Flower-like Bi2O2CO3/NiFe2O4 magnetically recoverable nanocomposites: Preparation, characterization and their catalytic application in the reduction of 4-nitrophenol to 4-aminophenol

Zarringhadam, Parisa; Farhadi, Saeed

doi:10.1016/j.jallcom.2017.09.247

Cited by 25 publications

(9 citation statements)

References 76 publications

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“…Finally, the obtained results in the reduction of 4‐NP with NaBH 4 catalyzed by BOC/ZFO30% were compared with some reported catalysts in the literature . From Table , it is clear that with respect to the reaction conditions and/or reaction times, the present method is more suitable and/or superior.…”

Section: Resultsmentioning

confidence: 89%

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Zarringhadam

Farhadi

2018

Applied Organom Chemis

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Sheet-like Bi 2 O 2 CO 3 /ZnFe 2 O 4 magnetic nanocomposites (denoted as BOC-ZFO) with different amounts of magnetic ZnFe 2 O 4 (ZFO) nanoparticles were successfully produced by a simple hydrothermal route. X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), atomic force microscopy (AFM), energy dispersive X-ray spectroscopy (EDX), UV-vis diffuse reflectance spectroscopy (UV-vis DRS), vibrating sample magnetometer (VSM), and N 2 adsorption-desorption examination were utilized to analyze the structure, morphology, size, phase composition, optical and magnetic properties of the synthesized nanocomposites. The results demonstrated the successful deposition of uniform ZFO nanoparticles onto the surface of sheetlike BOC nanostructures. Then, the catalytic activity of magnetic BOC/ZFO nanocamposites was investigated for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) by using sodium borohydride (NaBH 4 ) in hydrous solution and at room temperature. The results showed that BOC/ZFO nanocamposite with 30%wt of ZFO showed the best performance in the reduction of 4-NP with 100% conversion into the amino derivative during 30 min. The effect of catalyst dosage was also investigated on the efficiency of reduction process. Under similar conditions, 2-nitrophenol (2-NP), 4-nitroaniline (4-NA) and 2-nitroaniline (2-NA) were also reduced to the amino derivatives within 16-29 min. The magnetic BOC/ZFO catalyst could be easily separated from the reaction system by an external magnet.

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Section: Resultsmentioning

confidence: 89%

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Zarringhadam

Farhadi

2018

Applied Organom Chemis

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“…Ag NPs have been generally used as excellent catalysts with high catalytic activity and selectivity for catalytic reduction or degradation of organic pollution in aqueous solution [38,39,46,49]. Many reports are available on the application of metal and metal oxides nanocatalysts for the reduction of nitrophenols in the presence of NaBH 4 [50]. Herein, the catalytic reduction of 4-NP by NaBH 4 was used as a model reaction to investigate the catalytic performances of CuFe 2 O 4 /CNC, CuFe 2 O 4 /CNC@Ag, and CuFe 2 O 4 /CNC@Ag@ZIF-8 nanocomposites.…”

Section: Catalytic Reduction Of 4-nitrophenolmentioning

confidence: 99%

“…In addition, the appearance of the new peak at ≈300 nm in the UV-Vis spectra suggested that the CuFe 2 O 4 /CNC@Ag@ZIF-8 nanocomposites catalyze the reduction of 4-NP to give 4-aminophenol as the sole product. nitrophenols in the presence of NaBH4 [50]. Herein, the catalytic reduction of 4-NP by NaBH4 was used as a model reaction to investigate the catalytic performances of CuFe2O4/CNC, CuFe2O4/CNC@Ag, and CuFe2O4/CNC@Ag@ZIF-8 nanocomposites.…”

Section: Catalytic Reduction Of 4-nitrophenolmentioning

confidence: 99%

Preparation of Magnetic CuFe2O4@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals

Zhang

Zhao

et al. 2019

Molecules

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A facile approach was successfully developed for synthesis of cellulose nanocrystals (CNC)-supported magnetic CuFe 2 O 4 @Ag@ZIF-8 nanospheres which consist of a paramagnetic CuFe 2 O 4 @Ag core and porous ZIF-8 shell. The CuFe 2 O 4 nanoparticles (NPs) were first prepared in the presence of CNC and dispersant. Ag NPs were then deposited on the CuFe 2 O 4 /CNC composites via an in situ reduction directed by dopamine polymerization (PDA). The CuFe 2 O 4 /CNC@Ag@ZIF-8 nanocomposite was characterized by TEM, FTIR, XRD, N 2 adsorption-desorption isotherms, VSM, and XPS. Catalytic studies showed that the CuFe 2 O 4 /CNC@Ag@ZIF-8 catalyst had much higher catalytic activity than CuFe 2 O 4 @Ag catalyst with the rate constant of 0.64 min −1 . Because of the integration of ZIF-8 with CuFe 2 O 4 /CNC@Ag that combines the advantaged of each component, the nanocomposites were demonstrated to have an enhanced catalytic activity in heterogeneous catalysis. Therefore, these results demonstrate a new method for the fabrication of CNC-supported magnetic core-shell catalysts, which display great potential for application in biocatalysis and environmental chemistry.Molecules 2020, 25, 124 2 of 15 More often, hybrid composites are fabricated through an in-situ method, where the templates have a high affinity towards metal ions that allows for the synthesis of metallic nanoparticles [8]. Cellulose nanocrystals (CNC) are derived from abundant cellulosic resources such as plants and microbial cellulose via sulfuric acid hydrolysis [9,10]. CNC have well-defined size and morphology, high specific surface area, high aspect ratio, high crystalline order, chirality, high mechanical strength, and controllable surface chemistry [11], which are appealing in a plethora of materials to catalytic applications. As reported in our previous research [12], the CuFe 2 O 4 /CNC nanocomposites show good dispersity and it has been suggested that the nanocomposites do catalyze 4-NP reduction.To further improve the catalytic activity, various core/shell-structured magnetic nanocatalysts have been applied in nanocatalysis [13][14][15][16]. The as-obtained CuFe 2 O 4 based core-shell nanocomposites showed excellent catalytic activity, magnetic separation, and magnetic carrying in nanocatalysis. Recently, the Ag modified magnetic composites have gained increasing attention because of the high catalytic activity of the Ag component, the good magnetic responsiveness of the magnetic core, and the relatively facile fabrication process [17][18][19]. Various noble metals, including Au, Pd, and Pt have been widely employed as catalysts for the reduction of 4-NP to 4-AP by NaBH 4 in aqueous media [20][21][22][23]. Moreover, Ag is more suitable for large-scale application than other noble metals (Au, Pd, and Pt) because of its low price [24]. Dopamine can self-polymerize under specific conditions to form a polydopamine (PDA) complex which has the ability of adhering onto the surface of various materials due to the strong stickiness [25][26][27] and the abundant catech...

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“…In order to show the advantage of the present method, we have compared the obtained results in the reduction of 4-NP with NaBH 4 catalyzed by Bi 2 O 2 CO 3 / CoFe 2 O 4 30% with some reported catalysts in the literature. [68][69][70][71][72][73][74][75][76][77][78][79][80] From Table 1, it is clear that with respect to the reaction conditions and/or reaction times, the present method is more suitable and/or superior. It is clear that reaction in the presence of most reported catalysts required longer reaction times ( Table 1, entries 1-10).…”

Section: Catalytic Reduction Of 4-nitrophenolmentioning

confidence: 99%

Hydrothermal Synthesis of Novel Magnetic Plate-Like Bi2O2CO3/CoFe2O4 Hybrid Nanostructures and Their Catalytic Performance for the Reduction of Some Aromatic Nitrocompounds

Zarringhadam

Farhadi

2018

ACSi

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Novel magnetically separable Bi2O2CO3/CoFe2O4 nanocomposites were fabricated by a feasible hydrothermal route. Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-vis diffuse reflectance spectroscopy (DRS), vibrating sample magnetometer (VSM), and N2 adsorption-desorption analysis were employed to examine the structure, morphology, particle size, phase composition, optical and magnetic properties of the as-synthesized nanocomposites. The results of the findings showed demonstrated the successful coupling of spherical CoFe2O4 nanoparticles and plate-like Bi2O2CO3 nanostructures. The catalytic performance of magnetic Bi2O2CO3/CoFe2O4 nanocamposites was evaluated in the reduction of some aromatic nitrocompounds such as nitrophenols and nitroanilines by using sodium borohydride (NaBH4) aqueous solution at room temperature. The Bi2O2CO3/CoFe2O4 nanocamposite with 30 %wt. CoFe2O4 exhibited the best performance in the reduction of aromatic nitrocompounds with 100% conversion into the corresponding amino compounds within 15-30 min with rate constant of 0.10-0.24 min-1. The effect of catalyst dosage was also investigated on the efficiency of reduction process. Furthermore, magnetic Bi2O2CO3/CoFe2O4 nanocomposite could be easily removed by an external magnet from the reaction system.

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Flower-like Bi2O2CO3/NiFe2O4 magnetically recoverable nanocomposites: Preparation, characterization and their catalytic application in the reduction of 4-nitrophenol to 4-aminophenol

Cited by 25 publications

References 76 publications

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Preparation of Magnetic CuFe2O4@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals

Hydrothermal Synthesis of Novel Magnetic Plate-Like Bi2O2CO3/CoFe2O4 Hybrid Nanostructures and Their Catalytic Performance for the Reduction of Some Aromatic Nitrocompounds

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Flower-like Bi2O2CO3/NiFe2O4 magnetically recoverable nanocomposites: Preparation, characterization and their catalytic application in the reduction of 4-nitrophenol to 4-aminophenol

Cited by 25 publications

References 76 publications

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi2O2CO3/ZnFe2O4) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi2O2CO3/ZnFe2O4) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Preparation of Magnetic CuFe2O4@Ag@ZIF-8 Nanocomposites with Highly Catalytic Activity Based on Cellulose Nanocrystals

Hydrothermal Synthesis of Novel Magnetic Plate-Like Bi2O2CO3/CoFe2O4 Hybrid Nanostructures and Their Catalytic Performance for the Reduction of Some Aromatic Nitrocompounds

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Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines

Novel sheet‐like bismuth subcarbonate‐zinc ferrite (Bi₂O₂CO₃/ZnFe₂O₄) magnetically recyclable nanocomposites: Synthesis, characterization and enhanced catalytic performance for the reduction of nitrophenols and nitroanilines