Separation of the Biofuel Methyl Ethyl Ketone from Aqueous Solutions Using Avocado-Based Activated Carbons: Synthesis Conditions and Multilayer Adsorption Properties

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-09-15T00:29:55Z
Fecha de publicación2025-01-01
ResumenThis study reports the separation of methyl ethyl ketone (MEK), a relevant compound in the biorefinery context, from aqueous solutions using activated carbons derived from avocado seed biomass. Two synthesis routes were explored via chemical and thermal activation with H2SO4 and KOH. A Taguchi experimental design was applied to tailor synthesis conditions, with MEK adsorption capacity as the target property. Adsorption kinetics and isotherms were evaluated to determine the thermodynamic behavior of MEK separation using the best-performing activated carbons. The carbon activated with H2SO4 achieved the highest adsorption capacity (142 mg g−1) at 20 °C and pH 4, surpassing KOH-based materials. This enhanced performance correlated to increased surface area and acidic oxygenated functionalities. However, higher pH and temperature reduced the adsorption efficiency for all adsorbents. Comprehensive characterization was performed using XRD, XRF, FTIR, SEM, N2 adsorption–desorption isotherms, pH at point of zero charge, and surface acidity/basicity analysis via Boehm titration. Thermodynamic data and surface characterization indicated that MEK adsorption occurs via a double-layer mechanism dominated by electrostatic interactions and hydrogen bonding. The findings highlight an optimized approach for tailoring avocado-based activated carbons to efficiently recover MEK from aqueous media, supporting its potential application in downstream purification of fermentation broths for biofuel production and energy transition processes.es_ES
Doihttps://doi.org/10.3390/molecules30163426es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/1838
Idiomaeses_ES
EditorialMDPI AGes_ES
RelaciónMoleculeses_ES
URL relacionadohttps://doi.org/10.3390/molecules30163426es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteMolecules
TítuloSeparation of the Biofuel Methyl Ethyl Ketone from Aqueous Solutions Using Avocado-Based Activated Carbons: Synthesis Conditions and Multilayer Adsorption Propertieses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorReynel-Avila, Hilda Elizabeth
AutorLedea-Figueredo, Eduardo
AutorDíaz-Muñoz, Lizbeth Liliana
AutorBonilla-Petriciolet, Adrián
AutorAguayo-Villarreal, Ismael Alejandro
AutorElvir-Padilla, Laura Gabriela
AutorDurán-Valle, Carlos Javier
AutorReynel-Avila, Hilda Elizabethes_ES
AutorLedea-Figueredo, Eduardoes_ES
AutorDíaz-Muñoz, Lizbeth Lilianaes_ES
AutorBonilla-Petriciolet, Adriánes_ES
AutorAguayo-Villarreal, Ismael Alejandroes_ES
AutorElvir-Padilla, Laura Gabrielaes_ES
AutorDurán-Valle, Carlos Javieres_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número16es_ES
Rango de páginas3426es_ES
URL relacionadahttps://doi.org/10.3390/molecules30163426
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen30es_ES

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