Cargando…

Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption

[Image: see text] In an attempt to examine novel adsorbents in accessing an ideal adsorption system, this study aimed to help understand the main and secondary characteristics of a Moroccan natural clay. X-ray fluorescence, infrared, and scanning electron microscopy with energy-dispersive X-ray spec...

Descripción completa

Detalles Bibliográficos
Autores principales: El Kerdoudi, Zineb, Bensalah, Jaouad, Ferraa, Nouhaila, El Mekkaoui, Abdelali, Berisha, Avni, Safi, Zaki, Ouaddari, Hanae, Khallouki, Farid, Dauelbait, Musaab, Nafidi, Hiba-Allah, Z. Gaafar, Abdel-Rhman, Bourhia, Mohammed, Habsaoui, Amar, Mejdoub, Nouredine EL
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2023
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10620898/
https://www.ncbi.nlm.nih.gov/pubmed/37929134
http://dx.doi.org/10.1021/acsomega.3c06019
_version_ 1785130302568398848
author El Kerdoudi, Zineb
Bensalah, Jaouad
Ferraa, Nouhaila
El Mekkaoui, Abdelali
Berisha, Avni
Safi, Zaki
Ouaddari, Hanae
Khallouki, Farid
Dauelbait, Musaab
Nafidi, Hiba-Allah
Z. Gaafar, Abdel-Rhman
Bourhia, Mohammed
Habsaoui, Amar
Mejdoub, Nouredine EL
author_facet El Kerdoudi, Zineb
Bensalah, Jaouad
Ferraa, Nouhaila
El Mekkaoui, Abdelali
Berisha, Avni
Safi, Zaki
Ouaddari, Hanae
Khallouki, Farid
Dauelbait, Musaab
Nafidi, Hiba-Allah
Z. Gaafar, Abdel-Rhman
Bourhia, Mohammed
Habsaoui, Amar
Mejdoub, Nouredine EL
author_sort El Kerdoudi, Zineb
collection PubMed
description [Image: see text] In an attempt to examine novel adsorbents in accessing an ideal adsorption system, this study aimed to help understand the main and secondary characteristics of a Moroccan natural clay. X-ray fluorescence, infrared, and scanning electron microscopy with energy-dispersive X-ray spectroscopy analysis (SEM-EDX) were used for the identification. The findings demonstrate that this Clay is composed of a mixture of quartz, calcite, magnetite, and Rutile in very high proportions. SEM revealed the presence of clay grains in the presence of fine particles and irregularly contoured sticks. The results of semiquantitative detection by EDX also reveal the presence of certain mineral species (Si, Al, Mg, Fe, K, Cl, S, Ca, and Na). The exploited kinetic technique was achieved using two different kinetic models: first- and second-order rate laws. Commensurate to the obtained results, the 2-(sec) order model better described the adsorption of dye MB onto the natural clay. The results confirmed that the adsorption process followed the Langmuir model with the high coefficient correlation obtained which are very close to 1. In the sequel, DFT results revealed that the HOMO and LUMO surfaces of the methylene blue dye are mostly distributed on all dye parts, reflecting possible strong interactions with the clay. The quantum descriptors investigated in this study identify the most nucleophilic and electrophilic centers that can be used to suggest a suitable mechanism for the adsorption of the dye by the clay. The values of enthalpy ΔH(0) and entropy ΔS(0) of activation were −15.88 kJ mol(–1) and −0.021 J mol(–1) K(–1), respectively, show that the nature of the adsorption process of MB on clay is exothermic and the order of distribution of the dye molecules on the adsorbent increases with respect to that of the solution so the negative values of ΔG(0) (from −9. 62 to −8.99 kJ mol(–1)) indicate that the adsorption process is spontaneous.
format Online
Article
Text
id pubmed-10620898
institution National Center for Biotechnology Information
language English
publishDate 2023
publisher American Chemical Society
record_format MEDLINE/PubMed
spelling pubmed-106208982023-11-03 Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption El Kerdoudi, Zineb Bensalah, Jaouad Ferraa, Nouhaila El Mekkaoui, Abdelali Berisha, Avni Safi, Zaki Ouaddari, Hanae Khallouki, Farid Dauelbait, Musaab Nafidi, Hiba-Allah Z. Gaafar, Abdel-Rhman Bourhia, Mohammed Habsaoui, Amar Mejdoub, Nouredine EL ACS Omega [Image: see text] In an attempt to examine novel adsorbents in accessing an ideal adsorption system, this study aimed to help understand the main and secondary characteristics of a Moroccan natural clay. X-ray fluorescence, infrared, and scanning electron microscopy with energy-dispersive X-ray spectroscopy analysis (SEM-EDX) were used for the identification. The findings demonstrate that this Clay is composed of a mixture of quartz, calcite, magnetite, and Rutile in very high proportions. SEM revealed the presence of clay grains in the presence of fine particles and irregularly contoured sticks. The results of semiquantitative detection by EDX also reveal the presence of certain mineral species (Si, Al, Mg, Fe, K, Cl, S, Ca, and Na). The exploited kinetic technique was achieved using two different kinetic models: first- and second-order rate laws. Commensurate to the obtained results, the 2-(sec) order model better described the adsorption of dye MB onto the natural clay. The results confirmed that the adsorption process followed the Langmuir model with the high coefficient correlation obtained which are very close to 1. In the sequel, DFT results revealed that the HOMO and LUMO surfaces of the methylene blue dye are mostly distributed on all dye parts, reflecting possible strong interactions with the clay. The quantum descriptors investigated in this study identify the most nucleophilic and electrophilic centers that can be used to suggest a suitable mechanism for the adsorption of the dye by the clay. The values of enthalpy ΔH(0) and entropy ΔS(0) of activation were −15.88 kJ mol(–1) and −0.021 J mol(–1) K(–1), respectively, show that the nature of the adsorption process of MB on clay is exothermic and the order of distribution of the dye molecules on the adsorbent increases with respect to that of the solution so the negative values of ΔG(0) (from −9. 62 to −8.99 kJ mol(–1)) indicate that the adsorption process is spontaneous. American Chemical Society 2023-10-16 /pmc/articles/PMC10620898/ /pubmed/37929134 http://dx.doi.org/10.1021/acsomega.3c06019 Text en © 2023 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by-nc-nd/4.0/Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle El Kerdoudi, Zineb
Bensalah, Jaouad
Ferraa, Nouhaila
El Mekkaoui, Abdelali
Berisha, Avni
Safi, Zaki
Ouaddari, Hanae
Khallouki, Farid
Dauelbait, Musaab
Nafidi, Hiba-Allah
Z. Gaafar, Abdel-Rhman
Bourhia, Mohammed
Habsaoui, Amar
Mejdoub, Nouredine EL
Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title_full Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title_fullStr Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title_full_unstemmed Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title_short Physicochemical Characterization of Clay and Study of Cationic Methylene Blue Dye Adsorption
title_sort physicochemical characterization of clay and study of cationic methylene blue dye adsorption
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10620898/
https://www.ncbi.nlm.nih.gov/pubmed/37929134
http://dx.doi.org/10.1021/acsomega.3c06019
work_keys_str_mv AT elkerdoudizineb physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT bensalahjaouad physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT ferraanouhaila physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT elmekkaouiabdelali physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT berishaavni physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT safizaki physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT ouaddarihanae physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT khalloukifarid physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT dauelbaitmusaab physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT nafidihibaallah physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT zgaafarabdelrhman physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT bourhiamohammed physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT habsaouiamar physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption
AT mejdoubnouredineel physicochemicalcharacterizationofclayandstudyofcationicmethylenebluedyeadsorption