In situ preparation of MOF-199 into the carrageenan-grafted-polyacrylamide@Fe3O4 matrix for enhanced adsorption of levofloxacin and cefixime antibiotics from water

Salehi, Mohammad; Hassanzadeh‐Afruzi, Fereshte; Heidari, Golnaz; Maleki, Ali; Zare, Ehsan Nazarzadeh

doi:10.1016/j.envres.2023.116466

Cited by 25 publications

(12 citation statements)

References 75 publications

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“…III) Diffusion and transfer of DZ, AMX, and CV pollutants into the pores and pores of GAC-PEG. All these mechanisms effectively contributed to the absorption performance [ 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

Removal of organic contamination from wastewater using granular activated carbon modified—Polyethylene glycol: Characterization, kinetics and isotherm study

Choopani,

Salehi,

Mashhadimoslem

et al. 2024

PLoS ONE

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To effectively remove Diazinon (DZ), Amoxicillin (AMX), and Crystal Violet (CV) from aquatic environments, a novel granular activated carbon (GAC) modified with Polyethylene glycol 600 (PEG) was created and manufactured. The chemical properties were investigated using a variety of characteristic analyses, including FT-IR, XRD, FESEM, and N2 adsorption/desorption. The effectiveness of GAC-PEG’s adsorption for the removal of DZ, AMX, and CV was assessed under a variety of conditions, including a pH of 4–9 for the solution, 0.003–0.05 g doses of adsorbent, 50–400 ppm starting concentration, and a reaction time of 5–25 min. For DZ, AMX, and CV adsorption, the maximum adsorption capacity (Qmax) was 1163.933, 1163.100, and 1150.300 mg g-1, respectively. The Langmuir isotherm described all of the data from these adsorption experiments, and the pseudo-second-order well explains all-adsorption kinetics. Most contacts between molecules, electrostatic interactions, π–π interactions, hydrogen bonding, and entrapment in the modified CAG network were used to carry out the DZ, AMX, and CV adsorption on the GAC-PEG. The retrievability of the prepared adsorbent was successfully investigated in studies up to two cycles without loss of adsorption efficiency, and it was shown that it can be efficiently separated.

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“…III) Diffusion and transfer of DZ, AMX, and CV pollutants into the pores and pores of GAC-PEG. All these mechanisms effectively contributed to the absorption performance [ 52 , 53 ].…”

Section: Resultsmentioning

confidence: 99%

Removal of organic contamination from wastewater using granular activated carbon modified—Polyethylene glycol: Characterization, kinetics and isotherm study

Choopani,

Salehi,

Mashhadimoslem

et al. 2024

PLoS ONE

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“…The detection and identification of organic and inorganic elements in the manufactured compounds was done by the Energy Dispersive X-Ray (EDX) qualitative analysis method 51 , 52 . Therefore, the constituent elements of the prepared samples can be examined in the EDX spectrum.…”

Section: Resultsmentioning

confidence: 99%

Utilizing magnetic xanthan gum nanocatalyst for the synthesis of acridindion derivatives via functionalized macrocycle Thiacalix[4]arene

Hassanzadeh-Afruzi,

Salehi,

Ranjbar

et al. 2023

Sci Rep

Self Cite

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An effective method for synthesizing acridinedione derivatives using a xanthan gum (XG), Thiacalix[4]arene (TC4A), and iron oxide nanoparticles (IONP) have been employed to construct a stable composition, which is named Thiacalix[4]arene-Xanthan Gum@ Iron Oxide Nanoparticles (TC4A-XG@IONP). The process used to fabricate this nanocatalyst includes the in-situ magnetization of XG, its amine modification by APTES to get NH2-XG@IONP hydrogel, the synthesis of TC4A, its functionalization with epichlorohydrine, and eventually its covalent attachment onto the NH2-XG@IONP hydrogel. The structure of the TC4A-XG@IONP was characterized by different analytical methods including Fourier-transform infrared spectroscopy, X-Ray diffraction analysis (XRD), Energy Dispersive X-Ray, Thermal Gravimetry analysis, Brunauer–Emmett–Teller, Field Emission Scanning Electron Microscope and Vibration Sample Magnetomete. With magnetic saturation of 9.10 emu g−1 and ~ 73% char yields, the TC4As-XG@IONP catalytic system demonstrated superparamagnetic property and high thermal stability. The magnetic properties of the TC4A-XG@IONP nanocatalyst system imparted by IONP enable it to be conveniently isolated from the reaction mixture by using an external magnet. In the XRD pattern of the TC4As-XG@IONP nanocatalyst, characteristic peaks were observed. This nanocatalyst is used as an eco-friendly, heterogeneous, and green magnetic catalyst in the synthesis of acridinedione derivatives through the one-pot pseudo-four component reaction of dimedone, various aromatic aldehydes, and ammonium acetate or aniline/substituted aniline. A combination of 10 mg of catalyst (TC4A-XG@IONP), 2 mmol of dimedone, and 1 mmol of aldehyde at 80 °C in a ethanol at 25 mL round bottom flask, the greatest output of acridinedione was 92% in 20 min.This can be attributed to using TC4A-XG@IONP catalyst with several merits as follows: high porosity (pore volume 0.038 cm3 g−1 and Pore size 9.309 nm), large surface area (17.306 m2 g−1), three dimensional structures, and many catalytic sites to active the reactants. Additionally, the presented catalyst could be reused at least four times (92–71%) with little activity loss, suggesting its excellent stability in this multicomponent reaction. Nanocatalysts based on natural biopolymers in combination with magnetic nanoparticles and macrocycles may open up new horizons for researchers in the field.

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“…The maximum adsorption capacities of CFX and LEV were 2000 and 1667 mg/g, respectively . The adsorption mechanism may involve hydrogen bonding, π–π interactions, as well as diffusion and entrapment within the hydrogel network . Furthermore, the adsorption efficiency of the magnetic hydrogel showed no significant decrease after 4 adsorption–desorption cycles .…”

Section: Separable Mofs For the Adsorption Of Ecsmentioning

confidence: 97%

“…According to the Langmuir model, the maximum adsorption capacity of ZIF-8/SC was 2887 mg/g, much higher than other adsorbents . Salehi et al explored the combination of magnetic separation strategy and MOF-gel by developing kC- g -PAAm@Fe 3 O 4 -MOF-199 magnetic hydrogel . kC- g -PAAm@Fe 3 O 4 provided a suitable matrix for the in situ growth of MOF.…”

Section: Separable Mofs For the Adsorption Of Ecsmentioning

confidence: 99%

“…MOF-199 was well embedded into the magnetic hydrogels and decorated on its surface, serving as an environmentally friendly adsorbent for the removal of ceftriaxone (CFX) and levofloxacin (LEV) from aquatic environments . The in situ synthesis of MOF-199 retained its crystallinity, porosity, and adsorption capacity . The maximum adsorption capacities of CFX and LEV were 2000 and 1667 mg/g, respectively .…”

Section: Separable Mofs For the Adsorption Of Ecsmentioning

confidence: 99%

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Separable Metal–Organic Framework-Based Materials for the Adsorption of Emerging Contaminants

Gao,

Zheng,

Duan

et al. 2024

Langmuir

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Thousands of chemicals have been released into the environment in recent decades. The presence of emerging contaminants (ECs) in water has emerged as a pressing concern. Adsorption is a viable solution for the removal of ECs. Metal−organic frameworks (MOFs) have shown great potential as efficient adsorbents, but their dispersed powder form limits their practical applications. Recently, researchers have developed various separable MOF-based adsorbents to improve their recyclability. The purpose of this review is to summarize the latest developments in the construction of separable MOF-based adsorbents and their applications in adsorbing ECs. The construction strategies for separable MOFs are classified into four categories: magnetic MOFs, MOF-fiber composites, MOF gels, and binder-assisted shaping. Typical emerging contaminants include pesticides, pharmaceuticals and personal care products, and endocrine-disrupting compounds. The adsorption performance of different materials is evaluated based on the results of static and dynamic adsorption experiments. Additionally, the regeneration methods of MOF-based adsorbents are discussed in detail to facilitate effective recycling and reuse. Finally, challenges and potential future research opportunities are proposed, including reducing performance losses during the shaping process, developing assessment systems based on dynamic purification and real polluted water, optimizing regeneration methods, designing multifunctional MOFs, and low-cost, large-scale synthesis of MOFs.

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In situ preparation of MOF-199 into the carrageenan-grafted-polyacrylamide@Fe3O4 matrix for enhanced adsorption of levofloxacin and cefixime antibiotics from water

Cited by 25 publications

References 75 publications

Removal of organic contamination from wastewater using granular activated carbon modified—Polyethylene glycol: Characterization, kinetics and isotherm study

Removal of organic contamination from wastewater using granular activated carbon modified—Polyethylene glycol: Characterization, kinetics and isotherm study

Utilizing magnetic xanthan gum nanocatalyst for the synthesis of acridindion derivatives via functionalized macrocycle Thiacalix[4]arene

Separable Metal–Organic Framework-Based Materials for the Adsorption of Emerging Contaminants

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