Strategic Green Synthesis, Characterization and Catalytic Application to 4-Nitrophenol Reduction of Palladium Nanoparticles

Gopalakrishnan, R.; Loganathan, B.; Dinesh, S.; Raghu, Kozhiparambil Gopalan

doi:10.1007/s10876-017-1207-z

Cited by 29 publications

(11 citation statements)

References 39 publications

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“…The 4-nitrophenol reduction product, 4-aminophenol, has been applied in diverse fields as an intermediate for paracetamol, sulfur dyes, rubber antioxidants, preparation of black/white film developers, corrosion inhibitors, and precursors in antipyretic and analgesic drugs [ 113 , 114 ]. The simplest and most effective way to reduce 4-nitrophenol is to introduce NaBH 4 as a reductant and a metal catalyst such as Au NPs [ 115 ], Ag NPs [ 116 ], CuO NPs [ 117 ], and Pd NPs [ 118 ]. Metal NPs exhibit admirable catalytic potential because of the high rate of surface adsorption ability and high surface area to volume ratio.…”

Section: Environmental Remediation Applicationsmentioning

confidence: 99%

‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation

et al. 2018

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In materials science, “green” synthesis has gained extensive attention as a reliable, sustainable, and eco-friendly protocol for synthesizing a wide range of materials/nanomaterials including metal/metal oxides nanomaterials, hybrid materials, and bioinspired materials. As such, green synthesis is regarded as an important tool to reduce the destructive effects associated with the traditional methods of synthesis for nanoparticles commonly utilized in laboratory and industry. In this review, we summarized the fundamental processes and mechanisms of “green” synthesis approaches, especially for metal and metal oxide [e.g., gold (Au), silver (Ag), copper oxide (CuO), and zinc oxide (ZnO)] nanoparticles using natural extracts. Importantly, we explored the role of biological components, essential phytochemicals (e.g., flavonoids, alkaloids, terpenoids, amides, and aldehydes) as reducing agents and solvent systems. The stability/toxicity of nanoparticles and the associated surface engineering techniques for achieving biocompatibility are also discussed. Finally, we covered applications of such synthesized products to environmental remediation in terms of antimicrobial activity, catalytic activity, removal of pollutants dyes, and heavy metal ion sensing.

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Section: Environmental Remediation Applicationsmentioning

confidence: 99%

‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation

et al. 2018

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“…Despite this, the reduced product of 4-nitrophenol is used as a mediator in black/white film developers, rubber antioxidants, sulfur dyes, paracetamol, corrosion inhibition and act as precursors in analgesic and antipyretic drugs [ 90 , 91 ]. NaBH 4 is extensively used as a metal catalyst, and reductant for Cu 2 ONPs, AgNPs, AuNPs and PdNPs; it is claimed to be the most effective method to reduce 4-nitrophenol [ 92 , 93 , 94 , 95 ]. Methylene blue (MB) is a heterocyclic aromatic pollutant released from the dying industries [ 96 ].…”

Section: Catalytic Activity Of Fruit-derived Npsmentioning

confidence: 99%

Fruit Extract Mediated Green Synthesis of Metallic Nanoparticles: A New Avenue in Pomology Applications

Kumar

Bhardwaj

Dhanjal

et al. 2020

IJMS

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Fruit extracts have natural bioactive molecules that are known to possess significant therapeutic potential. Traditionally, metallic nanoparticles were synthesized via chemical methods, in which the chemical act as the reducing agent. Later, these traditional metallic nanoparticles emerged as the biological risk, which prompted researchers to explore an eco-friendly approach. There are different eco-friendly methods employed for synthesizing these metallic nanoparticles via the usage of microbes and plants, primarily via fruit extract. These explorations have paved the way for using fruit extracts for developing nanoparticles, as they eliminate the usage of reducing and stabilizing agents. Metallic nanoparticles have gained significant attention, and are used for diverse biological applications. The present review discusses the potential activities of phytochemicals, and it intends to summarize the different metallic nanoparticles synthesized using fruit extracts and their associated pharmacological activities like anti-cancerous, antimicrobial, antioxidant and catalytic efficiency.

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“…The 4-nitrophenol reduction product (i.e., 4-aminophenol)has been used as a mediator for paracetamol, sulfur dyes, rubber antioxidants, the making of black/white film developers, corrosion inhibitors, and precursors in antipyretic and analgesic drugs [112,113]. The use of NaBH 4 as a reductant and a metal catalyst for Au NPs, AgNPs, CuO NPs, and Pd NPs is the easiest and most effective approach to reduce 4-nitrophenol [114][115][116][117]. Methylene blue (MB), which is the member of the thiazine class of dyes, is another heterocyclic aromatic industrial pollutant [118].…”

Section: Catalytic Properties Of Flower-derived Npsmentioning

confidence: 99%

Flower-Based Green Synthesis of Metallic Nanoparticles: Applications beyond Fragrance

et al. 2020

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Green synthesis has gained wide attention as a sustainable, reliable, and eco-friendly approach to the synthesis of a variety of nanomaterials, including hybrid materials, metal/metal oxide nanoparticles, and bioinspired materials. Plant flowers contain diverse secondary compounds, including pigments, volatile substances contributing to fragrance, and other phenolics that have a profound ethnobotanical relevance, particularly in relation to the curing of diseases by 'Pushpa Ayurveda' or floral therapy. These compounds can be utilized as potent reducing agents for the synthesis of a variety of metal/metal oxide nanoparticles (NPs), such as gold, silver, copper, zinc, iron, and cadmium. Phytochemicals from flowers can act both as reducing and stabilizing agents, besides having a role as precursor molecules for the formation of NPs. Furthermore, the synthesis is mostly performed at ambient room temperatures and is eco-friendly, as no toxic derivatives are formed. The NPs obtained exhibit unique and diverse properties, which can be harnessed for a variety of applications in different fields. This review reports the use of a variety of flower extracts for the green synthesis of several types of metallic nanoparticles and their applications. This review shows that flower extract was mainly used to design gold and silver nanoparticles, while other metals and metal oxides were less explored in relation to this synthesis. Flower-derived silver nanoparticles show good antibacterial, antioxidant, and insecticidal activities and can be used in different applications.

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Strategic Green Synthesis, Characterization and Catalytic Application to 4-Nitrophenol Reduction of Palladium Nanoparticles

Cited by 29 publications

References 39 publications

‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation

‘Green’ synthesis of metals and their oxide nanoparticles: applications for environmental remediation

Fruit Extract Mediated Green Synthesis of Metallic Nanoparticles: A New Avenue in Pomology Applications

Flower-Based Green Synthesis of Metallic Nanoparticles: Applications beyond Fragrance

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