dor_id: 4129805

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351.#.#.b: Journal of Applied Research and Technology

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856.4.0.u: https://jart.icat.unam.mx/index.php/jart/article/view/1524/916

100.1.#.a: Cely Bautista, María Mercedes; Cardozo Arrieta, Beatriz María; Jaramillo Colpas, Javier Enrique; Moreno Aldana, Luis Carlos; Valencia Ríos, Jesús Sigifredo; Castellar Ortega, Grey Cecilia

524.#.#.a: Cely Bautista, María Mercedes, et al. (2022). Evaluation of diatomaceous earth in the removal of crystal violet dye in solution. Journal of Applied Research and Technology; Vol. 20 Núm. 4, 2022; 387-398. Recuperado de https://repositorio.unam.mx/contenidos/4129805

245.1.0.a: Evaluation of diatomaceous earth in the removal of crystal violet dye in solution

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias Aplicadas y Tecnología, UNAM

264.#.0.c: 2022

264.#.1.c: 2022-08-31

653.#.#.a: diatomaceous earth; crystal violet; adsorption isotherms; adsorption capacity

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico gabriel.ascanio@icat.unam.mx

884.#.#.k: https://jart.icat.unam.mx/index.php/jart/article/view/1524

001.#.#.#: 074.oai:ojs2.localhost:article/1524

041.#.7.h: eng

520.3.#.a: In this research, the adsorption capacity of diatomaceous earth in the removal of the crystal violet dye (CV) in aqueous solution was evaluated. The experimental methodology began with the determination of the texture properties by adsorption-desorption isotherms with N2 a 77 K, the identification of functional groups by Fourier transform infrared spectrophotometry (FTIR), morphology by scanning electron microscopy (SEM) and, the pH of the isoelectric point by the point of zero charge (PZC). A categorical multifactorial design was developed with factors such as the initial concentration of the dye (300-1000 mg/dm3), the temperature (30, 35 and 40ºC) and the initial pH of the solution (5, 6, 7 and 8). The maximum adsorption capacity was of 96.1 mg/g up 30ºC and pH 8, satisfactorily fitting the experimental data to the Langmuir isotherm model with R2 = 0.99, suggesting a monolayer adsorption mechanism on a homogeneous surface. In conclusion, diatomaceous earth can be considered as an efficient adsorbent in the removal of CV in aqueous solution.

773.1.#.t: Journal of Applied Research and Technology; Vol. 20 Núm. 4 (2022); 387-398

773.1.#.o: https://jart.icat.unam.mx/index.php/jart

022.#.#.a: ISSN electrónico: 2448-6736; ISSN: 1665-6423

310.#.#.a: Bimestral

300.#.#.a: Páginas: 387-398

264.#.1.b: Instituto de Ciencias Aplicadas y Tecnología, UNAM

doi: https://doi.org/10.22201/icat.24486736e.2022.20.4.1524

harvesting_date: 2023-11-08 13:10:00.0

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Artículo

Evaluation of diatomaceous earth in the removal of crystal violet dye in solution

Cely Bautista, María Mercedes; Cardozo Arrieta, Beatriz María; Jaramillo Colpas, Javier Enrique; Moreno Aldana, Luis Carlos; Valencia Ríos, Jesús Sigifredo; Castellar Ortega, Grey Cecilia

Instituto de Ciencias Aplicadas y Tecnología, UNAM, publicado en Journal of Applied Research and Technology, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Cely Bautista, María Mercedes, et al. (2022). Evaluation of diatomaceous earth in the removal of crystal violet dye in solution. Journal of Applied Research and Technology; Vol. 20 Núm. 4, 2022; 387-398. Recuperado de https://repositorio.unam.mx/contenidos/4129805

Descripción del recurso

Autor(es)
Cely Bautista, María Mercedes; Cardozo Arrieta, Beatriz María; Jaramillo Colpas, Javier Enrique; Moreno Aldana, Luis Carlos; Valencia Ríos, Jesús Sigifredo; Castellar Ortega, Grey Cecilia
Tipo
Artículo de Investigación
Área del conocimiento
Ingenierías
Título
Evaluation of diatomaceous earth in the removal of crystal violet dye in solution
Fecha
2022-08-31
Resumen
In this research, the adsorption capacity of diatomaceous earth in the removal of the crystal violet dye (CV) in aqueous solution was evaluated. The experimental methodology began with the determination of the texture properties by adsorption-desorption isotherms with N2 a 77 K, the identification of functional groups by Fourier transform infrared spectrophotometry (FTIR), morphology by scanning electron microscopy (SEM) and, the pH of the isoelectric point by the point of zero charge (PZC). A categorical multifactorial design was developed with factors such as the initial concentration of the dye (300-1000 mg/dm3), the temperature (30, 35 and 40ºC) and the initial pH of the solution (5, 6, 7 and 8). The maximum adsorption capacity was of 96.1 mg/g up 30ºC and pH 8, satisfactorily fitting the experimental data to the Langmuir isotherm model with R2 = 0.99, suggesting a monolayer adsorption mechanism on a homogeneous surface. In conclusion, diatomaceous earth can be considered as an efficient adsorbent in the removal of CV in aqueous solution.
Tema
diatomaceous earth; crystal violet; adsorption isotherms; adsorption capacity
Idioma
eng
ISSN
ISSN electrónico: 2448-6736; ISSN: 1665-6423

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