Utilizing modified weathered basalt as a novel approach in the preparation of Fe3O4 nanoparticles: Experimental and theoretical studies for crystal violet adsorption

Sharib, A. S. A. A. Abu; Bonilla‐Petriciolet, Adrián; Selim, Ali Q.; Mohamed, Essam A.; Seliem, Moaaz K.

doi:10.1016/j.jece.2021.106220

Cited by 32 publications

(30 citation statements)

References 52 publications

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“…The appropriateness of these advanced models to fit MB and MO adsorption data was compared, and the best one was identified according to the determined coefficient R 2 values [13]. These advanced models are described as follows [9,13,31]:…”

Section: Mb and Mo Adsorption Modelingmentioning

confidence: 99%

“…This parameter was utilized to recognize MB and MO molecules' geometry (i.e., horizontal or vertical) on the Rt/BC surface and their aggregation in solutions (i.e., before adsorption). Moreover, the dyes removal mechanism can be clearly identified by determining the value of the n parameter [12,30,31,35]. Thus, this steric parameter is employed to correct the assumption of the classical Langmuir equation, wherein n is equal to unity [12,30].…”

Section: Steric Parametersmentioning

confidence: 99%

“…where the parameter N 2 designates the number of removed dye layers with specified energy of adsorption. Numerous situations were anticipated depending on the multilayer adsorption model as given in Figure 1 [13,31,32]:…”

mentioning

confidence: 99%

“…Conversely, the additional energy was linked to the dye-dye interaction. Therefore, the whole number of the removed dye layers is calculated by Nt = 1 + N2 [31]. The multilayer model suggests that the dye-Rt/BC interaction was related to dissimilar adsorption energies [13].…”

mentioning

confidence: 99%

“…Conversely, the additional energy was linked to the dye-dye interaction. Therefore, the whole number of the removed dye layers is calculated by N t = 1 + N 2 [31].…”

mentioning

confidence: 99%

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Outstanding Performance of a New Exfoliated Clay Impregnated with Rutile TiO2 Nanoparticles Composite for Dyes Adsorption: Experimental and Theoretical Studies

et al. 2021

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Pure rutile TiO2 nanoparticles (Rt) were combined with exfoliated black clay (BC) to prepare a new composite for water decontamination, in particular, for the uptake of methylene blue (MB) and methyl orange (MO) dyes. The as-prepared Rt/BC was characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and Field emission scanning electron microscopy (FESEM) techniques, and the dyes’ adsorption isotherms at three temperatures (i.e., 25, 40, and 50 °C) were studied. The results indicated that Rt/BC displayed a high removal performance for MO (96.7%) and MB (91.4%) at pH 3.0 and 8.0, respectively. Adsorption data of MB and MO were adjusted by a double layer model at all temperatures. The theoretical parameters of this statistical physics model were interpreted to understand the MO and MB adsorption mechanisms at the molecular level. The removed molecules per active site (n) of Rt/BC ranged from 1.12 to 1.29 for MB and 1.47 to 1.85 for MO, thus representing parallel orientation and multi-interactions mechanisms (i.e., van der Waals forces, hydrogen bonding, and electrostatic interactions were involved). The Rt/BC composite had a density of surface adsorption sites of 100 mg/g. The aggregation of MO molecules was high and increased their adsorption capacities (Qsat = 294–370 mg/g) compared to that of MB (Qsat = 214–249 mg/g). Adsorption energies were 9.70–20.15 kJ/mol, and these values indicated that MO and MB adsorption processes were endothermic and occurred via physical interactions. Overall, the low cost, high regeneration performance, and stability of Rt/BC support its application as a promising adsorbent for organic pollutants from wastewaters.

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Section: Mb and Mo Adsorption Modelingmentioning

confidence: 99%

Section: Steric Parametersmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

“…Conversely, the additional energy was linked to the dye-dye interaction. Therefore, the whole number of the removed dye layers is calculated by N t = 1 + N 2 [31].…”

mentioning

confidence: 99%

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Outstanding Performance of a New Exfoliated Clay Impregnated with Rutile TiO2 Nanoparticles Composite for Dyes Adsorption: Experimental and Theoretical Studies

et al. 2021

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Magnetic Iron Oxide-Based Nanocomposites: Synthesis, Characterization, and Its Application Towards Organic Dye Removal

Sahoo,

Shekhar,

Rath

et al. 2024

Nanostructure Science and Technology

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Fabrication of electrospun polyamide–weathered basalt nano-composite as a non-conventional membrane for basic and acid dye removal

et al. 2022

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In this study, an adsorptive electrospun polyamide membrane (ESPA) and electrospun polyamide–weathered basalt composite membrane (ESPA-WB) were prepared by an electrospinning process at room temperature. Hence, the WB structure was built as a polymeric membrane separation film in combination with the ESPA matrix as a composite nano-filtration membrane. Then, the ESPA and ESPA-WB membranes were characterized using BET surface area analysis, Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscopy (SEM). To avoid cracks forming during the sintering process, the WB should be added in certain percentages. The microstructures of the prepared membranes were investigated to evaluate their efficiency for basic and acidic dyesʼ removal and their permeation flux. Compared with the ESPA, the ESPA-WB membrane combines the characteristics of WB and ESPA, which greatly enhances the performance of both methylene blue (MB) and methyl orange (MO) dyes removal from synthetic wastewater. The outcomes of this study indicated that the dye uptake in the case of ESPA-WB is higher than that of ESPA, and it decreases with an increase in dye concentrations. The obtained membrane ESPA-WB showed both an excellent anti-dye fouling and a good rejection property for both dyes (i.e. 90% rejection for MB and 74% for MO) with no sign of contamination by the applied dyes. It was found that the structure of the ESPA-WB membrane contains a large number of several adsorption sites which leads to an increase in the removal rate of dyes. Hence, this study demonstrated a non-conventional strategy to prepare an effective adsorptive nano-composite membrane that can be applied as a highly recyclable one for the removal of organic dyes. Graphic abstract

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Utilizing modified weathered basalt as a novel approach in the preparation of Fe3O4 nanoparticles: Experimental and theoretical studies for crystal violet adsorption

Cited by 32 publications

References 52 publications

Outstanding Performance of a New Exfoliated Clay Impregnated with Rutile TiO2 Nanoparticles Composite for Dyes Adsorption: Experimental and Theoretical Studies

Outstanding Performance of a New Exfoliated Clay Impregnated with Rutile TiO2 Nanoparticles Composite for Dyes Adsorption: Experimental and Theoretical Studies

Magnetic Iron Oxide-Based Nanocomposites: Synthesis, Characterization, and Its Application Towards Organic Dye Removal

Fabrication of electrospun polyamide–weathered basalt nano-composite as a non-conventional membrane for basic and acid dye removal

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