Kinetic and thermodynamic study of the adsorption of cationic dyes by the cationic artificial resin Amberlite®IRC50

Bensalah, Jaouad; Berradi, Mohamed; Habsaoui, Amar; Allaoui, Mohamed; Essebaai, Hanane; Khattabi, Omar El; Lebkiri, Ahmed; Rifi, El Housseine

doi:10.1016/j.matpr.2021.02.028

Cited by 23 publications

(12 citation statements)

References 32 publications

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“…A band at 1004.99 788.00 and 696.00 cm –1 , was assigned to elongation vibrations of Si–O . Two different bands at 867.29 and 713.25 cm –1 , indicate respectively the presence of Si–O–Al and Ca–CO .…”

Section: Resultsmentioning

confidence: 99%

“…The enthalpy (Δ H °), entropy (Δ S °), and the free energy change of the adsorption reaction were represented following the respective eqs and : ln ( K normalL ) = normalΔ S R − normalΔ H R T normalΔ G = normalΔ H − T normalΔ S …”

Section: Methodsmentioning

confidence: 99%

“…27 A band at 1004.99 788.00 and 696.00 cm −1 , was assigned to elongation vibrations of Si−O. 20 Two different bands at 867.29 and 713.25 cm −1 , indicate respectively the presence of Si−O− Al and Ca−C�O. 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.…”

Section: Characterization 311 Scanning Electron Microscopy/energymentioning

confidence: 99%

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

El Kerdoudi,

Bensalah,

Ferraa

et al. 2023

ACS Omega

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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.

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Section: Resultsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Characterization 311 Scanning Electron Microscopy/energymentioning

confidence: 99%

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

El Kerdoudi,

Bensalah,

Ferraa

et al. 2023

ACS Omega

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“…Water consumption is rising as a result of population growth and rising living standards [1][2][3][4][5]. The accumulation of noxious substances makes it more difficult to maintain the quality of the water supply.…”

Section: Introductionmentioning

confidence: 99%

Carbon-Based Nanoadsorbents for the Removal of Emerging Pollutants

Myneni

Akilamudhan²,

Kandasamy³

et al. 2023

Adsorption Science & Technology

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Emerging contaminants (ECs) are substances that have been detected in water but have not been thoroughly tested or regulated. Pesticides, cosmetics, pharmaceuticals, and other medications are examples of compounds in this category. Even at low quantities, these pollutants can harm human health and the environment; therefore, avoiding them is critical. The consequences of EC pollution on the endocrine, hormonal, and genetic systems are causing significant concern. Even with current best practices and available technology, it is difficult to totally eliminate ECs from municipal and industrial wastewater treatment plants. Adsorption has been the method of choice for EC removal since it is less costly, more effective, and easier to use. To treat ECs, newer generation nanoadsorbents are employed. Adsorption was greatly enhanced by functional changes to the adsorbent surface. Carbon nanostructures are widely used as adsorbents because of their outstanding surface properties, adaptability, large surface area, adjustable structural changes, and high chemical stability. This review reviews and examines recent research on the production and use of carbon-based nanoadsorbents. The emphasis is on carbon nanotubes, graphene, and graphene-derived adsorbents. It is being investigated if these adsorbents can be used to extract hormone-disrupting chemicals and other emerging pollutants. The sources and classification of these pollutants, treatment knowledge gaps, and novel prospects for increasing carbonaceous nanoadsorbent utilization were all explored. The environmental and health problems associated with EC use are also studied.

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“…This situation causes signi cant volume changes producing premature deterioration in the pavement. The ability of a road to resist the effects of water in ltration will therefore largely determined by the quality and thickness of the foundation layer, which varies in particular according to the intensity of tra c [21]. The proposed work falls within this perspective, it consists in studying the mechanical behavior of a natural clay of the Kenitra region for possible use in road construction.…”

Section: Introductionmentioning

confidence: 99%

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

Ouslimane,

Bensalah,

Barebita

et al. 2023

Preprint

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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.

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Kinetic and thermodynamic study of the adsorption of cationic dyes by the cationic artificial resin Amberlite®IRC50

Cited by 23 publications

References 32 publications

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

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

Carbon-Based Nanoadsorbents for the Removal of Emerging Pollutants

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

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