Production of silver nanoparticles via green method using banana raja peel extract as a reducing agent (original) (raw)
Related papers
Journal of Physics: Conference Series
Banana is a typical fruit in Southeast Asia which has value in addition to being a food source. Agricultural and plantains processing industries generate enormous amount of waste in the form of banana peel. It is renewed that banana peel has several forms of biomass resources exist (such as starch or sugar crops, weeds, and oils plants, etc.) which can utilize for reducing agent in chemical synthesis. Therefore, this research aims to synthesize silver nanoparticles by a green synthesis using an extract derived from cultivated banana peel waste. To explore optional synthesis condition, characterization of synthesized silver nanoparticles (AgNPs) using UV-visible spectroscopy and Fourier transform infrared spectroscopy (FT-IR) were investigated. Besides, reducing sugar quantities of banana peel extract (BPE) was determined using DNS standard addition method. The results revealed that green synthesis of silver nanoparticles were accomplished using silver nitrate and BPE as the reductant. The optimized conditions for the AgNPs synthesis was a temperature of 60℃, 1.0 mM AgNO3, and a reactant ratio of 1: 2 (AgNO 3 to BPE). UV-Visible spectra demonstrated absorbance at 400 nm and 510 nm corresponding to AgNPs with the particle size in the range of 20-30 nm and 90-100 nm, respectively. Moreover, FTIR spectra revealed the role of functional group in BPE as a reducing agent of silver ions.
Banana peel extract mediated novel route for the synthesis of silver nanoparticles
Colloids and Surfaces a Physicochemical and Engineering Aspects, 2010
Bio-inspired silver nanoparticles were synthesized with the aid of a novel, non-toxic, eco-friendly biological material namely, banana peel extract (BPE). Boiled, crushed, acetone precipitated, air-dried peel powder was used for reducing silver nitrate. Silver nanoparticles were formed when the reaction conditions were altered with respect to pH, BPE content, concentration of silver nitrate and incubation temperature. The colorless reaction mixtures turned brown and displayed UV-visible spectra characteristic of silver nanoparticles. Scanning electron microscope (SEM) observations revealed the predominance of silver nanosized crystallites after short incubation periods. When the reaction mixtures were incubated for 15 days, some micro-aggregates were also observed. Energy dispersive spectrometer (EDS) studies and X-ray diffraction analysis confirmed the presence of silver nanoparticles. Fourier transform infra-red spectroscopy (FTIR) indicated the role of different functional groups (carboxyl, amine and hydroxyl) in the synthetic process. These silver nanoparticles displayed antimicrobial activity against fungal as well as bacterial cultures.
Banana leaves mediated bio-synthesis of silver nanoparticles
Indian Journal of Chemical Technology
Silver (Ag) ions are successfully reduced to stable silver nanoparticles (AgNPs) using banana leaves. Conversion of Ag ions to AgNPs has been confirmed by UV-VIS analysis. The result of change on independent variables, i.e. temperature and strength of reducing agent on absorbance of solution and optimization of parameters has been done using response surface methodology (RSM) as per central composite design (CCD). The type of chemical group present on the nanoparticles is studied using fourier-transform infrared spectroscopy (FT-IR). Estimation of the size of particles has been done using transmission electron microscopy (TEM) and nanoparticle size analyzer. The crystallinity of the nanoparticles formed has been confirmed using XRD. Energy dispersive X-ray analysis (EDX) data is used to confirm the nanometal present.
A REVIEW ON GREEN SYNTHESIS OF SILVER NANOPARTICLES USING FRUITS EXTRACT
Silver is nontoxic, safe inorganic agent used for management of wounds and ulcer. It has wide range of application in form of nanoparticles. Synthesis of silver nanoparticles through cost effective and environmental friendly method is of great concern. This review focuses on green synthesis of silver nanoparticles from fruits. A detailed study of synthesis of silver nanoparticles from various fruit extracts was demonstrated. Synthesis was observed as a colour change of the mixture. The X-ray diffraction patterns, UV-visible spectrum, scanning electron microscope, transmission electron microscope, fourier transform infrared spectroscopy were used for characterization of Silver nanoparticles. Antibacterial activitiy of Silver nanoparticles was observed against Gram-positive and Gram-negative bacteria. Various informations on synthesis, characterization techniques, properties and application of Silver nanoparticles are summarised and critically discussed in this review.
Synthesis of Silver Nanoparticles from Plant and Fruit Extracts- Summary on Research and Studies
Nanoparticles can be synthesized by various methods such as gas condensation, attrition, chemical precipitation, pyrolysis and hydrothermal synthesis. These nanomaterials find application in paint and pigment industry, electrical equipments and chemical processing industries. The enhancement of heat transfer coefficient by nanofluids is also widely discussed and investigated research area. Carbon nanotubes are used in antenas. They also find application in selective removal of some pollutants by adsorption. The high surface to volume ratio makes them highly catalytic and reactive. Synthesis of the nanoparticles can be carried out by various physical, physic chemical and biological methods. Current review summarizes research and studies on synthesis of silver nanoparticles from plant extracts. Silver nanoparticles are finding importance because of wide range of applications due to unique optical, electrical, and thermal properties. High electrical conductivity, stability, and low sintering temperatures are some important features of nanoparticles.
A REVIEW ON GREEN SYNTHESIS OF SILVER NANOPARTICLE USING FRUITS EXTRACT
world Journal of Pharmacy and Pharmaceutical Sciences , 2017
Silver is nontoxic, safe inorganic agent and used for management of wounds and ulcer. They have wide range of application in form of nanoparticles(NPs). Synthesis of silver nanoparticle (AgNPs) through cost effective and environmental friendly methods is of great concern. This review focuses on green synthesis of silver nano-particles from fruits. A detailed study of synthesis of silver nanoparticles from various fruits extracts was demonstrated. Synthesis was observed as a color change of the mixture. The X-ray diffraction patterns, UV-Vis spectrum, Scanning Electron Microscope, Transmission Electron Microscope, Fourier Transform Infrared Spectroscopy, were used for characterization of AgNPs. Antibacterial activitiy of AgNPs was also observed against Gram-positive and Gram-negative bacteria. Various information's of AgNPs synthesis, characterization techniques, properties and their application are summarised and critically discussed in this review.
Biological and green synthesis of silver nanoparticles∗
2016
In this work, the synthesis of stable silver nanoparticles by the bioreduction method was investigated. Aqueous extracts of the manna of hedysarum plant and the soap-root (Acanthe phylum bracteatum) plant were used as reducing and stabilizing agents, respectively. UV-Vis absorption spectroscopy was used to monitor the quantitative formation of silver nanoparticles. The characteristics of the obtained silver nanoparticles were studied using X-ray diffraction analysis (XRD), energy-dispersive spectroscopy (EDX), and scanning electron microscopy (SEM). The EDX spectrum of the solution containing silver nanoparticles confirmed the presence of an elemental silver signal without any peaks of impurities. The average diameter of the prepared nanoparticles in solution was about 29-68 nm. Key Words: Silver nanoparticles, bioreduction, manna of hedysarum, soap-root
Zenodo (CERN European Organization for Nuclear Research), 2020
Silver nanoparticles (AgNPs) are gaining attention because of its wide application in medical science as antimicrobial and antibacterial properties. A conventional method for synthesis of AgNPs consumes hazardous chemicals and during production of NPs harmful by-products may also form. Proposed review suggests "greener technology" for synthesis of silver nanoparticles with the help of easily available plants. Aqueous extract of leaf or roots of Impatiens balsamina, Lantana camara, Eriobotrya japonica, Berberis vulgaris, Azadirachta indica, Psidium guajava, Moringa oleifera and Catharanthus roseus and other plant extracts are used as reducing agents to convert Ag + into Ag 0. Light or faint color of plant extract after addition of AgNO 3 turns to brown or deep brown in color, indicates the formation of AgNPs. Fourier Transform Infra Red Spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Tunneling Electron Microscopy (TEM) and Dynamic Light Scattering Spectroscopy (DLSS) are techniques employed for characterization and morphological analysis of synthesized silver nanoparticles. Antibacterial, antifungal and antiparacitic applications of synthesized AgNPs have been also discussed. It is concluded that AgNPs synthesized by green way has great potency towards both Gram-negative and Gram-positive bacteria. Moreover, green synthesis of silver nanoparticles is a nonhazardous, eco-friendly, economic and safe technique and will envisaged better option for synthesis of AgNPs.
Green synthesis of silver nanoparticles using Citrus Unshiu peel extract
2016
In this work, we describe a cost effective and envi ro ment friendly technique for green synthesis of silver nanoparticles from 1mM AgNO 3 solution through the extract simple and cheap rout e sing peel extract of Citrus Unshiuas reducing and capping agent. Formation of nanoparticles were characterized using UV– Vis spectrophotometer, Energy Dispersive X-ray (EDX), S canning Electron Microscopic (SEM), and FT-IR spectroscopy. SEM analysis showed the silver nanoparticles ranges from 40.18 to 48.73 nm.
Biosynthesis of silver nanoparticles from biowaste pomegranate peels
International Journal of Nanoparticles, 2012
We present a simple and eco-friendly biosynthesis of silver nanoparticles using Pomegranate peel extract as the reducing agent. The extract was challenged with AgNO 3 solution for the production of silver nanoparticles (AgNPs). The reaction process was simple for the formation of highly stable silver nanoparticles at room temperature by using the biowaste of the fruit. The morphology and crystalline phase of the NPs was determined from UV-Vis spectroscopy, transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray diffraction (XRD) spectra and Fourier-Transform IR spectroscopy (FTIR). TEM studies showed that the silver nanoparticles obtained were of sizes 5 ± 1.5 nm. An effort has also been made to understand the possible involved mechanism for the biosynthesis of AgNPs. Presumably biosynthetic products or reduced cofactors play an important role in the reduction of respective salts to nanoparticles.