Facile one-pot green synthesis of Ag–Fe bimetallic nanoparticles and their catalytic capability for 4-nitrophenol reduction

Malik, Maqsood Ahmad; Alshehri, Abdulmohsen Ali; Patel, Rajan

doi:10.1016/j.jmrt.2021.02.063

Cited by 61 publications

(77 citation statements)

References 115 publications

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“…Ag-Fe (bimetallic) Green 0.08 Centrifugation [43] Ag Green 0.200 Not mentioned [44] Ag/GO Chemical method 0.13 Centrifugation [45] Ag Green 0.08 centrifugation [46] Ag Green colloidal 0.55 Not mentioned [47] Ag (solid) Green 0.2043 Centrifugation This work ChemistrySelect…”

Section: Methods Of Separation Of Catalyst Referencementioning

confidence: 99%

Bulk Level Synthesis of Solid Silver Nanocatalyst: Green Mediated Approach

et al. 2022

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The synthesis of silver nano particles has acquired more attention in terms of its applicability in various fields including medicine, environmental, electronics and energy. Owing to its exceptionally good catalytic activity, this particular study is focused on the synthesis of silver nanoparticles in bulk scale, free from capping agents. Apart from the conventional colloidal green synthesis, the silver nanoparticles were synthesized in solid form using a cheap green medium lime fruit extract. The green mediated sol-gel auto combustion method eliminates the use of hazardous reducing agents and tedious purification processes. The structure, morphology and purity of the synthesized material were explored through various analytical techniques. TEM studies revealed that the synthesized silver nanoparticles were spherical in shape with average particle size of 8 nm. The potential of the silver nanoparticle as a catalyst towards reduction of organic compounds and dye degradation was established by conducting nitrophenol reduction and methylene blue degradation as a basic reaction. The nanoparticles were found to have effectively catalysed the reduction of p-nitrophenol and degradation of methylene blue with the aid of sodium borohydride as reducing agent. It may open up new path for the chemical free synthesis of crystalline silver nanoparticles with enhanced catalytic property.

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Section: Methods Of Separation Of Catalyst Referencementioning

confidence: 99%

Bulk Level Synthesis of Solid Silver Nanocatalyst: Green Mediated Approach

et al. 2022

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“…Also, there is the possibility of the synergistic effect in bimetal catalysts. [115][116][117][118][119][120][121][122][123][124][125][126][127] In 2013, Bihua Xia et al 115 presented green-fabricated spherical Au/Ag bimetallic nanoparticles using degraded Pueraria mirica starch as both a reduction and stabilizing agent. Further, the authors tested the catalytic efficiency of the fabricated bimetallic Au/Ag nanoparticles towards the reduction of 4-nitrophenol.…”

Section: Bimetallic Nanoparticles As Catalystsmentioning

confidence: 99%

Reduction of 4-nitrophenol using green-fabricated metal nanoparticles

Mejía

Bogireddy

2022

RSC Adv.

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“…S4. Based on the O−K, S−K, Fe-L and Ag-L signals and their distribution area, Ag and S are dispersed on top of nZVI [28,29].…”

Section: Tce Removal: Batch Experimentsmentioning

confidence: 99%

Fabrication and Characterization of Bimetal Sulfide Hybrid Ag/S-ZVI for Dechlorination of Trichloroethylene

Zhang¹,

Wang²,

Guo³

et al. 2022

Environmental Engineering Research

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Sulfidated and bimetal modification can improve the reactivity and selectivity of zero-valent iron in contaminant removal. However, previous studies were focused on unilateral material approaches. In this article, a new hybrid composite Ag/S-ZVI was prepared by doping elemental silver on surface of sulfidated nanoscale zerovalent iron (S-nZVI). The results of X-Ray Diffraction (XRD), energy dispersive spectrometer (EDS) and X-ray Photoelectron Spectroscopy (XPS) indicated Ag was dispersed on the surface of S-nZVI. Scanning electron microscope (SEM) images displayed Ag/S-ZVI was irregular clusters with rough surfaces, small agglomeration, and quasi-spherical in shape. The removal of TCE by Ag/S-ZVI was 90.4% within 20 min. The reaction rate constant Kobs of Ag/S-ZVI was 2.59 times or 1.85 times of nZVI or S-nZVI, respectively. Cycling experiments showed that Ag/S-ZVI had good recycling ability, and the removal rate of TCE reached 72.6% at the third cycle. The addition of Ag+ makes S-nZVI as an abundant and efficient source of reducing electrons. The Fe0 core can break C-Cl bonds by releasing electrons and the surface layer of Ag favors the transfer efficiency of electrons. Such study provides an efficient and robust ternary system for the remediation of TCE in groundwater.

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Facile one-pot green synthesis of Ag–Fe bimetallic nanoparticles and their catalytic capability for 4-nitrophenol reduction

Cited by 61 publications

References 115 publications

Bulk Level Synthesis of Solid Silver Nanocatalyst: Green Mediated Approach

Bulk Level Synthesis of Solid Silver Nanocatalyst: Green Mediated Approach

Reduction of 4-nitrophenol using green-fabricated metal nanoparticles

Fabrication and Characterization of Bimetal Sulfide Hybrid Ag/S-ZVI for Dechlorination of Trichloroethylene

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