Synthesis of Pd@graphene oxide framework nanocatalyst with enhanced activity in Heck‐Mizoroki cross‐coupling reaction

Shekarizadeh, Arezoo; Azadi, Roya

doi:10.1002/aoc.5775

Cited by 11 publications

(4 citation statements)

References 33 publications

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“…GO is one such material that can serve as a substrate for stabilizing active sites. Therefore, we have focused on the development of novel GO scaffolds for pollution mitigation and various other applications . In this work, we have synthesized a novel GOF-based sulfur donor ligand (GOF-L S ) and have examined its ability to uptake iodine in both vapor phase and cyclohexane solution.…”

Section: Resultsmentioning

confidence: 99%

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Nanoarchitectured Graphene Organic Frameworks with High Iodine Uptake and Antibacterial Activity

Naseri,

Azadi,

Motamedi

et al. 2024

ACS Appl. Nano Mater.

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In the present study, a graphene organic framework (GOF-L S ) was successfully prepared by cross-linking nanosheets of graphene oxide (GO) with dimethyl-4,4′-(methylenebis (2-thioxo-2,3-dihydro-1H-imidazole-3,1-diyl)) dibutyrate (L S ) as a pillaring agent via a transesterification process. GOF-L S have been characterized by various analyses, such as Fourier transform infrared, BET, powder X-ray diffraction, energy-dispersive X-ray, thermogravimetric analysis, and FE-SEM. The oxygenic functional groups in GO and the sulfur atoms of L S give mesoporous GOF-L S a strong affinity for iodine molecules due to the formation of charge-transfer complexes between the host framework's sulfur and oxygen atoms and the guest iodine molecules. Therefore, GOF-L S exhibited a high adsorption capacity of 1315.105 mg/g for removing iodine from the iodine/ cyclohexane solution. In addition, GOF-L S also displayed extraordinary stability toward iodine, with an excellent capacity of 232 wt % for volatile iodine. To the best of our knowledge, this is the first report aiming at iodine uptake with a GOF built on a thioamidebased ligand. This study also aimed to investigate the antibacterial properties of GOF-L S . The antibacterial activity of GOF-L suspensions (80 μg/mL) was tested against four species of bacteria, including two Gram-negative (Escherichia coli, Pseudomonas aeruginosa) and two Gram-positive (Bacillus subtilis, Staphylococcus aureus). The results indicated that the GOF-L S were effective against all bacterial species, with especially remarkable growth inhibition against Gram-positive bacteria. In addition, GOF-L S demonstrated promising results in controlling antibiotic-resistant strains of E. coli and S. aureus in the environment. This study will contribute to the development of a cost-effective, metal-free, stable, and environmentally friendly multifunctional framework for the remediation of iodine-containing pollutants and the control of bacterial infections, addressing critical needs in environmental protection and public health.

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Section: Resultsmentioning

confidence: 99%

“…GO was produced using a modified Hummer process based on graphite flake powders as a starting material . 2 g of graphite powder and 1 g of sodium nitrate were mixed in a 250 mL round-bottomed flask.…”

Section: Methodsmentioning

confidence: 99%

Nanoarchitectured Graphene Organic Frameworks with High Iodine Uptake and Antibacterial Activity

Naseri,

Azadi,

Motamedi

et al. 2024

ACS Appl. Nano Mater.

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“…Continuing our research on synthesizing a novel GOF as a catalyst [30], we present the synthesis of a new GOF and its application for the removal of cadmium and lead ions from an aqueous solution. The synthesis of GOF is illustrated in Scheme 1.…”

Section: Resultsmentioning

confidence: 99%

Synthesis of a new porous graphene oxide framework (GOF) for high- performance ultrasonic-assisted removal of cadmium and lead ions from aqueous solution

2023

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A novel chelating adsorbent was successfully synthesized by cross-linking of 4, 4 0 , 4 00 -s-triazine-1, 3, 5-triyltri-p-aminobenzoic acid as a linker with nanosheets of graphene oxide to provide a 3-dimensional framework. Therefore, the adsorption process of Cd +2 and Pb +2 on the adsorbent was investigated by employing an ultrasonic bath. The optimum condition containing the small amount of adsorbent (10 mg) for both metals at pH=8 for Cd +2 and pH=5 for Pb +2 , and a short time of two minutes caused gaining an absorption capacity at a high level. The presence of nitrogen-functionalized groups in the porous Graphene Oxide Framework (GOF) contributed to the absorption of lead and cadmium ions. The kinetic models of pseudo-rst-order and pseudo-second-order were used to de ne the kinetic process. The experimental adsorption datum was properly suited to the kinetic model of the pseudo-second-order (R 2 = 0:990). It indicated that adsorbing ions of heavy metals onto GOF happens through a chemical process, and adsorption isotherms of Cd +2 and Pb +2 ions were in high-grade accordance with the Longmuir model. Eventually, because of the rapid adsorption kinetics, high removal capacity, perfect stability, and being reusable, this GOF can be used as a remediation adsorbent with high-performing heavy metals removal from aqueous solutions.

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“…Shekarizadeh and Azadi reported Pd@GOF in water and ethanol as a highly efficient catalyst for Heck–Mizoroki cross‐coupling reaction of aryl halides, styrene, and K 2 CO 3 . [ 99 ] The reaction proceeded in mild thermal reaction conditions (Scheme 6). The optimum amount of Pd@GOF as a catalyst for the reaction was examined.…”

Section: Go‐supported Metals As Catalystmentioning

confidence: 99%

Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts

Soni¹,

Sethiya²,

Sahiba³

et al. 2021

Applied Organom Chemis

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In the last decades, heterogeneous catalysis has emerged as a promising approach for sustainable synthesis. Among this, metal‐based graphene oxide (GO) as catalysts is widely used due to their unique properties such as physical and thermal stability of the catalysts in successive reaction runs and reusability. Metal‐supported GOs are quite prevalent and probably suitable acidic catalysts for both research laboratories and industrial processes. Herein, we have described the catalytic efficiency of various metal‐supported GO catalysts in different organic transformations like oxidation, reduction, multicomponent reactions, alkylation, condensation, dehydration, dehydrogenation, and Suzuki, Heck, and Sonogashira reactions. This article has been divided into three subsections: (i) GO‐supported metal as a catalyst, (ii) GO‐supported bimetal as a catalyst, and (iii) GO‐supported metal oxide as a catalyst for the easier understanding of the vast community of researchers. The foremost aim of this article is to summarize the uses of metal‐supported GO in the preparation of diverse synthetic molecules. The recent advancements in GO metal composites as catalysts with their applications have been deliberated.

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Synthesis of Pd@graphene oxide framework nanocatalyst with enhanced activity in Heck‐Mizoroki cross‐coupling reaction

Cited by 11 publications

References 33 publications

Nanoarchitectured Graphene Organic Frameworks with High Iodine Uptake and Antibacterial Activity

Nanoarchitectured Graphene Organic Frameworks with High Iodine Uptake and Antibacterial Activity

Synthesis of a new porous graphene oxide framework (GOF) for high- performance ultrasonic-assisted removal of cadmium and lead ions from aqueous solution

Recent advancements in organic synthesis catalyzed by graphene oxide metal composites as heterogeneous nanocatalysts

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