Removal of methylene blue (MB) by bimetallic- metal organic framework

Amery, Naser Al; Abid, Hussein Rasool; Wang, Shaobin; Liu, Shaomin

doi:10.31258/jamt.2.1.36-49

Cited by 17 publications

(5 citation statements)

References 75 publications

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“…The findings of this study are in line with prior research [19,24]. On the basis of previous results, the best operating conditions for the best adsorption process using MOF-199 adsorbent can be predicted where the dose of adsorbent = 2 g/l, contact time = 90 minutes, pH = 7.5 and concentration of methylene blue =20 ppm.…”

Section: The Impact Of Initial Mb Concentrationsupporting

confidence: 89%

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Synthesis and Characterization of a Contemporary Type of Metal-Organic Framework and its Application for Purification Wastewater from Toxic Methylene Blue Dye

Attar,

Alrubaye

2024

J. Ecol. Eng.

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This paper describes the synthesis of a promising material and evaluates the suitability of a metal-organic framework (MOF-199) for purifying toxic methylene blue (MB) dye wastewater via an adsorption process. (MOF-199) is considered much better than traditional adsorbents. The research focused on determining the adsorption characteristics and dye removal effectiveness with MOF-199, where several factors were studied, including dye concentration, contact time, amount of adsorbent, and pH. The highest observed dye removal efficiency was 97.21% when the pH was 7.5, and the reaction duration was 90 minutes. This was achieved by adding 0.2 g of MOF-199 to a dye solution containing 20 mg/L methylene blue. The adsorption process was evaluated by Langmuir, and the Freundlich isotherm models. As the strong correlation factor (R 2 = 0.9989) indicates a pseudo-second-order kinetic model describes the adsorption methylene blue by MOF-199 the best. This indicates that the main mechanism of dye removal is chemisorption. Finally, the MOF-199 material can have remarkable reusability as an adsorption material for MB and subsequent efficiency of MOF-199 exhibited a reduction of 14.43% after undergoing four cycles, compared to its initial state. Yet, it remained at a commendably high level.

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Section: The Impact Of Initial Mb Concentrationsupporting

confidence: 89%

“…The kinetics of methylene blue removal on MOF-199 were determined by the use of pseudofirst-order and pseudo-second-order equations. The procedure of selecting the best appropriate model entails evaluating the correlation coefficient, represented as R², within the context of linear regression analysis [23,24].…”

Section: Adsorption Kineticsmentioning

confidence: 99%

Synthesis and Characterization of a Contemporary Type of Metal-Organic Framework and its Application for Purification Wastewater from Toxic Methylene Blue Dye

Attar,

Alrubaye

2024

J. Ecol. Eng.

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“…[49] Effective way of MB removal from water is by employing BMOF. Calcium doped UiO-66 with varying ratios of the dopant has been studied [50] for an enhanced removal of MB up to 15 mg/g. The advantage of having unsaturated metal sites aids for effective removal of MB from water.…”

Section: Bmofs For Treatment Of Organic Pollutants In Watermentioning

confidence: 99%

Bimetallic Metal‐Organic Frameworks (BMOF) and BMOF‐ Incorporated Membranes for Energy and Environmental Applications

Chithra

Varsha

et al. 2023

ChemPlusChem

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Bimetallic metal organic frameworks (BMOFs) are a class of crystalline solids and their structure comprises two metal ions in the lattice. BMOFs show a synergistic effect of two metal centres and enhanced properties compared to MOFs. By controlling the composition and relative distribution of two metal ions in the lattice the structure, morphology, and topology of BMOFs could be regulated resulting in an improvement in the tunability of pore structure, activity, and selectivity. Thus, developing BMOFs and BMOF incorporated membranes for applications such as adsorption, separation, catalysis, and sensing is a promising strategy to mitigate environmental pollution and address the looming energy crisis. Herein we present an overview of recent advancements in the area of BMOFs and a comprehensive review of BMOF incorporated membranes reported to date. The scope, challenges as well as future perspectives for BMOFs and BMOF incorporated membranes are presented.[a] K.

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“…Different biological, chemical, and physical processes have been applied to remove organic pollutants from an aqueous solution, such as adsorption, biodegradation, coagulationflocculation, ion exchange, photocatalytic, membrane electrodialysis and filtration, and solvent extraction. These strategies are incapable of completely removing phenolic compounds, require more extended time, and are not cost-effective [3,[6][7][8][9][10][11]. Advanced oxidation processes (AOPs) have been proven to be a promising alternative to water treatment due to their compelling oxidation potential for the mineralization of organic pollutants [12].…”

Section: Introductionmentioning

confidence: 99%

Mn3O4 Catalysts for Advanced Oxidation of Phenolic Contaminants in Aqueous Solutions

Muhammad

Nugraha

Saputra

et al. 2022

Water

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Water-soluble organic pollutants, such as phenolic compounds, have been exposed to environments globally. They have a significant impact on groundwater and surface water quality. In this work, different Mn3O4 catalysts were prepared for metal oxide activation of peroxymonosulfate (PMS) to remove the phenolic compound from the water environment. The as-prepared catalysts were characterized using thermogravimetric-differential thermal analysis (TG-DTA), powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and Brunauer-Emmett-Teller (BET) surface area analysis. Furthermore, the effect of temperature and reusability of the as-prepared Mn3O4 catalysts is also investigated. The Mn3O4 nanoparticles (NPs) catalyst reveals an excellent performance for activating PMS to remove phenol compounds. Mn3O4 NPs exhibits 96.057% efficiency in removing 25 ppm within 60 min. The kinetic analysis shows that Mn3O4 NPs fitted into pseudo-first order kinetic model and exhibited relatively low energy activation of 42.6 kJ/mol. The reusability test of Mn3O4 NPs displays exceptional stability with 84.29% efficiency after three-sequential cycles. The as-prepared Mn3O4 NPs is proven suitable for phenolic remediation in aqueous solutions.

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Removal of methylene blue (MB) by bimetallic- metal organic framework

Cited by 17 publications

References 75 publications

Synthesis and Characterization of a Contemporary Type of Metal-Organic Framework and its Application for Purification Wastewater from Toxic Methylene Blue Dye

Synthesis and Characterization of a Contemporary Type of Metal-Organic Framework and its Application for Purification Wastewater from Toxic Methylene Blue Dye

Bimetallic Metal‐Organic Frameworks (BMOF) and BMOF‐ Incorporated Membranes for Energy and Environmental Applications

Mn3O4 Catalysts for Advanced Oxidation of Phenolic Contaminants in Aqueous Solutions

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