Catalytic reduction of nitro-phenolic compounds over Ag, Ni and Co nanoparticles catalysts supported on γ-Al2O3

Aazza, Mustapha; Ahlafi, Hammou; Moussout, Hamou; Mounir, Chadia; Fadel, Alexandre; Addad, Ahmed

doi:10.1016/j.jece.2020.103707

Cited by 28 publications

(17 citation statements)

References 58 publications

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“…Although there are no reports using the Ag electrode as an electrochemical sensor for detecting NFZ, many literatures show that the Ag nanoparticle can be a catalyst when using NaBH 4 as a reducing agent. The results indicate that metallic sites activate the adsorbed species of the nitrogroup and borohydride (BH 4 – ) ions, which react superficially on the surface of catalysts …”

Section: Introductionmentioning

confidence: 99%

“…The results indicate that metallic sites activate the adsorbed species of the nitrogroup and borohydride (BH 4 − ) ions, which react superficially on the surface of catalysts. 24 Deep eutectic solvents (DESs) are classified as types of ionic liquids. They have some similar properties, including negligible vapor pressure, good conductivity, and a wide electrochemical window, and are nonflammable.…”

Section: ■ Introductionmentioning

confidence: 99%

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Electrodeposition of Silver in a Ternary Deep Eutectic Solvent and the Electrochemical Sensing Ability of the Ag-Modified Electrode for Nitrofurazone

Pan

Hung

et al. 2020

Langmuir

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The determination of nitrofurazone (NFZ) has received substantial attention because it is a kind of antibiotic drug. Herein, a rapid and low-cost electrochemical sensor for the analysis of NFZ is reported. The method uses Ag-modified electrodes in which different surfactants, hexadecyltrimethylammonium bromide and sodium dodecyl sulfate, in a ternary choline chloride−urea−glycerol deep eutectic solvent were deposited. The physical properties of the solutions with various surfactants are investigated by a conductivity meter, viscometer, and tensiometer. The morphologies and crystallinity of the Ag-modified electrodes were characterized by using scanning electron microscopy, transmission electron microscopy, and powder X-ray diffraction. Electrochemical impedance spectroscopy and CV analyses indicate that the as-prepared Ag-SDS electrode exhibited better performance as a NFZ sensor. The dynamic linear range of NFZ is 0.66−930 μM with a corresponding detection limit of 0.37 μM. The proposed electrochemical sensor was applied to detect NFZ in the aquaculture water sample, and the results showed good recovery in the range from 100.28 to 102.65%.

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Section: Introductionmentioning

confidence: 99%

Section: ■ Introductionmentioning

confidence: 99%

Electrodeposition of Silver in a Ternary Deep Eutectic Solvent and the Electrochemical Sensing Ability of the Ag-Modified Electrode for Nitrofurazone

Pan

Hung

et al. 2020

Langmuir

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“…According to the literature p -NP reduction can occur by either the Langmuir–Hinshelwood (LH) or Eley–Rideal (ER) mechanism. 19 The LH reaction mechanism is applicable when a decrease in K app values for p -NP reduction with NaBH 4 is observed along with increasing p -NP concentration while an increase in K app values is observed in direct proportion to NaBH 4 concentration. Meanwhile, the ER reaction model is applicable when an increase in K app values is observed with increasing p -NP concentration.…”

Section: Resultsmentioning

confidence: 99%

“…This can reduce the required quantity of noble metals and offers unprecedented synergistic effects that enhance the electronics and catalytic properties of alloys. 14–17 In the recent past, cheaper and stable non-noble metals for instance Cu, 5,18 Co, 19 Ni, 7 and Fe (ref. 20) have received great consideration to produce alloys with noble metals.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol

et al. 2022

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“…Recently, metal nanoparticles play a significant role in nanocatalysis field because of the enhancement in the physical and chemical properties upon transition from bulk to nanomaterials improving the catalytic performance [8]. Therefore, the reduction of nitro compounds is usually carried out using various catalytic systems based on transition metals, for instance Ni [9], Fe [10], Pt [11], Ru [12], Au [13], and Ag [14] with diversities of hydrogen sources. Among these metals, Pd nanoparticles have been widely studied as catalysts for synthesize of anilines due to its high surface-to-volume ratio and unique properties such as high selectivity, recyclability and strong interactions with hydrogen [15,16].…”

Section: Introductionmentioning

confidence: 99%

GO supported Schiff base/palladium complex: a superior catalyst for the hydrogenation of nitroarenes

Hassan

Tolba

El-Sharkawyb

2020

Frontiers in Scientific Research and Technology

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Reducing nitroarenes to the appropriate amines is a major chemical reaction in all industrial and environmental perspectives. In this work, a novel palladium (II) Schiff/base complex supported on graphene oxide (GO) was synthesized via a coordination interaction as an efficient heterogeneous catalyst. GO was functionalized with 3-aminopropyltriethoxysilane (3-APTES) by the condensation reaction, and then the imidazolium Schiff base ligand was fabricated from the reaction of 5-(1methylimidazolium)-vanillyl chloride. The synthesized materials were characterized by various techniques including Raman spectroscopy, FTIR, XRD, elementary analysis, TGA, SEM, and TEM. The as-prepared heterogeneous catalyst was applied in the catalytic reduction of nitrobenzene using NaBH4 in aqueous media. The results exhibited excellent catalytic performance and the reaction kinetics followed a pseudofirst-order with rate constant equals to 0.321 min-1. The catalyst was recovered and recycled with high durability even for four catalytic cycles. GO-supported Pd(II) Schiff / base complex is potentially appealing to heterogeneous catalysts for the hydrogenation process.

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Catalytic reduction of nitro-phenolic compounds over Ag, Ni and Co nanoparticles catalysts supported on γ-Al2O3

Cited by 28 publications

References 58 publications

Electrodeposition of Silver in a Ternary Deep Eutectic Solvent and the Electrochemical Sensing Ability of the Ag-Modified Electrode for Nitrofurazone

Electrodeposition of Silver in a Ternary Deep Eutectic Solvent and the Electrochemical Sensing Ability of the Ag-Modified Electrode for Nitrofurazone

Synthesis of bimetallic Co–Pt/cellulose nanocomposites for catalytic reduction of p-nitrophenol

GO supported Schiff base/palladium complex: a superior catalyst for the hydrogenation of nitroarenes

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