Noble Metal Nanoparticles in Pectin Matrix. Preparation, Film Formation, Property Analysis, and Application in Electrocatalysis

Dolinska, Joanna; Hołdyński, Marcin; Pieta, Piotr; Lisowski, Wojciech; Ratajczyk, Tomasz; Pałys, Barbara; Jabłońska, A.; Opałło, Marcin

doi:10.1021/acsomega.0c03167

Cited by 14 publications

(3 citation statements)

References 80 publications

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“…Pectin has many properties related to its safe application in food and pharmaceuticals, with it being biocompatible and harmless; however, this also limits its use in applications as a microbial control agent, where hybrid particles with better performance have been found, such as combinations with chitosan or metals [130,131]. Pectin can be used as a scaffold or support in the development of biosensors and conductive material, because by itself it does not have sufficient conductive, magnetic, or bioactive capacities [132][133][134].…”

Section: Multidisciplinary Industrial Applicationsmentioning

confidence: 99%

Pectin Microspheres: Synthesis Methods, Properties, and Their Multidisciplinary Applications

2022

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There is great contemporary interest in using cleaner technologies through green chemistry and utilizing biopolymers as raw material. Pectin is found on plant cell walls, and it is commonly extracted from fruit shells, mostly apples or citrus fruits. Pectin has applications in many areas of commercial relevance; for this reason, it is possible to find available information about novel methods to transform pectin and pursuing enhanced features, with the structuring of biopolymer microspheres being highly cited to enhance its activity. The structuring of polymers is a technique that has been growing in recent decades, due to its potential for diverse applications in various fields of science and technology. Several techniques are used for the synthesis of microspheres, such as ionotropic gelation, extrusion, aerosol drying, or emulsions, with the latter being the most commonly used method based on its reproducibility and simplicity. The most cited applications are in drug delivery, especially for the treatment of colon diseases and digestive-tract-related issues. In the industrial field, it is used for protecting encapsulated compounds; moreover, the environmental applications mainly include the bioremediation of toxic substances. However, there are still many possibilities for expanding the use of this biopolymer in the environmental field.

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Section: Multidisciplinary Industrial Applicationsmentioning

confidence: 99%

Pectin Microspheres: Synthesis Methods, Properties, and Their Multidisciplinary Applications

2022

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“…6 compares the FT-IR spectra of initial PGA, its sodium salt (PGA@Na), and NBC_8.7. The peak assignment of PGA was done according to [8,20]. The spectra of PGA@Na and NBC were similar in the anomeric range (1200 − 900 cm -1 ).…”

Section: Ft-ir Spectroscopymentioning

confidence: 99%

Nanobiocomposites of silver nanoparticles with polygalacturonic acid obtained by one-pot green synthesis: solid-state characterization

Gasilova

Александрова

Vlasova

et al. 2022

Preprint

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Silver nanoparticles (AgNP) were obtained by reduction of silver ions in alkaline solutions of polygalacturonic acid (PGA), the main chain of pectins. The growth of AgNP during the reaction was monitored by UV/Vis spectroscopy. The PGA solutions containing AgNPs were nanoprecipitated into an anti-solvent (ethanol) bath. Spherical particles of ca. 70 nm observed by atomic force microscopy embedded spherical AgNPs registered by transmission electron (TEM) and scanning electron (SEM) microscopies. The AgNP’s distribution determined both by TEM and SEM was Log-normal with the most probable AgNP’s size about 10 - 18 nm. The X-Ray diffraction (XRD) pattern of AgNPs was in accord with the face-centered cubic lattice of silver. The size of silver nanocrystals estimated by XRD was within the interval determined by TEM and SEM. Fourier-transform infrared spectra indicated ( i ) the bidentate bridging between carboxylate groups of PGA and silver atoms on AgNP surface; ( ii ) the strengthening of hydrogen bonds in the nanobiocomposites. The nanobioconjugation of PGA with the growing silver clusters during the synthesis was supposed to produce strip-like defects on AgNP surface that were observed by TEM.

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“…A number of works are devoted to catalysts for processes such as hydrogenation [1,33,34], oxidation [3,4], coupling reaction and other possible catalytic syntheses [8,19,20,35]. There are few data on pectin-containing catalysts, their design and use as stabilizer for metal nanoparticles [2][3][4][36][37][38][39].…”

Section: Introductionmentioning

confidence: 99%

Polysaccharide-Stabilized Pd-Ag Nanocatalysts for Hydrogenation of 2-Hexyn-1-Ol

Zharmagambetova,

Talgatov,

Auyezkhanova

et al. 2023

Preprint

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A new one-pot technique for preparation of polysaccharide-based Pd- and Pd-Ag nanocatalysts by sequential supporting natural polymer (2-hydroxyethyl cellulose (HEC), chitosan (Chit), pectin (Pec)) and metals on zinc oxide was developed. The nanocatalysts based on polysaccharide were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), Brunauer–Emmett–Teller (BET), infrared spectroscopy (IRS), X-ray powder diffraction (XRD), X-ray photoelectron spectra (XPS) and elemental analysis methods. The catalyst characterization results indicated complete adsorption of polysaccharide and metal ions on zinc oxide, forming polymer-stabilized Pd nanoparticles of ~2 nm in size, evenly distributed on the support surface. The catalysts were studied in the hydrogenation of 2-hexyn-1-ol under mild conditions (0.1 MPa, 40 °C). The catalysts demonstrated nearly the same conversion of 2-hexyn-1-ol. The selectivity to cis-hexen-1-ol of the catalysts decreases in the following order: 0.5%Pd-Ag(3:1)HEC/ZnO>0.5%Pd-Ag(3:1)Pec/ZnO>0.5%Pd-Ag(3:1)Chit/ZnO. The optimum reaction temperature and catalyst loading for the Pd-Ag catalysts modified with HEC and Chit have been determined (40 °C, 0.05 g).

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Noble Metal Nanoparticles in Pectin Matrix. Preparation, Film Formation, Property Analysis, and Application in Electrocatalysis

Cited by 14 publications

References 80 publications

Pectin Microspheres: Synthesis Methods, Properties, and Their Multidisciplinary Applications

Pectin Microspheres: Synthesis Methods, Properties, and Their Multidisciplinary Applications

Nanobiocomposites of silver nanoparticles with polygalacturonic acid obtained by one-pot green synthesis: solid-state characterization

Polysaccharide-Stabilized Pd-Ag Nanocatalysts for Hydrogenation of 2-Hexyn-1-Ol

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