Nanocrystalline silver coatings on steel by electrodeposition from non-polluting aqueous baths and its antibacterial activity

Sayed, Manal A. El; Elazab, Nahla T.; Gassoumi, M.; Ibrahim, Magdy A. M.

doi:10.1016/j.jtice.2022.104212

Cited by 13 publications

(10 citation statements)

References 45 publications

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“…The ED of pure Cu from this bath (in the absence of AgNO 3 ) was carried out for comparison. In addition, our workgroup successfully prepared nanocrystalline silver coatings on SS using the same bath constituents (without CuSO 4 ) [38]. The bath composition of 0.0125 M AgNO 3 and 0.5 M CuSO 4 with the rest of the constituents in Table 1 was used as an optimum bath to produce the ncCuAg coatings and is denoted as bath I.…”

Section: Electrochemical Synthesis Of Nccuag Coatingsmentioning

confidence: 99%

“…The ED was carried out in a non-stirred environment at an ambient temperature. The stainless steel used and the process of its cleaning were described elsewhere [38]. The ncCuAg coatings were electroplated galvanostatically (at constant current density) for 10 min.…”

Section: Electrochemical Synthesis Of Nccuag Coatingsmentioning

confidence: 99%

“…Escherichia coli as a gram-negative enteric pathogen and Staphylococcus aureus as grampositive bacteria were isolated and identified from pathogenic samples using a standard laboratory protocol, cultured on suitable media, and purified as described by [38]. The two bacterial strains were grown for 24 h at 37 degrees Celsius in nutrient broth on a rotary shaker (180 rpm).…”

Section: Organisms Under Investigationmentioning

confidence: 99%

“…As a result, Ag + ions are consumed more quickly by the redox replacement process near the electrode, whereas the effects of the mass-transfer limit on Cu ions are less severe, allowing for a higher degree of Ag replacement by Cu on the electrode. When citric acid or other hydroxycarboxylic acids are used to dissolve AgNO 3 and CuSO 4 , the precipitation of silver citrate (Ag 3 C 6 H 5 O 7 ) and copper citrate (Cu 3 (C 6 H 5 O 7 ) 2 does not occur [38]. The following reaction can be used to explain this phenomenon for silver nitrate, copper sulphate, and citric acid:…”

Section: The Electrochemical Synthesis Of the Nccuag Coatingmentioning

confidence: 99%

“…higher degree of Ag replacement by Cu on the electrode. When citric acid or other hydroxycarboxylic acids are used to dissolve AgNO3 and CuSO4, the precipitation of silver citrate (Ag3C6H5O7) and copper citrate (Cu3(C6H5O7)2 does not occur [38]. The following reaction can be used to explain this phenomenon for silver nitrate, copper sulphate, and citric acid:…”

Section: Electrochemical Studiesmentioning

confidence: 99%

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Electrochemical Synthesis of Nanocrystalline CuAg Coatings on Stainless Steel from Cyanide-Free Electrolyte

et al. 2022

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Herein we demonstrate a novel plating bath, free from cyanide, to plate a highly adherent nanocrystalline copper-silver (ncCuAg) coating on a stainless-steel substrate and its application as an antimicrobial coating. The microstructures, such as the grain size, texture, microstrain, and the crystalline preferential orientation of CuAg deposits, are systematically investigated by X-ray diffraction analysis. The range of 13.4–16.6 nm was discovered to be the crystallite size determined from the X-ray peak broadening (Scherrer’s formula). Both HRTEM, FESEM-EDS, XPS, and mapping analysis revealed that the ncCuAg coatings are composed of both Ag and Cu atoms. Electrochemical processes occurring during CuAg co-deposition were investigated by using linear sweep voltammetry (LSV), cyclic voltammetry (CV), and anodic linear stripping voltammetry (ALSV). Additionally, the coatings made of ncCuAg produced by these baths work well as antibacterial agents against gram-positive (Staphylococcus) and gram-negative bacteria (Escherichia coli).

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Section: Electrochemical Synthesis Of Nccuag Coatingsmentioning

confidence: 99%

Section: Electrochemical Synthesis Of Nccuag Coatingsmentioning

confidence: 99%

Section: Organisms Under Investigationmentioning

confidence: 99%

Section: The Electrochemical Synthesis Of the Nccuag Coatingmentioning

confidence: 99%

Section: Electrochemical Studiesmentioning

confidence: 99%

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