Cited by 32Adsorption and biosorption for pollutant removalMesoporous Materials and CatalysisAdsorption, diffusion, and thermodynamic properties of materials

Adsorption Performance of Mesoporous Silicas towards a Cationic Dye. Influence of Mesostructure on Adsorption Capacity

Meléndez‐Ortiz, Hector Iván, Puente‐Urbina, Bertha, Mercado‐Silva, Jesus Alfonso, García‐Uriostegui, Lorena·2019·International Journal of Applied Ceramic Technology

Abstract

Abstract The dye adsorption performance of four mesoporous silicas with different structure and textural properties, MCM ‐41, MCM ‐48, SBA ‐15 and mesocellular silica foam ( MCF ), was studied and compared by using toluidine blue O ( TBO ) as dye model in aqueous solution. These materials were characterized by X‐ray diffraction ( XRD ), small‐angle X‐ray scattering, nitrogen adsorption‐desorption analyses, and transmission electron microscopy ( TEM ). The effect of some parameters such as adsorbent dosage, contact time, temperature, and pH on the TBO removal in aqueous solution was studied. Results showed that adsorption capacity raised when adsorbent dosage, contact time and pH solution were increased while an increase in temperature decreased the adsorption of TBO . Langmuir, Freundlich and Temkin isotherm models were employed to elucidate the adsorption mechanism while the adsorption rate data were analyzed according to the pseudo‐first and second‐order kinetic models. Results showed that adsorption of TBO onto MCM ‐48, SBA ‐15, and MCF fitted well the Freundlich isotherm model while the kinetic studies showed that adsorption process could be better described by the pseudo‐second‐order model for all mesoporous silicas. Finally, some solvents were evaluated to carried out dye desorption from the TBO ‐loaded mesoporous silicas founding that acetic acid was the most efficient.

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Crossref · 10.1111/ijac.13179

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  • Mesocellular foam silica molecular sieves are expected to be a suitable adsorption material because they have a large-diameter spherical chamber and a uniform window.

    “In comparison to mesoporous materials, mesocellular foam silica molecular sieves have a large-diameter spherical chamber and a uniform window, so they are expected to be a suitable adsorption material [21].”

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Authors
Meléndez‐Ortiz, H. I., Puente‐Urbina, B., Mercado‐Silva, J. A., & García‐Uriostegui, L.
Affiliations
  • CONACyT‐Centro de Investigación en Química Aplicada Saltillo Coahuila México
  • Centro de Investigación en Química Aplicada Saltillo Coahuila México
  • Universidad de Guadalajara (MX)
Venue
International Journal of Applied Ceramic Technology
Publisher
Wiley
Published
2019-01-29
Volume
16
Issue
4
Pages
1533-1543
ISSN
  • 1546-542X (ISSN-L)
  • 1744-7402
OpenAlex
W2908807350
Cited by
32
References
46
Citations by year
2026: 4 · 2025: 5 · 2024: 3 · 2023: 4 · 2022: 6 · 2021: 4 · 2020: 6
FWCI
1.45
Type
journal article
Language
en
Open access
closed
Locations
International Journal of Applied Ceramic Technology (publishedVersion)
Funders
Consejo Nacional de Ciencia y Tecnología
Topics
  • Physical Sciences › Environmental Science › Water Science and Technology › Adsorption and biosorption for pollutant removal
  • Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
  • Physical Sciences › Chemistry › Spectroscopy › Adsorption, diffusion, and thermodynamic properties of materials
Keywords
dye adsorption, mesoporous silica, cationic dyes, toluidine blue, MCM-41, MCM-48, SBA-15, mesocellular silica foam, mesostructure, adsorption isotherms, adsorption kinetics, dye desorption, acetic acid, wastewater treatment

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