Palladium nanocatalyst: green synthesis, characterization, and catalytic application

Garole, Vaman J.; Choudhary, Bharat C.; Tetgure, Sandesh R.; Garole, Dipak J.; Borse, Amulrao U.

doi:10.1007/s13762-018-2173-1

Cited by 31 publications

(7 citation statements)

References 29 publications

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“…However, after doping them with palladium their catalytic property enhanced many fold suggesting palladium increased catalytic potency of iron and TiO 2 . More notably, the Cr (VI) reduction obtained for GSE-PdNPs is far higher as compared to the previous studies (Table 2) [2,11,12,19,[45][46][47][48][49][50][51][52][53][54][55].…”

Section: Varying Initial Concentration Of Chromiumcontrasting

confidence: 54%

Green mediated synthesis of palladium nanoparticles using aqueous leaf extract of Gymnema sylvestre for catalytic reduction of Cr (VI)

Kadam¹,

Madiwale²,

Bashte³

et al. 2020

SN Appl. Sci.

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Palladium nanoparticles (PdNPs) were synthesised using a microwave technique using Gymnema sylvestre (GSE) leaf extract. PdNPs were tailored to different PdCl 2 and plant extract concentrations. Using XRD the crystalline existence of GSE-PdNPs has been established, confirming the formation of face-centered cubic structure. UV-Vis spectra of PdNPs confirmed the reduction of Pd 2+ to Pd 0. The FTIR spectra indicate the existence of functional groups which are responsible for nanoparticles reduction and progression. The SEM discloses quasi-sphere nanoparticles without agglomeration or aggregation which TEM confirms further. The reduction of Cr (VI) was performed with PdNPs (10 mg/L) and achieved a reduction of 96% within 30 min. In order to investigate the efficient reduction of chromium from Cr (VI) to Cr (III), different reaction system parameters have been optimised.

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Section: Varying Initial Concentration Of Chromiumcontrasting

confidence: 54%

Green mediated synthesis of palladium nanoparticles using aqueous leaf extract of Gymnema sylvestre for catalytic reduction of Cr (VI)

Kadam¹,

Madiwale²,

Bashte³

et al. 2020

SN Appl. Sci.

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“…[5]. Therefore, recently more simple, efficient, and sustainable synthetic strategies have been developed [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Palladium-Nanoparticles Biohybrids in Applied Chemistry

et al. 2020

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Applied nanotechnology has experienced tremendous advance over the last decade. In this study, the efficient synthesis of highly stable palladium-nanoparticles (PdNPs) biohybrids based on the application of an enzyme, which induces in situ the generation of spherical nanoparticles on the protein network, has been described. A heterogeneous material was synthesized formed with PdNPs with average sizes between 1.5 to 5 nm. These Pd nanocatalysts were successfully applied in different chemical processes: C-C bonding reactions (Suzuki and Heck reactions) and cascade processes combining enzymatic and metallic activities (hydrolysis-reduction, esterification-racemization).

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“…According to the processing of the data at the maximum absorption wavelength, a linear fit was performed to obtain the relationship between the catalytic time t and ln( C t / C 0 ) in Figure c. Following the rate equation as ln( C t / C 0 ) = ln( A t / A 0 ) = − Kt , the experimental data of 4-NP reduction were evaluated. ,− Also from the linear fitting (Figure c), it was calculated that the linear fitting constants of PEI-Ag0.5 and PEI-Ag24 are 0.11 and 0.39 min –1 . Figure d,e shows the results of catalytic tests by PEI-Pd0.5 and PEI-Pd24, respectively.…”

Section: Resultsmentioning

confidence: 99%

“…For example, Garole et al did a lot of research on biosynthesized palladium nanocatalyst (Pd-NanoCata) using a plant extract from a medicinally important plant, and the separated palladium nanocatalyst is used for catalytic research and has good application for the reduction of 4-NP. 5 Rasaki et al successfully prepared Ag/ ZnO nanorods by a facile and cost-saving liquid precipitationcitrate reduction process, which shows a synergetic catalytic performance for the 4-NP reduction reaction. 6 Compared with Ag nanoparticles, the catalytic performance and stability are improved.…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Ag/Pd Nanoparticle-Loaded Poly(ethylene imine) Composite Hydrogels with Highly Efficient Catalytic Reduction of 4-Nitrophenol

et al. 2020

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Poly(ethylene imine) (PEI) has abundant amino groups in a macromolecular chain and can be used as a graft source for metal nanocomposites, which shows excellent ability to form stable complexes with heavy metal ions. In this work, a simple and convenient method was used to make PEI into a stable hydrogel with 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide-N-hydroxysuccinimide and subsequently coprecipitate with silver nitrate solution or palladium chloride solution to form metal-loaded composite hydrogels. In addition, the characterizations of composite hydrogels were investigated by scanning electron microscopy, specific surface area tests (Brunauer–Emmett–Teller), X-ray photoelectron spectroscopy, and ultraviolet spectroscopy. The properties of composite hydrogels on the catalytic reduction of 4-nitrophenol were studied. The results showed that the composite hydrogels could be easily separated from the water environment, which indicated the large-scale potential application in organic catalytic degradation and wastewater treatment.

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Palladium nanocatalyst: green synthesis, characterization, and catalytic application

Cited by 31 publications

References 29 publications

Green mediated synthesis of palladium nanoparticles using aqueous leaf extract of Gymnema sylvestre for catalytic reduction of Cr (VI)

Green mediated synthesis of palladium nanoparticles using aqueous leaf extract of Gymnema sylvestre for catalytic reduction of Cr (VI)

Palladium-Nanoparticles Biohybrids in Applied Chemistry

Facile Synthesis of Ag/Pd Nanoparticle-Loaded Poly(ethylene imine) Composite Hydrogels with Highly Efficient Catalytic Reduction of 4-Nitrophenol

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