One-pot synthesis of lignin-stabilised platinum and palladium nanoparticles and their catalytic behaviour in oxidation and reduction reactions

Coccia, Francesca; Tonucci, Lucia; Bosco, Domenico; Bressan, M.; d’Alessandro, Nicola

doi:10.1039/c2gc16524d

Cited by 202 publications

(133 citation statements)

References 42 publications

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“…Conversely, biosynthesis of MNPs is dependent on phytochemical composition of plant cells and gymnosperms are vascular plants as angiosperms; hence, research on biosynthesis of MNPs using gymnosperms is yet to be explored. Based on the mechanism of NPs formation, it was concluded that size, morphology, quantity of NPs are principally dependent on the plant type and its parts, pH of synthesis and bioavailability of metals [84][85][86][87][88].…”

Section: Gymnospermsmentioning

confidence: 99%

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Das

Pachapur

Lonappan

et al. 2017

Nanotechnol. Environ. Eng.

354

136

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The green synthesis (GS) of different metallic nanoparticles (MNPs) has re-evaluated plants, animals and microorganisms for their natural potential to reduce metallic ions into neutral atoms at no expense of toxic and hazardous chemicals. Contrary to chemically synthesized MNPs, GS offers advantages of enhanced biocompatibility and thus has better scope for biomedical applications. Plant, animals and microorganisms belonging to lower and higher taxonomic groups have been experimented for GS of MNPs, such as gold (Au), silver (Ag), copper oxide (CuO), zinc oxide (ZnO), iron (Fe 2 O 3 ), palladium (Pd), platinum (Pt), nickel oxide (NiO) and magnesium oxide (MgO). Among the different plant groups used for GS, angiosperms and algae have been explored the most with great success. GS with animal-derived biomaterials, such as chitin, silk (sericin, fibroin and spider silk) or cell extract of invertebrates have also been reported. Gram positive and gram negative bacteria, different fungal species and virus particles have also shown their abilities in the reduction of metal ions. However, not a thumb rule, most of the reducing agents sourced from living world also act as capping agents and render MNPs less toxic or more biocompatible. The most unexplored area so far in GS is the mechanism studies for different natural reducing agents expect for few of them, such as tea and neem plants. This review encompasses the recent advances in the GS of MNPs using plants, animals and microorganisms and analyzes the key points and further discusses the pros and cons of GS in respect of chemical synthesis.

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Section: Gymnospermsmentioning

confidence: 99%

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Das

Pachapur

Lonappan

et al. 2017

Nanotechnol. Environ. Eng.

354

136

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“…They reported that more than 90% of the platinum ions were converted into nanoparticles using 10% leaf biomass concentration at 95 °C, and the average size of synthesized nanoparticles ranged from 2 to 12 nm. Coccia et al [5] reported one-pot synthesis of platinum and palladium nanoparticles using lignin isolated from red pine (Pinus resinosa). Rapid synthesis of platinum nanoparticles has also been reported by Soundarrajan et al [6] Ocimum sanctum (Tulsi) is a medicinal herb abundantly found and cultured in India, Malaysia, Australia, West Africa, and some of the Arab countries [7].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of Noble Metal of Platinum Nanoparticles from Ocimum sanctum (Tulsi) Plant- Extracts

Prabhu¹,

Gajendran²

2017

IOSR JBB

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“…Hitherto, various types of ligands or surfactants stabilized Au [32], Ag [33], Pd [34], Pt [34,35] and Ni [36] nanoparticles have already been tested as active nanocatalyst in the reduction of nitrophenols in the presence of sodium borohydride as a reductant. However, the recovery of noble metal nanoparticles from such stabilizers-containing systems is not easy and also makes UV/vis spectroscopy monitoring of the reaction extremely difficult due to the presence of suspended nanoparticles in the reaction solution.…”

Section: Introductionmentioning

confidence: 99%

Nickel nanoparticles decorated on electrospun polycaprolactone/chitosan nanofibers as flexible, highly active and reusable nanocatalyst in the reduction of nitrophenols under mild conditions

Karakaş

Çelebioğlu

Çelebı

et al. 2017

Applied Catalysis B: Environmental

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a b s t r a c tToday, the reduction of nitro aromatics stands a major challenge because of the pollutant and detrimental nature of these compounds. In the present study, we show that nickel(0) nanoparticles (Ni-NP) decorated on electrospun polymeric (polycaprolactone(PCL)/chitosan) nanofibers (Ni-NP/ENF) effectively catalyze the reduction of various nitrophenols (2-nitrophenol, 2,4-dinitrophenol, 2,4,6-trinitrophenol) under mild conditions. Ni-NP/ENF nanocatalyst was reproducibly prepared by deposition-reduction technique. The detailed characterization of these Ni-NP/ENF based nanocatalyst have been performed by using various spectroscopic tools including ICP-OES, P-XRD, XPS, SEM, BFTEM, HRTEM and BFTEM-EDX techniques. The results revealed the formation of well-dispersed nickel(0) NP (d mean = 2.71-2.93 nm) on the surface of electrospun polymeric nanofibers. The catalytic activity of the resulting Ni-NP/ENF was evaluated in the catalytic reduction of nitrophenols in aqueous solution in the presence of sodium borohydride (NaBH 4 ) as reducing agent, in which Ni-NP/ENF nanocatalyst has shown high activity (TOF = 46.2 mol 2-nitrophenol/mol Ni min; 48.2 mol 2,4-dinitrophenol/mol Ni min; 65.6 mol 2,4,6-trinitrophenol/mol Ni min). More importantly, due to the nanofibrous polymeric support, Ni-NP/ENF has shown a flexible characteristics along with reusability property. Testing the catalytic stability of Ni-NP/ENF revealed that this new catalytic material provides high reusability performance (at 3rd reuse 86% for 2-nitrophenol, 83% 2,4-dinitrophenol and 82% 2,4,6-trinitrophenol) for the reduction of nitrophenols even at room temperature and under air. The present study reported here also includes the compilation of wealthy kinetic data for Ni-NP/ENF catalyzed the reduction of nitrophenols in aqueous sodium borohydride solution depending on temperature and type of support material (Al 2 O 3 , C, SiO 2 ) to understand the effect of the support material and determine the activation parameters.

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One-pot synthesis of lignin-stabilised platinum and palladium nanoparticles and their catalytic behaviour in oxidation and reduction reactions

Cited by 202 publications

References 42 publications

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Biological synthesis of metallic nanoparticles: plants, animals and microbial aspects

Green Synthesis of Noble Metal of Platinum Nanoparticles from Ocimum sanctum (Tulsi) Plant- Extracts

Nickel nanoparticles decorated on electrospun polycaprolactone/chitosan nanofibers as flexible, highly active and reusable nanocatalyst in the reduction of nitrophenols under mild conditions

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