In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

Solomon, Moses M.; Umoren, Savıour A.

doi:10.1016/j.jcis.2015.09.057

Cited by 154 publications

(72 citation statements)

References 51 publications

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Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 95%

“…By allowing the yellow color solution to stand at room temperature under constant stirring for 24 h, the solution was decolorized from yellowish to dark-brown color ( Figure 2). The change in color signaled the formation of silver nanoparticles [30]. An addition of sodium chloride solution to a small portion of the dark-brown nanofluid failed to form white precipitate expected from the reaction of sodium chloride and silver ions.…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

“…An addition of sodium chloride solution to a small portion of the dark-brown nanofluid failed to form white precipitate expected from the reaction of sodium chloride and silver ions. This indicated that the Ag + ions was converted completely to Ag 0 [30]. Figure 3 presents the attenuated total reflectance-infrared (ATR-IR) spectra of (a) chitosan, DPLE leaves extract, and DPLE-mediated composite and (b) chitosan, HEL leaves extract, and HELmediated composite.…”

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

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Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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Chitosan/silver nanofluids were prepared using Phoenix dactylifera (DPLE) or Rumex vesicarius (HEL) extracts as the reducing agent, characterized using Fourier-transform infrared spectroscopy (FTIR), ultraviolet–visible (UV-vis), X-ray diffraction (XRD), and transmission electron microscope (TEM). The antimicrobial effect of the nanofluids against Gram positive, Bacillus licheniformis, Staphylococcus haemolyticus, Bacillus cereus, and Micrococcus luteus, and Gram-negative Pseudomonas aeruginosa, Pseudomonas citronellolis, and Escherichia coli bacteria has been studied. The nanoparticles were polydispersed in the chitosan matrix and are highly stable. The zeta potential of the silver nanoparticles in DPLE- and HEL-mediated composites is +46 mV and +56 mV, respectively. The FTIR results reveal that the free carboxylate groups in the plant biomaterial took part in stabilization process. HEL is a stronger reducing agent than DPLE and nanoparticles generated with HEL are smaller (8.0–36 nm) than those produced with DPLE (10–43 nm). DPLE- and HEL-mediated composites effectively inhibit the growth of the studied bacteria but HEL-mediated composite exhibited higher effect. The higher antimicrobial activity of HEL-mediated composite is linked to the smaller nanoparticles. The foregoing results indicate that HEL extract can be used in the green production of potential antimicrobial chitosan/silver nanofluids for biomedical and packaging applications.

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Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 95%

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

Section: Physical Appearance Of Synthesized Agnps/chitosan Nanofluidsmentioning

confidence: 99%

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Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

et al. 2020

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“…Previous studies have reported that introducing nanoparticles into polymers can effectively improve the inhibition efficiency. The most commonly used nanoparticles are silver nanoparticles . Silver is a noble metal, and the use of silver as a source of nanoparticles may increase the price of inhibitors.…”

Section: Introductionmentioning

confidence: 99%

In situ synthesis of one eco‐friendly polyacrylic acid/zinc colloidal particles doped polyacrylic acid as an efficient corrosion inhibitor for iron

Gao

2019

Materials & Corrosion

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Commonly used organic inhibitors face one common problem: Environmental friendliness and excellent inhibition efficiency cannot be simultaneously realized. Here, we report one facile method that can be used for the in situ synthesis of one stable polyacrylic acid/zinc colloidal particles (PZCPs) doped polyacrylic acid (PAA) through the electrostatic interaction between polyacrylic acid and Zn 2+ as a corrosion inhibitor of iron. The results of microstructure characterization indicated that the diameter of the colloidal particles was around 150 nm. The various electrochemical experimental results indicated that PZCPs doped PAA exhibited excellent inhibition efficiency, and the maximum inhibition efficiency was 82.3%. The PZCPs doped PAA exhibited higher inhibition efficiency than PAA because the adsorption ability of PZCPs doped PAA was stronger than that of PAA and the formed PZCPs doped PAA inhibition layer on the iron surface was thicker and denser than the PAA inhibition layer. Given the eco‐friendly, facile synthesis, excellent inhibition efficiency, and low price, this strategy to synthesize effective inhibitors will find widespread application in the anti‐corrosion industry.

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“…These monodispersed AgNPs have a great effect on their physical and chemical properties. All the methods have concentrated on preparing particles of very small size and definite shape which focuses for different applications [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Psidium Guajava: A Novel Plant in the Synthesis of Silver Nanoparticles for Biomedical Applications.

Sharmila¹,

Ranjith²,

B³

2018

Asian J Pharm Clin Res

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Objective: Synthesis of silver nanoparticles (AgNPs) using a simple, cost-effective and environmentally friendly green route approach and to study the antibacterial activity of AgNPs against human pathogens. Methods:Green route approach is used to synthesize AgNPs using Psidium guajava leaf extract. Fourier transform infrared (FTIR) was used to identify the presence of the functional group. X-ray diffraction (XRD) was used to analyze the structure of prepared AgNPs. Energy dispersive X-ray was used to the characteristic to the composition of the prepared nanoparticles. Size and morphology of the prepared AgNPs were investigated using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) analysis. Antibacterials efficiency of prepared AgNPs was tested against Escherichia coli and Staphylococcus aureus by well diffusion methods.Results: FTIR study shows the presence of different functional groups present in the leaves mediated AgNPs. The XRD studies yield diffraction peaks corresponding to face-centered cubic structure of Ag crystals. Spherical shaped AgNPs with a particle size of about ~55 nm were evidenced using FESEM and TEM analysis. Energy dispersive spectrum of the synthesized AgNPs confirms the presence of silver in the prepared nanoparticles. From UV-VIS analysis it is shown that the absorption band was red-shifted from 430 nm to 456 nm. The prepared AgNPs shows good antibacterial activity against E. coli and S. aureus.Conclusions: P. guajava leaf extract is a potential reducing agent to synthesize AgNPs. The green synthesis approach provides cost-effective and ecofriendly nanoparticles, which could be used in biomedical applications.

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In-situ preparation, characterization and anticorrosion property of polypropylene glycol/silver nanoparticles composite for mild steel corrosion in acid solution

Cited by 154 publications

References 51 publications

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

Preparation of Silver/Chitosan Nanofluids Using Selected Plant Extracts: Characterization and Antimicrobial Studies against Gram-Positive and Gram-Negative Bacteria

In situ synthesis of one eco‐friendly polyacrylic acid/zinc colloidal particles doped polyacrylic acid as an efficient corrosion inhibitor for iron

Psidium Guajava: A Novel Plant in the Synthesis of Silver Nanoparticles for Biomedical Applications.

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