Activated Biochar from Pineapple Crown Biomass: A High-Efficiency Adsorbent for Organic Dye Removal

Francisco J. Cano, Odín Reyes-Vallejo (), Rocío Magdalena Sánchez-Albores, Pathiyamattom Joseph Sebastian, Abumalé Cruz-Salomón, Maritza del Carmen Hernández-Cruz, Wilber Montejo-López, Mayram González Reyes, Rocío del Pilar Serrano Ramirez and Héctor Hiram Torres-Ventura
Additional contact information
Francisco J. Cano: Institute of Molecules & Materials of Le Mans (IMMM)—UMR CNRS 6283, Le Mans Université, 72000 Le Mans, France
Odín Reyes-Vallejo: Sección de Electrónica de Estado Sólido-Ingeniería Eléctrica (SEES), CINVESTAV—IPN, San Pedro Zacatenco, Ciudad de México 07360, Mexico
Rocío Magdalena Sánchez-Albores: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Pathiyamattom Joseph Sebastian: Instituto de Energías Renovables-UNAM (IER-UNAM), Temixco 62580, Mexico
Abumalé Cruz-Salomón: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Maritza del Carmen Hernández-Cruz: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Wilber Montejo-López: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Mayram González Reyes: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Rocío del Pilar Serrano Ramirez: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico
Héctor Hiram Torres-Ventura: Escuela de Ciencias Químicas, Universidad Autónoma de Chiapas (UNACH), Ocozocoautla de Espinosa 29140, Mexico

Sustainability, 2024, vol. 17, issue 1, 1-23

Abstract: Renowned for its versatility in environmental applications, biochar exhibits substantial potential to enhance anaerobic digestion, facilitate carbon sequestration, and improve water treatment through its highly efficient adsorption mechanisms. This study focuses on biochar derived from pineapple crown biomass, produced through slow pyrolysis, and its efficiency in removing organic dyes from contaminated water. The structural, morphological, and surface properties of both biochar and chemically activated biochar samples were comprehensively characterized using a range of techniques, including XRD, FTIR, XPS, BET surface area analysis, and SEM microscopy. The adsorption performance was evaluated using methylene blue (MB), rhodamine B (RhB), and malachite green (MG) dyes as model contaminants, with particular emphasis on the contact time on dye removal efficiency. Initial results showed removal rates of 10.8%, 37.5%, and 88.4% for RhB, MB, and MG, respectively. Notably, chemical activation significantly enhanced the adsorption efficiency, achieving complete (100%) removal of all tested dyes. Complete adsorption of MB and MG occurred within 9 min, indicating rapid adsorption kinetics. Adsorption data fit well with pseudo-second-order kinetics (R 2 = 0.9748–0.9999), and the Langmuir isotherm (R 2 = 0.9770–0.9998) suggested monolayer adsorption with chemical interactions between dyes and biochar. The intraparticle diffusion model further clarified the adsorption mechanisms. These findings demonstrate the efficacy of activated biochar for dye removal and highlight the potential of pineapple crown biomass in environmental remediation.

Keywords: biochar; adsorption; dye removal; pineapple crown biomass; environmental remediation (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2024
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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