The adsorption mechanism of the anionic and cationic dyes of the cationic resin A®IRC-50, kinetic study and theoretical investigation using DFT

Bensalah, Jaouad; Benhiba, F.; Habsaoui, Amar; Ouass, Abdelkarim; Zarrouk, A.; Lebkiri, Ahmed; Khattabi, Omar El; Rifi, El Housseine

doi:10.1016/j.jics.2022.100512

Cited by 32 publications

(12 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some clays, whose inter-sheet bonds are very weak, have the property of xing water molecules between two neighboring sheets, as is generally the case with smectites. We notice that the water penetrates inside the particles and organizes itself in monomolecular layers, which cause the swelling [23].…”

Section: Clay Swelling Mechanismmentioning

confidence: 94%

“…The refusals dried in an oven until constant mass. Then, we proceed to the weighing of the refusal of each sieve [23].…”

Section: Particle Size Analysis By Sievingmentioning

confidence: 99%

“…This test applies to the description of the material with a view to their classi cation, to the determination of the granulometric classes and to the veri cation of the granulometric conditions imposed. It helps to assess the draining qualities and the sensitivity to water of the materials as well as their ability to compact [23].…”

Section: The Pourcentage Of Cumulative Refusals Pmentioning

confidence: 99%

See 2 more Smart Citations

Study of the mechanical behavior of swelling and highly compacted clays in road construction

Ouslimane,

Bensalah,

Barebita

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

Clays considered “problematic” swelling clay soils in the construction of road infrastructures. They generally associated with high compression, high plasticity, and evolutionary behavior. The objective of this article is to study the mechanical behavior of swelling clays and particularly a clay from the Kenitra region. To do this, samples taken from the main clay sites in the region. They then subjected to several series of tests in the laboratory, namely identification tests and mechanical tests (shear test and odometer compressibility test). The results obtained show that the clays studied exhibit very different behaviors. Indeed, the clays of Sidi Slimane, Sidi Kacem and Ouazzane have very interesting mechanical characteristics and can offered in their natural state as road materials, at least for pavements. Ouazzane clay, on the other hand, has very swelling mechanical characteristics (Cg = 0.06), and clay from Sidi Slimane (Cg = 0.04) and Sidi Kacem (Cg = 0.05) and cannot be used in its raw state. Natural without any treatment.

show abstract

Section: Clay Swelling Mechanismmentioning

confidence: 94%

“…The refusals dried in an oven until constant mass. Then, we proceed to the weighing of the refusal of each sieve [23].…”

Section: Particle Size Analysis By Sievingmentioning

confidence: 99%

Section: The Pourcentage Of Cumulative Refusals Pmentioning

confidence: 99%

See 1 more Smart Citation

Study of the mechanical behavior of swelling and highly compacted clays in road construction

Ouslimane,

Bensalah,

Barebita

et al. 2023

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…28 A band 794.14 cm −1 corresponds to quartz, there is the bands characteristic of constitutive water that show up about 3000.00 cm −1, and two vibrational bands around 3624.61 and 3446.47 cm −1 corresponding to the Al− OH-Al elongation. 29 3.1.3. X-ray Diffraction.…”

Section: Characterization 311 Scanning Electron Microscopy/energymentioning

confidence: 99%

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

El Kerdoudi,

Bensalah,

Ferraa

et al. 2023

ACS Omega

Self Cite

View full text Add to dashboard Cite

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.

show abstract

“…In the evolution of industrial-scale adsorption processes, solid-liquid and solid-gas interfaces are equally the most common ones. Adsorption is defined as the penetration of the adsorbate molecules into the mass solid stage, whereas adsorbate is defined as the material in the adsorbed state [36].…”

Section: Adsorption Of Dyesmentioning

confidence: 99%

Methylene blue and Congo red removal by activated carbons: A current literature

Hao

Othman

Zaini

2022

Acta Universitatis Sapientiae, Agriculture and Environment

View full text Add to dashboard Cite

Dye is a major source of water pollution. This mini-review highlights the origin of dye, its removal strategies, and the recent literature of methylene blue and Congo red adsorption by activated carbons. Adsorption is a unique process that relies upon the physicochemical properties of the activated carbon and the inherent characteristics of dye. Also, factors affecting adsorption, such as contact time, temperature, and concentration, were discussed to gain insight into dye removal mechanisms.

show abstract

The adsorption mechanism of the anionic and cationic dyes of the cationic resin A®IRC-50, kinetic study and theoretical investigation using DFT

Cited by 32 publications

References 43 publications

Study of the mechanical behavior of swelling and highly compacted clays in road construction

Study of the mechanical behavior of swelling and highly compacted clays in road construction

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

Methylene blue and Congo red removal by activated carbons: A current literature

Contact Info

Product

Resources

About