Adsorption mechanism of Methylene Blue from polluted water by Opuntia ficus indica of Beni Mellal and Sidi Bou Othmane areas: A comparative study

Ifguis, Ousama; Ziat, Younes; Belkhanchi, Hamza; Ammou, Fouzia; Moutcine, Abdelaziz; Laghlimi, Charaf

doi:10.1016/j.chphi.2023.100235

Cited by 3 publications

(4 citation statements)

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“…In Figure 7(b) the FTIR spectra of MB‐adsorbed Sb−V−O catalysts scanned between 1200 cm −1 –1800 cm −1 reveal IR modes linked to Methylene Blue. In essence, it is plausible that the removal of color is primarily attributable to adsorption and not to the degradation of the chromophore group [37,43] . The adsorption behavior was readily discernible by observing the C=C stretching mode of Methylene Blue (MB) at approximately 1605 cm −1 [41] .…”

Section: Resultsmentioning

confidence: 99%

“…In essence, it is plausible that the removal of color is primarily attributable to adsorption and not to the degradation of the chromophore group. [37,43] The adsorption behavior was readily discernible by observing the C=C stretching mode of Methylene Blue (MB) at approximately 1605 cm À 1 . [41] The emergence of this spectral band post-adsorption unmistakably confirmed the successful sequestration of MB.…”

Section: Ftir Spectroscopymentioning

confidence: 99%

“…Adsorbents such as fly ash, [22,23] charcoal, [24] peat, [25] sawdust, [26] lignite, [27] wood, [28] chitosan, [11,29] have attracted greater interest, mainly because of their natural availability and low cost. In addition, graphene‐based materials, [15] polymers, [30] zeolites, [31] and structurally and morphologically engineered semiconducting metal oxides like NiO, [32] Fe 2 O 3 , [33] MnO 2 , [34] ZnO, [35] V 2 O 5 , [17,36,37] Co 3 O 4 , [38] CuO, [39,40] are another category of adsorbents/catalysts which possess better physicochemical stability when compared to classical adsorbents and have found various applications in the removal of cationic/anionic dyes [17,37,39,41–43] . Introduction of foreign cation to V 2 O 5 is always a versatile area of research [44,45,46] and there are plenty of reports on Li, Ni, Bi, Co, Mn, and Mo‐doped vanadium pentoxide systems creating single‐phase as well as mixed‐phase compounds, composites and alloys with enhanced physical and catalytic properties [47–50] .…”

Section: Introductionmentioning

confidence: 99%

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Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

Sabna,

Safna,

C P

et al. 2024

ChemistrySelect

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Herein, mesoporous V2‐xSb2xO5‐δ (Sb−V−O) compounds, encompassing a compositional range of x varying between, 0.05≤x≤0.08, with orthorhombic Pmmn space group symmetry, are synthesized by high‐temperature solid‐state reaction method. Scanning electron microscopy indicated the formation of microscale rods and flakes and EDS spectra affirmed the stoichiometric precision of their composition adhering to the formulated chemical formula. Nitrogen adsorption isotherms exhibited the distinctive type IV pattern, accompanied by an H3 hysteresis loop, signifying the formation of mesoporous micro rods and flakes. Brunauer‐Emmett‐Teller measurements demonstrated an augmented surface area, ranging from 16.67–28.74 m2/g, mirroring the effect of the increase in the concentration of Sb cations. The study demonstrated complete Methylene Blue dye removal within a brief 90 minute period, highlighting its efficacy in water remediation. The adsorption kinetics was aptly described by the pseudo‐second‐order model which exhibited a high degree of fit (R2=0.99). Freundlich adsorption isotherm was used to describe the multilayer adsorption of MB dye on the Sb−V−O surface indicating an exponential increase in adsorption active sites. Enhanced cationic MB dye adsorption on negative Sb−V−O surface is attributed to the electrostatic chemisorption by the interaction of NMe2+ on the negative surface modified Sb−V−O compounds.

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Section: Resultsmentioning

confidence: 99%

Section: Ftir Spectroscopymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

Sabna,

Safna,

C P

et al. 2024

ChemistrySelect

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“…These processes include flocculation, precipitation, ion exchange, membrane filtration, irradiation, and ozonation. However, these procedures are expensive and lead to the generation of large quantities of sludge or the formation of drifts [ 24 , 25 , 26 ].…”

Section: Introductionmentioning

confidence: 99%

A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles

Dehbi,

Dehmani,

Franco

et al. 2024

Molecules

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The production of cobalt oxide nanoparticles and their use in the adsorption of methylene blue (MB) from solution is described in the paper. The X-ray diffraction patterns show that the synthesized cobalt oxide nanoparticles have a crystalline cubic structure. The study of the adsorption of methylene blue onto the cobalt oxide nanoparticles involved determining the contact time and initial concentration of the adsorption of MB on the adsorbent. The kinetics of adsorption were analyzed using two kinetic models (pseudo-first order and pseudo-second order), and the pseudo-second-order model was found to be the most appropriate for describing the behavior of the adsorption. This study indicates that the MLTS (monolayer with the same number of molecules per site) model is the most suitable model for describing methylene blue/cobalt oxide systems, and the parameter values help to further understand the adsorption process with the steric parameters. Indicating that methylene blue is horizontally adsorbed onto the surface of the cobalt oxide, which is bonded to two different receptor sites. Regarding the temperature effect, it was found that the adsorption capacity increased, with the experimental value ranging from 313.7 to 405.3 mg g−1, while the MLTS predicted 313.32 and 408.16 mg g−1. From the thermodynamic functions, high entropy was found around 280 mg L−1 concentration. For all concentrations and temperatures examined, the Gibbs free energy and enthalpy of adsorption were found to be negative and positive, respectively, suggesting that the system is spontaneous and endothermic. According to this study’s findings, methylene blue adsorption onto cobalt oxide nanoparticles happens via the creation of a monolayer, in which the same amount of molecules are adsorbed at two distinct locations. The findings shed light on the methylene blue adsorption process onto cobalt oxide nanoparticles, which have a variety of uses, including the remediation of wastewater.

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Voltammetric investigation of the complexing effect of Capparis spinosa on heavy metals: Application in the treatment of water

Laghlimi,

Moutcine,

Chtaini

et al. 2023

Ionics

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Adsorption mechanism of Methylene Blue from polluted water by Opuntia ficus indica of Beni Mellal and Sidi Bou Othmane areas: A comparative study

Cited by 3 publications

References 25 publications

Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles

Voltammetric investigation of the complexing effect of Capparis spinosa on heavy metals: Application in the treatment of water

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Adsorption mechanism of Methylene Blue from polluted water by Opuntia ficus indica of Beni Mellal and Sidi Bou Othmane areas: A comparative study

Cited by 3 publications

References 25 publications

Surface‐Modified Mesoporous V2‐xSb2xO5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

Surface‐Modified Mesoporous V2‐xSb2xO5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

A Statistical Physics Approach to Understanding the Adsorption of Methylene Blue onto Cobalt Oxide Nanoparticles

Voltammetric investigation of the complexing effect of Capparis spinosa on heavy metals: Application in the treatment of water

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Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue

Surface‐Modified Mesoporous V_2‐xSb_2xO_5‐δ Ceramics for Improving the Electrostatic Chemisorption of Methylene Blue