, n.º 2, abril de 2024, pp. 36-42, doi:10.15446/rev.colomb.quim.v52n2.109625.

Turabian

Desnelli, Desnelli, Kurnia Ramadhina, Daniel Alfarado, Fatma Fatma, Ady Mara, y Muhammad Said. «Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton». Revista Colombiana de Química 52, no. 2 (abril 10, 2024): 36–42. Accedido agosto 4, 2024. https://revistas.unal.edu.co/index.php/rcolquim/article/view/109625.

Vancouver

1.
Desnelli D, Ramadhina K, Alfarado D, Fatma F, Mara A, Said M. Methylene blue degradation using chitosan-Fe2O3 composite and photo-Fenton. Rev. Colomb. Quim. [Internet]. 10 de abril de 2024 [citado 4 de agosto de 2024];52(2):36-42. Disponible en: https://revistas.unal.edu.co/index.php/rcolquim/article/view/109625

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