Chemical Reduction as the Main Method for Obtaining Nanosilver

Pulit, Jolanta; Banach, Marcin; Kowalski, Zygmunt

doi:10.1166/jctn.2013.2691

Cited by 19 publications

(6 citation statements)

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“…The AgNPs in different sizes and shapes have been synthesized for several years by a series of various techniques, for example, physical, chemical, and biological ones [19]. Even though some physical and chemical methods have been successfully reported for producing the AgNPs in aqueous stable state in controlled sizes and shapes [20][21][22][23][24], many of them have required extreme synthetic conditions such as high temperature and pressure, which might be expensive and tedious for material costs. Moreover, the use and release of hazardous chemicals and solvents are potential risks for the environment and human health [25,26].…”

Section: Introductionmentioning

confidence: 99%

Novel Eco-Friendly Synthesis of Biosilver Nanoparticles as a Colorimetric Probe for Highly Selective Detection of Fe (III) Ions in Aqueous Solution

Trang

Tuan

Dinh

et al. 2021

Journal of Nanomaterials

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In this work, an eco-friendly approach for the synthesis of biogenic silver nanoparticles (bio-AgNPs) using botanical extracts in combination with an electrochemical process was carried out. We employed three types of plant extracts, including green tea leaf (GTE), grapefruit peel (GP), and mangosteen peel (MP) extracts to successfully synthesize the bio-AgNPs and optimized the experimental conditions aiming to get the highest synthetic yield. The formation of bio-AgNPs was monitored by UV-Vis spectroscopy via a surface plasmon resonance (SPR) band at about 420–430 nm. Transmission electron microscope (TEM) showed their spherical shape with the size range within 23–55 nm. While X-ray diffraction (XRD) analysis described in detail the crystalline structure of the bio-AgNPs with a face-centered cubic crystal lattice of metallic silver. The chemical bonding and elemental compositions of the bio-AgNPs were determined by Fourier Transform Infrared (FTIR) spectroscopy, in which organic compounds in the natural extracts not only acted as effective reductants but also capping agents for the fabricated bio-AgNPs. The prepared bio-AgNPs exhibited high stability and excellent dispersion for about four months. Based on the linear relationship between obtained SPR band intensity of bio-AgNP GTE in the presence of Fe (III) and concentration of Fe (III) ions, our bio-AgNP GTE can be used to develop a highly selective colorimetric sensor for the determination of Fe (III) ions within a linear range from 1 to 25 μM. According to that, the limit of detection (LOD) was recorded at approximately 0.532 μM, and the quantitative limit (LOQ) was calculated to be 1.77 μM. A detection mechanism was proposed through redox reactions between bio-AgNP GTE and Fe (III) ions. More interestingly, this method was successfully applied for the determination of Fe (III) ions in a lake water sample with percentage recovery of 107-150% and high reproducibility ( RSD = 1.49 % ).

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Section: Introductionmentioning

confidence: 99%

Novel Eco-Friendly Synthesis of Biosilver Nanoparticles as a Colorimetric Probe for Highly Selective Detection of Fe (III) Ions in Aqueous Solution

Trang

Tuan

Dinh

et al. 2021

Journal of Nanomaterials

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“…There are many known methods that are described in detail for the synthesis of nanosilver and nanogold. These include, among others: chemical reduction [ 4 , 5 ]. This can be replaced with a procedure that is in accordance with the principles of “clean technologies.” With the development of nanotechnology, ecological methods have become an alternative to conventional processes that are not always compatible with the principles of green chemistry and are therefore environmentally nonindifferent [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Preparation of Nanosilver and Nanogold Based on Dog Rose Aqueous Extract

Pulit

Banach

2014

Bioinorganic Chemistry and Applications

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This paper describes a process of obtaining nanosilver and nanogold based on chemical reduction using substances contained in the aqueous extract of dog rose (Rosa canina). The resulting products were subjected to spectrophotometric analysis (UV-Vis), and testing of the nanoparticles' size and suspension stability was carried out by measuring the electrokinetic potential, ζ, via dynamic light scattering (DLS). Solid samples were imaged by scanning electron microscopy (SEM). The obtained data were given to statistical analysis in order to illustrate the properties of the suspension depending on the values of the input parameters: metal salts concentration, pH of the reaction mixture, and process temperature. In the course of the work, samples of nanosilver and nanogold were obtained, which were stable for over two months and which had a monomodal particle size distribution.

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“…Antibacterial and photocatalytic degradation efficacy of silver nanoparticles biosynthesized using Cordia dichotoma leaf extract 1…”

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confidence: 99%

Antibacterial and photocatalytic degradation efficacy of silver nanoparticles biosynthesized using Cordia dichotoma leaf extract

Kumari

Thapa

Gupta

et al. 2016

Adv. Nat. Sci: Nanosci. Nanotechnol.

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The present study focuses on the biosynthesis of silver nanoparticles (AgNPs) along with its antibacterial and photocatalytic activity. The AgNPs were synthesized using Cordia dichotoma leaf extract and were characterized using UV-vis spectroscopy to determine the formation of AgNPs. FTIR was done to discern biomolecules responsible for reduction and capping of the synthesized nanoparticles. Further, DLS technique was performed to examine its hydrodynamic diameter, followed by SEM, TEM and XRD to determine its size, morphology and crystalline structure. Later, these AgNPs were studied for their potential role in antibacterial activity and photocatalytic degradation of azo dyes such as methylene blue and Congo red.

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Chemical Reduction as the Main Method for Obtaining Nanosilver

Cited by 19 publications

References 0 publications

Novel Eco-Friendly Synthesis of Biosilver Nanoparticles as a Colorimetric Probe for Highly Selective Detection of Fe (III) Ions in Aqueous Solution

Novel Eco-Friendly Synthesis of Biosilver Nanoparticles as a Colorimetric Probe for Highly Selective Detection of Fe (III) Ions in Aqueous Solution

Preparation of Nanosilver and Nanogold Based on Dog Rose Aqueous Extract

Antibacterial and photocatalytic degradation efficacy of silver nanoparticles biosynthesized using Cordia dichotoma leaf extract

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