Beet juice utilization: Expeditious green synthesis of noble metal nanoparticles (Ag, Au, Pt, and Pd) using microwaves

Kou, Jiahui; Varma, Rajender S.

doi:10.1039/c2ra21908e

Cited by 101 publications

(67 citation statements)

References 18 publications

(24 reference statements)

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“…Another means of green synthesis, a rags to riches story, he indicated, is use of red grape pomace (waste material from the wine‐making process), with water, or microwaves, to generate nanoparticles in less than a minute (Baruwati and Varma ). Yet another process could use agricultural residues, such as beet juice, which has carbon, and which can produce carbon‐supported nanoparticles that can be reused several times (Kou and Varma ). This process can be used for green fabrication of plasmonic silver chloride/silver nanoparticles in an unusual top‐down hydrothermal synthesis (Kou and Varma ), he said.…”

Section: “Greener” Biomimetic Synthesis Of Nanomaterials Using Antioxmentioning

confidence: 99%

2013 IFT International Food Nanoscience Conference: Proceedings

Newsome

2014

Comp Rev Food Sci Food Safe

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The Institute of Food Technologists convened its 6th Intl. Food Nanoscience Conference in Chicago July 12 to 13, 2013. The objectives were to: (1) serve as a unique forum for exchange of insights into research developments, technology trends and applications, and risk and safety assessments; and (2) facilitate dialogue examining potential policy implications, social issues, consumer perceptions, and risk communication. An inaugural student poster competition was held to engage students who are actively involved in nanoscience-related research. John DiLoreto presented the first of 2 keynote presentations, providing an overarching big picture of the current utility of nanotechnology in multiple industry sectors. Frans Kampers and Rickey Yada presented the 2nd keynote-a global perspective of applications for the food system and information on research and other trends. Shaun Clancy addressed activities and perspectives outside the United States. Others addressed ultraviolet light as a sustainable means for improving safety and quality of liquid dairy products (Gail Barnes), the sustainable synthesis of nanomaterials (Rajender Varma), safety evaluation of nanomaterials (Michael Adams), developments relating to safety assessment of engineered nanomaterials and the NanoCharacter initiative (Richard Canady), the NanoRelease project (Richard Canady, Steve Roberts, Rickey Yada, Susann Bellmann, and Timothy Duncan), application of a gastrointestinal model for studying the behavior of nanosized layered double hydroxides (Susann Bellmann), capability of nanodelivery systems to improve bioavailability of bioactives (Lacey Simon), potential benefits of applications of nanoscience in food contact materials (Timothy Duncan), food safety implications of nanoscience (Frans Kampers), and consumer perceptions of food nanoscience (Mitchell Cheeseman).

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Section: “Greener” Biomimetic Synthesis Of Nanomaterials Using Antioxmentioning

confidence: 99%

2013 IFT International Food Nanoscience Conference: Proceedings

Newsome

2014

Comp Rev Food Sci Food Safe

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“…Between them, plant based techniques are cheaper, safer, and easier to employ as there is neither the risk of microbial contaminations nor the need to maintain cell cultures as in microbial based synthesis (Gan et al 2012). Furthermore, the plants which can capture almost 75% of the light energy from the sun and convert it into chemical energy have more advantages as sustainable and renewable resources than microbes that need expensive methodologies for production (Kou and Varma 2012). But several of the plant based methods reported earlier employ plant produce which are perhaps more gainfully used as food (Dubey et al 2013) or medicinals (Yang et al 2010).…”

Section: Introductionmentioning

confidence: 98%

Low-cost, environment-friendly synthesis of palladium nanoparticles by utilizing a terrestrial weedAntigonon leptopus

Ganaie

Abbasi

2015

Particulate Science and Technology

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Use of aqueous extracts of leaves, stem and roots of the obnoxious weed coral vine (Antigonon leptopus) was explored in the biomimetic extracellular synthesis of palladium nanoparticles Downloaded by [New York University] at 13:11 03 August 2015 2 (PdNPs). Extracts of all the three basic components of the plant-leaves, stem and root serves as a reducing as well as stabilizing agent. The progress of the synthesis, which occurred at 95C and commenced within 5 min of mixing the A. leptopus extracts and Pd (II) solutions, was tracked using UV-visible spectrophotometry. The synthesised PdNPs were characterised with electron microscopy (SEM, TEM), energy dispersive X-ray spectroscopy (EDAX), fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). The electron micrographs of the synthesised PdNPs revealed the presence of spherical particles of sizes ranging from 5 to 70 nm.The presence of Pd atoms was confirmed from the EDAX and X-Ray diffraction studies. The FT-IR spectral study indicated that the polysaccharides and proteins in the plant extract could have been responsible for the reduction of Pd ions to PdNPs and the latter's stabilization.

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“…Instead of chemical reductants, lots of species from nature can be also utilized as a reducing agent for metal synthesis. Extracts from some plants, vegetables, and fruits contain reducing compounds including vitamins, amino acids, and polyphenols, so they are able to reduce metal precursors into corresponding metals in the absence of additional chemicals . For instance, Kulkarni et al.…”

Section: Introductionmentioning

confidence: 99%

“…reported the additive‐free synthesis of Ag@AgCl nanomaterials using sugar cane juice as the reducing agent and halide source . Kou and Varma verified that beet juice could reduce several noble metal precursors into metallic particles . Also, the hydroxyl and amino groups in extracts can act as capping agents to control the growth of particles .…”

Section: Introductionmentioning

confidence: 99%

From Moldy Orange Waste to Natural Reductant and Catalyst Support: Active Palladium/Biomass‐Derived Carbonaceous Hybrids for Promoted Methanol Electro‐Oxidation

Niu

et al. 2017

ChemElectroChem

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Facile, green, and low-cost synthesis of advanced electrocatalysts is widely considered an urgent issue and a current challenge for clean energy conversion. Here, we report the green fabrication of a new Pd/C(OJ) hybrid, using orange juice (OJ) simultaneously as a natural reductant and a support precursor, for the methanol oxidation reaction (MOR) in alkaline media. The juice extracted from discarded moldy oranges is capable of reducing the [PdCl 4 ] 2À species into metallic Pd through a simple hydrothermal reaction, and then becomes the nitrogen-doped carbonaceous support after pyrolysis for active catalyst loading. In the synthesized Pd/C(OJ) hybrid, Pd nanoparticles with a mean size of 7.3 nm are highly dispersed throughout the support, providing a larger electrochemically active surface area than commercial Pd/C. As a result, the Pd/C (OJ) electrocatalyst exhibits 1.78 times the mass activity of the latter for the MOR. The preferable performance durability of Pd/ C(OJ) is also verified by using cyclic voltammetry and simulative startupÀshutdown measurements.

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Beet juice utilization: Expeditious green synthesis of noble metal nanoparticles (Ag, Au, Pt, and Pd) using microwaves

Cited by 101 publications

References 18 publications

2013 IFT International Food Nanoscience Conference: Proceedings

2013 IFT International Food Nanoscience Conference: Proceedings

Low-cost, environment-friendly synthesis of palladium nanoparticles by utilizing a terrestrial weedAntigonon leptopus

From Moldy Orange Waste to Natural Reductant and Catalyst Support: Active Palladium/Biomass‐Derived Carbonaceous Hybrids for Promoted Methanol Electro‐Oxidation

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