Biosynthesis of Ag/almond shell nanocomposite as a cost-effective and efficient catalyst for degradation of 4-nitrophenol and organic dyes

Bordbar, Maryam

doi:10.1039/c6ra24977a

Cited by 52 publications

(24 citation statements)

References 40 publications

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“…The TEM analysis confirms the increase in size of AgNPs with increasing wt% of AgNPs, which supports the UV-visible spectra results. Bordbar et al [60] prepared AgNPs/almond shell composites where the AgNPs size determined from XRD is similar to the results obtained from TEM analysis.…”

Section: Microscopic Investigationsupporting

confidence: 55%

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Mohanty

Swain

2018

Polymer Composites

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Silver nanoparticles (AgNPs) decorated polyethylmethacrylate (PEMA)/Graphene oxide (GO) nanocomposites were prepared through in situ polymerization ethylmethacrylate (EMA) in presence of GO and AgNPs. PEMA/GO/Ag nanocomposites were characterized by scanning electron microscope (SEM), transmission electron microscope (TEM), Fourier transform infrared (FTIR), X‐ray diffraction analysis (XRD), and UV‐visible spectroscopy. The thermal stability of PEMA was considerably enhanced due to incorporation of GO and AgNPs and around 32% residue was obtained for PEMA/GO/Ag. This was due to the compatibility of the AgNPs with PEMA and surface functional group of GO. The oxygen barrier property of the PEMA/GO was become double due to incorporation of AgNPs, which was due to the uniform dispersion of AgNPs. The prepared PEMA/GO/Ag composites had shown high resistance to acid and alkali. The antimicrobial properties of composites were measured by Kirby‐Bauer method and the positive antimicrobial properties along with other enhanced properties enable the material suitable for antimicrobial packaging. POLYM. COMPOS., 40:E1199–E1207, 2019. © 2018 Society of Plastics Engineers

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Section: Microscopic Investigationsupporting

confidence: 55%

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Mohanty

Swain

2018

Polymer Composites

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“…Almond shell was shown to have a sheet-like structure. In addition, a series of 1 µm pores were observed on the almond surface (see inserts) [34]. Most of the particles were characterized by a spherical shape, though some aggregates, as well as flat and long rod-like particles, were also observed.…”

Section: Morphological Analysismentioning

confidence: 96%

Effect of Almond Shell Waste on Physicochemical Properties of Polyester-Based Biocomposites

et al. 2020

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Polyester-based biocomposites containing INZEA F2® biopolymer and almond shell powder (ASP) at 10 and 25 wt % contents with and without two different compatibilizers, maleinized linseed oil and Joncryl ADR 4400®, were prepared by melt blending in an extruder, followed by injection molding. The effect of fine (125–250 m) and coarse (500–1000 m) milling sizes of ASP was also evaluated. An improvement in elastic modulus was observed with the addition of< both fine and coarse ASP at 25 wt %. The addition of maleinized linseed oil and Joncryl ADR 4400 produced some compatibilizing effect at low filler contents while biocomposites with a higher amount of ASP still presented some gaps at the interface by field emission scanning electron microscopy. Some decrease in thermal stability was shown which was related to the relatively low thermal stability and disintegration of the lignocellulosic filler. The added modifiers provided some enhanced thermal resistance to the final biocomposites. Thermal analysis by differential scanning calorimetry and thermogravimetric analysis suggested the presence of two different polyesters in the polymer matrix, with one of them showing full disintegration after 28 and 90 days for biocomposites containing 25 and 10 wt %, respectively, under composting conditions. The developed biocomposites have been shown to be potential polyester-based matrices for use as compostable materials at high filler contents.

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“…In 2017, Bordbar reported the successful design and preparation of Ag NPs immobilized on the waste almond shell surface (Ag NPs/almond shell) using Ruta graveolens sleeves extract and investigated its catalytic performance in the reduction of MB, Rhodamine B (RhB) and 4-NP at room temperature ( Figure 45). [184] In this procedure, they proposed the phenolic acid or flavonoids accountable for the synthesis of NPs. The TEM analysis of the Ag NPs/almond shell with an average diameter of approximately 5-15 nm is shown in Figure 46.…”

Section: P E R S O N a L A C C O U N T T H E C H E M I C A L R E C O R Dmentioning

confidence: 99%

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

Nasrollahzadeh

Yek

Motahharifar

et al. 2019

The Chemical Record

144

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Among different metallic nanoparticles, sliver nanoparticles (Ag NPs) are one of the most essential and fascinating nanomaterials. Importantly, among the metal based nanoparticles, Ag NPs play a key role in various fields such as biomedicine, biosensors, catalysis, pharmaceuticals, nanoscience and nanotechnology, particularly in nanomedicine. A main concern about the chemical synthesis of Ag NPs is the production of hazardous chemicals and toxic wastes. To overcome this problem, many research studies have been carried out on the green synthesis of Ag NPs using green sources such as plant extracts, microorganisms and some biopolymers without formation of hazardous wastes. Among green sources, plants could be remarkably valuable to exploring the biosynthesis of Ag NPs. In this review, the green synthesis of Ag‐based nanocatalysts such as Ag NPs, AgPd NPs, Au−Ag NPs, Ag/AgPd NPs, Ag/Cu NPs, Ag@AgCl NPs, Au−Ag@AgCl nanocomposite, Ag−Cr‐AC nanocomposite and Ag NPs immobilized on various supports such as Natrolite zeolite, bone, ZnO, seashell, hazelnut shell, almond shell, SnO2, perlite, ZrO2, TiO2, α‐Al2O3, CeO2, reduced graphene oxide (rGO), h‐Fe2O3@SiO2, and Fe3O4 using numerous plant extracts as reducing and stabilizing agents in the absence of hazardous surfactant and capping agents has been focused. This work describes the state of the art and future challenges in the biosynthesis of Ag‐based nanocatalysts. The fact about the application of living plants in metal nanoparticle (MNPs) industry is that it is a more economical and efficient biosynthesis biosynthetic procedure. In addition, the catalytic activities of the synthesized, Ag‐based recyclable nanocatalysts using various plant extracts in several chemical reactions such as oxidation, reduction, coupling, cycloaddition, cyanation, epoxidation, hydration, degradation and hydrogenation reactions have bben extensively discussed.

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Biosynthesis of Ag/almond shell nanocomposite as a cost-effective and efficient catalyst for degradation of 4-nitrophenol and organic dyes

Cited by 52 publications

References 40 publications

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Silver Nanoparticles Decorated Polyethylmethacrylate/Graphene Oxide Composite: As Packaging Material

Effect of Almond Shell Waste on Physicochemical Properties of Polyester-Based Biocomposites

Recent Developments in the Plant‐Mediated Green Synthesis of Ag‐Based Nanoparticles for Environmental and Catalytic Applications

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