Kinetics and mechanism of the interaction between HAuCl4 and rutin

Borodina, V. G.; Mirgorod, Yu. A.

doi:10.1134/s0023158414060044

Cited by 24 publications

(10 citation statements)

References 12 publications

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“…Fig 4 illustrated that the presence of leaves extract in AgCN leads to the higher degradation rate of 2,4-D (98%). This is mainly owed to the leaves extract that plays a crucial role as a capping agent which successfully produce a diminutive AgCN, which subsequently have a high catalytic activity towards the photodegradation of 2,4-D [33,34]. This result is also in agreement with previous studies reported which concluded that the size of nanoparticles have significant effect to the 2,4-D photocatalytic degradation [35].…”

Section: Photocatalytic Activitysupporting

confidence: 90%

Cymbopogon nardus Mediated Synthesis of Ag Nanoparticles for the Photocatalytic Degradation of 2,4-Dicholorophenoxyacetic Acid

Kamarudin

Setiabudi

Jusoh

et al. 2018

Bull. Chem. React. Eng. Catal.

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Advanced extraction method such as simultaneous ultrasonic-hydrodistillation (UAE-HD) extraction method has been proved to increased extraction yield of plant material yet the application of this method in the preparation of metal nanoparticles has not been studied. In this study, Cymbopogon nardus (C.N) extracted via UAE-HD extraction method was used to synthesis silver (Ag) nanoparticles. XRD and TEM analysis confirms the formation of spherical shape Ag nanoparticles with size ranging between 10-50 nm. FTIR spectra suggest the presence of bioactive compounds in the C.N leaves extract that may responsible to the stabilization and reduction of Ag ions (Ag + ) to metallic Ag nanoparticles (Ag 0 ). The TPC analysis successfully proved that huge number of phenolic compound greatly involved in the nanoparticles synthesis process. Next, the catalytic activity of the synthesized Ag nanoparticles was tested towards the degradation of 2,4-Dicholorophenoxyacetic acid herbicide with remarkable degradation performance up to 98%. Kinetic study confirms that surface reaction was the controlling step of the catalytic process.

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Section: Photocatalytic Activitysupporting

confidence: 90%

Cymbopogon nardus Mediated Synthesis of Ag Nanoparticles for the Photocatalytic Degradation of 2,4-Dicholorophenoxyacetic Acid

Kamarudin

Setiabudi

Jusoh

et al. 2018

Bull. Chem. React. Eng. Catal.

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“…The mechanism of nanoparticle formation consists of mainly three stages: reduction of ions, clustering and further nanoparticle growth. The features of each stage depend upon the nature of reducing agent, its concentration, pH, AgNO 3 : reducing agent concentration 45 . According to some researchers, the -OH groups present in flavonoids such as quercetin may be responsible for the reduction of silver ions to AgNPs 46 .…”

Section: Resultsmentioning

confidence: 99%

“…Tulsi contains a high amount of flavonoid (quercetin) having hydroxyl and ketonic groups. Quercetin reacts with Ag + as an acid through the most reactive hydroxyl groups attached to the aromatic ring carbon atoms which can reduce the silver ions to silver nanoparticles and provide stability against agglomeration 45 , 50 , 51 . The enzymes present in leaf extract combines with silver ions to form an enzyme substrate complex with a charge transfer between quercetin and Ag + resulting into formation of protein capped silver nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

Medicinal Plant Leaf Extract and Pure Flavonoid Mediated Green Synthesis of Silver Nanoparticles and their Enhanced Antibacterial Property

Jain

Mehata

2017

Sci Rep

621

325

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The rewards of using plants and plant metabolites over other biological methods for nanoparticle synthesis have fascinated researchers to investigate mechanisms of metal ions uptake and bio-reduction by plants. Here, green chemistry were employed for the synthesis of silver nanoparticles (AgNPs) using leaf extracts of Ocimum Sanctum (Tulsi) and its derivative quercetin (flavonoid present in Tulsi) separately as precursors to investigate the role of biomolecules present in Tulsi in the formation of AgNPs from cationic silver under different physicochemical conditions such as pH, temperature, reaction time and reactants concentration. The size, shape, morphology, and stability of resultant AgNPs were investigated by optical spectroscopy (absorption, photoluminescence (PL), PL-lifetime and Fourier transform infrared), X-ray diffraction (XRD) analysis, and transmission electron microscopy (TEM). The enhanced antibacterial activity of AgNPs against E-Coli gram-negative bacterial strains was analyzed based on the zone of inhibition and minimal inhibitory concentration (MIC) indices. The results of different characterization techniques showed that AgNPs synthesized using both leaf extract and neat quercetin separately followed the same optical, morphological, and antibacterial characteristics, demonstrating that biomolecules (quercetin) present in Tulsi are mainly responsible for the reduction of metal ions to metal nanoparticles.

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“…This change in color is the 1st and the most rapid part of NP development that occurs due to the redox reaction between source of silver (silver nitrate) and reductants. The reduction of ions is followed by clustering and growth of nanoparticles (Borodina and Mirgorod ). When synthesis involves bacteria and fungi, reduction of silver nitrate to silver can be ascribed to the reductive enzymes present.…”

Section: Resultsmentioning

confidence: 99%

Biosynthesis of Silver Nanoparticles from Persimmon Byproducts and Incorporation in Biodegradable Sodium Alginate Thin Film

Ramachandraiah

Gnoc

Chin

2017

Journal of Food Science

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Kinetics and mechanism of the interaction between HAuCl4 and rutin

Cited by 24 publications

References 12 publications

Cymbopogon nardus Mediated Synthesis of Ag Nanoparticles for the Photocatalytic Degradation of 2,4-Dicholorophenoxyacetic Acid

Cymbopogon nardus Mediated Synthesis of Ag Nanoparticles for the Photocatalytic Degradation of 2,4-Dicholorophenoxyacetic Acid

Medicinal Plant Leaf Extract and Pure Flavonoid Mediated Green Synthesis of Silver Nanoparticles and their Enhanced Antibacterial Property

Biosynthesis of Silver Nanoparticles from Persimmon Byproducts and Incorporation in Biodegradable Sodium Alginate Thin Film

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