Preparation of Ag‐doped g‐C3N4 Nano Sheet Decorated Magnetic γ‐Fe2O3@SiO2 Core–Shell Hollow Spheres through a Novel Hydrothermal Procedure: Investigation of the Catalytic activity for A3, KA2 Coupling Reactions and [3 + 2] Cycloaddition

Sadjadi, Samahe; Malmir, Masoumeh; Heravi, Majid M.

doi:10.1002/aoc.4413

Cited by 29 publications

(2 citation statements)

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“…In the pursuit of our research on the design of novel hybrid catalytic systems based on g-C 3 N 4 49 – 51 and IL 52 – 54 , herein, we report the synthesis of a novel magnetic heterogeneous hybrid catalyst. In this catalytic system, magnetic SGSN was functionalized with vinyl IL and then polymerized with vinyl imidazole to form PVI.…”

Section: Introductionmentioning

confidence: 99%

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

Dorraj

Sadjadi

Heravi

2020

Sci Rep

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A novel magnetic catalyst, (SGCN/Fe 3 O 4 /PVIs/Pd) was synthesized by growing of poly(1-vinylimidazole) on the surface of ionic liquid decorated magnetic S-doped graphitic carbon nitride, followed by stabilization of palladium nanoparticles. Catalytic activity of the prepared heterogeneous catalyst was explored for the catalytic reduction of hazardous dyes, methyl orange and Rhodamine B, in the presence of NaBH 4 . Besides, the effects of the reaction variables on the catalytic activity were investigated in detail. The kinetics study established that dye reduction was the first order reaction and the apparent activation energy was calculated to be 72.63 kJ/mol and 68.35 kJ/mol 1 for methyl orange and Rhodamine B dyes, respectively. Moreover, ΔS # and ΔH # values for methyl orange were found to be − 33.67 J/mol K and 68.39 kJ/mol respectively. These values for Rhodamine B were − 45.62 J/mol K and 65.92 kJ/mol. The recycling test verified that the catalyst possessed good stability and reusability, thereby making it a good candidate for the catalytic purposes. Furthermore, a possible catalytic mechanism for dye catalytic reduction over SGCN/Fe 3 O 4 /PVIs/Pd was proposed.

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Section: Introductionmentioning

confidence: 99%

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

Dorraj

Sadjadi

Heravi

2020

Sci Rep

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“…Thus, the development of facile and efficient heterogeneous catalysts for the A 3 reactions still continues to be in strong demand. As heterogeneous catalysts, supported Cu catalyst (MCM-TSCuI, [19] Cu/HM, [20] CMC-Cu II , [21] and Cu 0 @HAP@γ-Fe 2 O 3 [22] ), copperbased MOF (Cu-MOF-74, [23] and Cu-MOFs [24] ), supported Ag (γ-Fe 2 O 3 @SiO 2 /g-C 3 N 4 /Ag, [25] and AgI-K10 [26] ), core-shell Au@MOF-5, [27] Au NPs-Fe 3 O 4 -rGO, [28] and so on, were successfully employed to catalyze A 3 coupling reactions. Meanwhile, to gain more diverse polysubstituted propargylamines, another variant of A 3 coupling, i.e.…”

Section: Introductionmentioning

confidence: 99%

Cu^II@PAA/PVC mesoporous fibers: A hybrid wedding as a high‐performance versatile heterogeneous catalyst for A₃, KA₂, and decarboxylative A₃ reactions

Jiang

Zhou

Sun

et al. 2020

Applied Organom Chemis

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Efforts made on the development of a novel, simple, cost‐effective, and efficient approach to fabricate a copper catalyst immobilized on mesoporous poly (acrylic acid)/poly (vinyl chloride) hybrid fibers (CuII@PAA/PVC) for versatile catalytic applications in A3, KA2, and decarboxylative A3 couplings has been described in this present work. The characterization of the mesoporous hybrid fibers was well performed by BET, FTIR, SEM, EDX, XPS, and TGA techniques. The pore structure and surface area were calculated by using BET measurement analysis. The obtained mesoporous CuII@PAA/PVC fibers exert high catalytic performance in the synthesis of propargylamines via one‐pot A3, KA2, and decarboxylative A3 reactions over a series of substrates without employing expensive ligands or inert atmosphere. The active Cu2+ species chelating with carboxylate groups in PAA/PVC hybrid fibers plays a key role in the catalysis. Meanwhile, the unique mesoporous structure and fiber morphology facilitate a better mass transfer and enlarge its contact area with substrates in the course of a reaction. Moreover, the Cu2+–carboxylate chelation could suppress the leaching of active Cu2+ species from the catalyst and thus lead to the catalyst has excellent performance and good durability as well as reusability.

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Pd@magnetic Carbon Dot Immobilized on the Cyclodextrin Nanosponges ‐ Biochar Hybrid as an Efficient Hydrogenation Catalyst

et al. 2019

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With the aim of benefiting from the advantage of magnetic catalysts, chemistry of cyclodextrin, i. e. the capability of formation of inclusion complex and acting as phase transferring agent, as well as biochars as biocompatible, cost‐effective and efficient catalyst support, for the first time a ternary hybrid system composed of cyclodextrin nanosponges (CDNS), palladated magnetic carbon quantum dot (Pd@CQDs@Fe) and Bell‐pepper‐derived biochar (Biochar) was designed and prepared through functionalization of CDNS and Biochar and their covalent conjugation followed by immobilization of Pd@CQDs@Fe. The hybrid system was characterized and then applied as a magnetic heterogeneous catalyst for promoting hydrogenation of nitroarenes. The results confirmed high catalytic activity, selectivity and recyclability of the catalyst (up to ten reaction runs) as well as low Pd leaching. Comparing the catalytic activity of the catalyst with some control samples, the contribution of CDNS, Biochar and CQDs@Fe to the catalysis was confirmed.

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Preparation of Ag‐doped g‐C₃N₄ Nano Sheet Decorated Magnetic γ‐Fe₂O₃@SiO₂ Core–Shell Hollow Spheres through a Novel Hydrothermal Procedure: Investigation of the Catalytic activity for A³, KA² Coupling Reactions and [3 + 2] Cycloaddition

Cited by 29 publications

References 64 publications

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

Cu^II@PAA/PVC mesoporous fibers: A hybrid wedding as a high‐performance versatile heterogeneous catalyst for A₃, KA₂, and decarboxylative A₃ reactions

Pd@magnetic Carbon Dot Immobilized on the Cyclodextrin Nanosponges ‐ Biochar Hybrid as an Efficient Hydrogenation Catalyst

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Preparation of Ag‐doped g‐C3N4 Nano Sheet Decorated Magnetic γ‐Fe2O3@SiO2 Core–Shell Hollow Spheres through a Novel Hydrothermal Procedure: Investigation of the Catalytic activity for A3, KA2 Coupling Reactions and [3 + 2] Cycloaddition

Cited by 29 publications

References 64 publications

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

Pd on poly(1-vinylimidazole) decorated magnetic S-doped grafitic carbon nitride: an efficient catalyst for catalytic reduction of organic dyes

CuII@PAA/PVC mesoporous fibers: A hybrid wedding as a high‐performance versatile heterogeneous catalyst for A3, KA2, and decarboxylative A3 reactions

Pd@magnetic Carbon Dot Immobilized on the Cyclodextrin Nanosponges ‐ Biochar Hybrid as an Efficient Hydrogenation Catalyst

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Preparation of Ag‐doped g‐C₃N₄ Nano Sheet Decorated Magnetic γ‐Fe₂O₃@SiO₂ Core–Shell Hollow Spheres through a Novel Hydrothermal Procedure: Investigation of the Catalytic activity for A³, KA² Coupling Reactions and [3 + 2] Cycloaddition

Cu^II@PAA/PVC mesoporous fibers: A hybrid wedding as a high‐performance versatile heterogeneous catalyst for A₃, KA₂, and decarboxylative A₃ reactions