In situ syntheses of silver nanoparticles inside silver citrate nanorods via catalytic nanoconfinement effect

Lim, Jong Kuk; Liu, Tianhao; Jeong, Jisu; Shin, Haeun; Jang, Heung Ju; Cho, Sung‐Pyo; Park, Jin‐Seong

doi:10.1016/j.colsurfa.2020.125343

Cited by 8 publications

(5 citation statements)

References 41 publications

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“…As a result, the H atom has a high degree of activity and the propensity to lose electrons. Under specific circumstances, a redox reaction between citrate and Ag + may be detected, resulting in acetone-1,3-dicarboxylic acid, CO 2 , and Ag NPs ( Figure 1 b [ 22 ]. The N atoms on the amino groups of PEI molecules possess lone-pair electrons and exhibit a high affinity for Ag + complexation.…”

Section: Resultsmentioning

confidence: 99%

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In Situ Synthesis of Silver Nanoparticles on Flame-Retardant Cotton Textiles Treated with Biological Phytic Acid and Antibacterial Activity

Zhou

Chen

et al. 2022

Materials

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Fabrics were flame-retardant finished using phytic acid, a cost-effective, ecologically acceptable, and easily available flame-retardant finishing chemical. Then, on the surface of the completed fabric, silver nanoparticles (Ag NPs) were grown in situ to minimize Ag NPs aggregation and heterogeneous post-finishing and to increase washing durability. Thus, flame-retardant and antibacterial qualities were added to textiles. The as-prepared textiles were evaluated for their combustion performance, thermal performance, and antibacterial capabilities. At the same time, their microstructures were studied using X-ray diffractometry (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS). The findings indicated that flame-retardant textiles had an excellent launderability (limiting oxygen index = 31% after 20 washing cycles). Meanwhile, Ag NPs-loaded flame-retardant textiles demonstrated self-extinguishing properties, with a limiting oxygen index (LOI) of 27%. Bacteriostatic widths of flame-retardant antibacterial textiles against Escherichia coli and Staphylococcus aureus were 5.28 and 4.32 mm, respectively, indicating that Ag NPs-loaded flame-retardant fabrics have certain flame-retardant and antibacterial capabilities. SEM and TEM analysis indicated that nanoparticles were uniformly dispersed over Ag NPs-loaded flame-retardant textiles and were around 20 nm in size. When compared to flame-retardant textiles, Ag NPs-loaded flame-retardant fabrics showed varied binding energy of P and N on the surface and Ag ion emergence. Thermogravimetric analysis at various heating rates revealed that the main pyrolysis temperature range of flame-retardant fabrics decreased, while the main pyrolysis temperature range of Ag NPs-loaded flame-retardant fabrics increased; the heating rate influenced the pyrolysis range but not the fabric mass loss. In situ reduction synthesis of Ag NPs-loaded flame-retardant textiles may successfully reduce agglomeration and heterogeneous dispersion of nano-materials during post-finishing.

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Section: Resultsmentioning

confidence: 99%

“…According to the references [ 22 ] and improvements are as follows, for 1 h, flame retardant textiles were submerged in a 0.1 mol/L silver nitrate solution at room temperature (bath ratio of 1:30). The textiles were then immersed in a 20 g/L sodium citrate solution and treated for 1 h at 90 °C.…”

Section: Methodsmentioning

confidence: 99%

In Situ Synthesis of Silver Nanoparticles on Flame-Retardant Cotton Textiles Treated with Biological Phytic Acid and Antibacterial Activity

Zhou

Chen

et al. 2022

Materials

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“…Los principales métodos para la producción de nanopartículas son enfoques químicos y físicos que a menudo son costosos y potencialmente perjudiciales para el ambiente (38) algunas rutas han sido investigadas por reducción de hidruros y citratos de sodio, incluso en medio de radiación de microondas y fotoreducción. (29) En esta investigación se da énfasis a la síntesis de nanopartículas con extractos de plantas que es un método alternativo, eficiente, económico y seguro para el ambiente, además origina nanopartículas con propiedades determinadas.…”

Section: Discussionunclassified

Obtención de nanopartículas de plata soportadas en membrana de cabuya (Furcraea andina) y su acción antimicrobiana frente a Staphylococcus aureus.

Logroño Veloz,

Asubadin Espin,

Espín Logroño

et al. 2023

Cienc. Serv. Salud Nutr.

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Introducción. El progreso de la nanotecnología en los últimos años incluye las ciencias de la salud y la aplicación de la química verde. Objetivo. Desarrollar una membrana de Furcraea andina, cubierta con nanopartículas de plata usando como agente reductor cáscara de Citrus reticulata y analizar la actividad antimicrobiana sobre Staphylococcus aureus. Metodología. Se efectuó la síntesis in situ por método de química húmeda usando como agente reductor extractos de cáscara de mandarina variedad común y King y se evaluó los niveles de concentración, temperatura y tiempos de inmersión de las fibras de cabuya. Resultados. Los coloides se caracterizaron por espectroscopia UV- visible proporcionando un rango promedio de longitud de onda entre 430 a 450 nm. La concentración óptima de reactivo precursor fue de 0.0025 M Ag NO3 y como agente reductor 5% de extracto acuoso de cáscara de mandarina variedad común y 3% de variedad King. La caracterización de la superficie se efectúo mediante microscopia SEM, EDX y FT-IR. Conclusión. El proceso permitió obtener un material con nanopartículas de plata que exhiben actividad antimicrobiana con mediana sensibilidad frente a Staphylococcus aureus.

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“…IR spectroscopy is often employed to monitor the occupation of the pores in porous materials, such as metal-organic frameworks (MOF), [167][168][169][170] zeolites, [171][172][173][174] porous carbons 166,[175][176][177] etc. 178 IR spectroscopy can confirm the successful and controllable preparation of C 60 encapsulated inside the pores of zeoliticimidazolate framework 8 (ZIF-8) by solvent-free mechanochemical processes. 170 Having large cages and narrow cage-apertures, this MOF cannot accept rigid C 60 molecules, so the author's approach was to build the cage around the guest molecule.…”

Section: Nanodimensional Materialsmentioning

confidence: 96%

Infrared spectroscopic monitoring of solid-state processes

Biliškov

2022

Phys. Chem. Chem. Phys.

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In situ syntheses of silver nanoparticles inside silver citrate nanorods via catalytic nanoconfinement effect

Cited by 8 publications

References 41 publications

In Situ Synthesis of Silver Nanoparticles on Flame-Retardant Cotton Textiles Treated with Biological Phytic Acid and Antibacterial Activity

In Situ Synthesis of Silver Nanoparticles on Flame-Retardant Cotton Textiles Treated with Biological Phytic Acid and Antibacterial Activity

Obtención de nanopartículas de plata soportadas en membrana de cabuya (Furcraea andina) y su acción antimicrobiana frente a Staphylococcus aureus.

Infrared spectroscopic monitoring of solid-state processes

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