Adsorption studies of carbon dioxide and anionic dye on green adsorbent

Al-Wasidi, Asma S.; AlZahrani, Ibtisam I. S.; Thawibaraka, Hotoun I.; Naglah, Ahmed M.; El‐Desouky, Mohamed G.; El‐Bindary, Mohamed A.

doi:10.1016/j.molstruc.2021.131736

Cited by 75 publications

(30 citation statements)

References 69 publications

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“…were no more peaks that indicated the high purity of the final Fe3O4@ZIF-8 particles, with the exclusion of three peaks at 2θ = 33.47, 35.77, and 43.6° conforming to the (220), (311), and (400) magnetite crystal surfaces (JCPDS No. 19-0629) [26]. The Fe3O4@ZIF-8 crystal system for investigation displayed a crystal structure that is monoclinic through planetary group P21, the lattice constraints, were determined through fool proof and check cell software; a = 18.2790 Å, 2.7490 Å, c = 17.2500 Å, α = 90.00°, β = 103.19 and γ = 90.0°.…”

Section: Resultsmentioning

confidence: 99%

Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction

Al‐Hazmi¹,

Adam²,

El‐Desouky³

et al. 2022

Bull. Chem. Soc. Eth.

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ABSTRACT. The utilization of a metal organic framework (ZIF-8) modified by Fe3O4 nanoparticles was used to accomplish adsorption of Rhodamine B (RB) from aqueous solutions. SEM, XRD, IR, and BET analyses were all used to characterize the composite (Fe3O4@ZIF-8). The surface area of this adsorbent was 478.4 m2/g. X-Ray diffraction spectroscopy was used to detect surface modification utilizing electron microscopy (SEM) scanning with 48 nm in diameter average particle size according to a statistical physics method. Fe3O4@ZIF-8 appears to have dispersive interactions and pore characteristics, according to quantum chemistry simulations. On the adsorption of RB, the influences of contact time, adsorbent quantity, dye concentration, and temperature were studied. The Langmuir and Freundlich adsorption isotherm models were used to study the adsorption isotherms. Anticipated overall adsorption potential was 647.5 mg/g, with a zero-charge point (pHPZC) of 4.3. The adsorption isotherm was fitted using Langmuir whereas pseudo second order was used to match the kinetics. Energy of adsorption (Ea) is 28.7 kJ/mol, indicating a chemisorption phase. The adsorption process is endothermic and unpredictable, according to thermodynamic experiments. It was also looked into using ethanol as a solvent in the desorption of deposited cationic dye. KEY WORDS: Fe3O4@ZIF-8, Rhodamine B, Adsorption models, Thermodynamics Bull. Chem. Soc. Ethiop. 2023, 37(1), 211-229. DOI: https://dx.doi.org/10.4314/bcse.v37i1.17

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Section: Resultsmentioning

confidence: 99%

Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction

Al‐Hazmi¹,

Adam²,

El‐Desouky³

et al. 2022

Bull. Chem. Soc. Eth.

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“…Carbon allotropic forms constitute further promising surfaces for dendritic polymer grafting [134]. In a first combination, hyperbranched PAMAM dendrons emanate from graphite surface activated by KMnO 4 oxidation, (Figure 13b).…”

Section: Early Evolution Efforts By Following the P-nitrophenol Standardmentioning

confidence: 99%

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

et al. 2022

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Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched, and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations in their interior renders them ideal reaction media. In this framework, they are applied in many environmentally benign implementations. One of the most important among them is water purification through pollutant decomposition. Simple and composite catalysts and photo-catalysts containing dendritic polymers and applied in water remediation will be discussed jointly with some unconventional solutions and prospects.

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“…These results showed that the adsorption performance of the magnetic Co 0.4 Cu 0.2 Zn 0.4 Fe 2 O 4 nanoparticles was consistent with the pseudosecond-order model. The experimental data were analyzed separately using the Freundlich, Langmuir, and Temkin models to study the effect of different initial MB concentration on the adsorption of the magnetic Co 0.4 Cu 0.2 Zn 0.4 Fe 2 O 4 nanoparticles [25].…”

Section: Adsorption Kinetics Of Mb Ontomentioning

confidence: 99%

Preparation of magnetic cobalt-cuprum-zinc ferrite nanoparticles and their adsorption mechanism of methyl blue

Ouyang¹,

Pan²,

Liu³

et al. 2022

Mater. Res. Express

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Magnetic cobalt-cuprum-zinc ferrites were prepared from anhydrous ethanol using the combustion method, and their structure and properties were characterized using the XRD, SEM, EDS, and VSM techniques, and its formation mechanism was discussed. The magnetic Co0.4Cu0.2Zn0.4Fe2O4 nanoparticles calcined at 400 oC with 25 mL anhydrous ethanol were used for the removal of methyl blue (MB). The results showed that the pseudo-second-order kinetic model best agreed with the adsorption method. In addition, analysis of the adsorption isotherms using the Freundlich, Langmuir, and Temkin models showed that theTemkin model was most consistent with experimental results, which revealed that the adsorption of MB onto the Co0.4Cu0.2Zn0.4Fe2O4 nanoparticles was a multi-molecular layer chemisorption. Further, the influence of pH on the adsorption capacity was evaluated and was highest at pH 11. The cyclability and removal rate of the nanoparticles were explored. The removal rate was approximately 80% after 7 cycles, revealing that the magnetic CoxCuyZn(1-x-y)Fe2O4 nanoparticles are important for wastewater treatment.

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Adsorption studies of carbon dioxide and anionic dye on green adsorbent

Cited by 75 publications

References 69 publications

Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction

Efficient adsorption of Rhodamine B using a composite of Fe3O4@zif-8: Synthesis, characterization, modeling analysis, statistical physics and mechanism of interaction

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Preparation of magnetic cobalt-cuprum-zinc ferrite nanoparticles and their adsorption mechanism of methyl blue

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