Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

Ismail, Raid A.; Almashhadani, Nahida J.; Sadik, Rand H.

doi:10.1007/s13204-017-0550-6

Cited by 50 publications

(17 citation statements)

References 27 publications

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“…Interestingly, 1633 cm -1 and 3440 cm -1 wavenumbers were not detected during the analysis because of the elimination of chemical compounds after treatment using nitrogen plasma. Wavenumbers of 500-1600 cm -1 confirm C-H and C-C bonds (Singh et al, 2015;Ismail et al, 2017). In this study, peaks in the range 500-1600 cm -1 were detected in the final residue, which were C-H bonds and C-C bonds, confirming the transformation of carbon to H 2 and CH 4 .…”

Section: Characterization Analysis Of Psfsupporting

confidence: 72%

Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor

Sanito

Chen

You

et al. 2020

Aerosol Air Qual. Res.

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Polystyrene foam (PSF), which is widely used in oyster farming in Taiwan, generates approximately 120,000-200,000 pieces of floating waste annually. The issues related to processing this waste, however, include the financial cost, incinerator clogs, human exposure to carcinogenic and non-biodegradable components, and potential debris, which threatens the seashore. In this study, we obtained methane (CH 4) and hydrogen (H 2), two crucial gases in power generation, by treating PSF waste with an atmospheric-pressure microwave plasma reactor. Substituting argon with nitrogen as the carrier gas and increasing the microwave power (1200 W) produced a higher concentration of H 2 (4739 ppm) but a lower one of CH 4 (less than 300 ppm). Treating a larger quantity of waste (0.2 g) resulted in CH 4 and H 2 levels of 19,657 ppm and 440 ppm, respectively. SEM-EDX and XRD testing confirmed the transformation of the PSF structure and a reduction in carbon (C) content in the final residue. This research demonstrates how solid waste can be recycled into valuable gases by applying plasma technology.

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Section: Characterization Analysis Of Psfsupporting

confidence: 72%

Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor

Sanito

Chen

You

et al. 2020

Aerosol Air Qual. Res.

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“…Over the past decades, various applications of the SPR of Ag NPs have been revealed, particularly in biosensing, surface-enhanced Raman scattering, and plasmon circuitry [ 36 ]. Ismail et al [ 37 ], revealed that polymer composites incorporated with Ag nanoparticles are crucial in fabricating high photosensitivity and cost-effective PS/Si heterojunctionphotodetectors. According to the recent review ofJeong et al [ 38 ], silver NPs are promising plasmonic materials for application in organic optoelectronic devices including organic light-emitting diodes (OLEDs) and polymer solar cells (PSCs).…”

Section: Resultsmentioning

confidence: 99%

Polymer Blending as a Novel Approach for Tuning the SPR Peaks of Silver Nanoparticles

et al. 2017

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In the present work, a novel method is exhibited for tuning the surface plasmon resonance (SPR) peaks of silver nanoparticles based on chitosan-Poly(vinyl alcohol) blend polymer nanocomposites. Silver nanoparticles were synthesized by in situ method through the chitosan host polymer. The absence of crystalline peaks of PVA in the blend system indicated the occurrence of miscibility between CS and PVA polymers. The UV–vis spectra of CS:AgNt samples shows SPR bands with weak intensity. Obvious tuning in SPR peaks of silver nanoparticles occurred when different amounts of PVA polymer incorporated to the CS:AgNt system. The appearance of distinguishable crystalline peaks of Ag° nanoparticles at 2θ = 38.6° and 2θ = 44.2° in the blend system reveals the role of polymer blending in the enhancement of SPR peaks of silver nanoparticles. Silver nanoparticles synthesized in this work with enhanced SPR peaks are important in various applications and areas such as optoelectronic devices. The TEM images show dispersed silver nanoparticles. The dielectric constant of PVA is higher than that of chitosan. The result of dielectric constant study validates the Mie model which reveals the fact that the dielectric constant of the surrounding material has a great effect on the SPR peak intensity of nanoparticles.

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“…While the application of noble metal nanostructures in plasmonic devices has been well established, the performance of noble metals supported over semiconductors and dielectric matrices has been exploited successfully in catalytic and photocatalytic reactions, 3,6,7 alongside other optoelectronic applications. 8 However, the use of bare noble metal nanostructures in catalysis or photocatalysis has been limited. 9,10 While the most promising utilizations of bare noble metal nanostructures have been the bio-sensing based on surface enhanced Raman scattering (SERS) or electrochemical response 11,12 and bioremediation, 13 they have also been utilized, although not so frequent, for catalytic degradation/reduction of organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

Size controlled green synthesis of gold nanoparticles using Coffea arabica seed extract and their catalytic performance in 4-nitrophenol reduction

et al. 2018

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Well crystalline gold nanoparticles (AuNPs) of different sizes were fabricated using sundried Coffea arabica seed (CAS) extract at room temperature by controlling the pH of the green extract. The size, shape and crystallinity of the nanoparticles have been studied using electron microscopy and X-ray diffraction. The presence of phenolic groups (revealed through FT-IR studies) from the CAS extract are responsible both for the reduction of Au ions and stabilization of the formed AuNPs. The efficiency of the CAS extract mediated green synthesis technique for the production of AuNPs has been compared to the conventional chemical Turkevich technique, which not only uses a toxic reductant such as NaBH 4 , but also operates around the boiling point of water. It has been observed that the CAS extract mediated synthesis process produces relatively bigger AuNPs at similar pH values of the reaction mixture in comparison to the AuNPs produced in the Turkevich process. Although the AuNPs synthesized using CAS extract are relatively larger and polydisperse in nature, their catalytic efficiencies for the degradation of an aromatic nitro compound (4-nitrophenol) are found to be comparable to the chemically fabricated AuNPs. Probable mechanisms associated with the formation of AuNPs and their size control in the CAS extract mediated green synthesis process have been discussed. Fig. 2 Typical SEM images of GAuNPs (left column) and CAuNPs (right column) synthesized at different pH values of the reaction mixture. Insets show histogram reflecting the size dispersion corresponding to each pH; average size of the NPs vs. number of particles. 24822 | RSC Adv., 2018, 8, 24819-24826 This journal is

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Preparation and properties of polystyrene incorporated with gold and silver nanoparticles for optoelectronic applications

Cited by 50 publications

References 27 publications

Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor

Hydrogen and Methane Production from Styrofoam Waste Using an Atmospheric-pressure Microwave Plasma Reactor

Polymer Blending as a Novel Approach for Tuning the SPR Peaks of Silver Nanoparticles

Size controlled green synthesis of gold nanoparticles using Coffea arabica seed extract and their catalytic performance in 4-nitrophenol reduction

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