Synthesis of Dendrimer‐Encapsulated Silver Nanoparticles and Its Catalytic Activity on the Reduction of 4‐Nitrophenol

Asharani, Indira Viswambaran; Thirumalai, Dhakshanamurthy

doi:10.1002/jccs.201100734

Cited by 12 publications

(4 citation statements)

References 18 publications

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“…6). Nevertheless, the peak at 400 nm remaing unchanged even after a day implies that the reduction in 4‐NP did not proceed in the absence of a catalyst [43]. This is due to the fact that the 4‐NP reduction process is thermodynamically favourable but kinetically hindered.…”

Section: Resultsmentioning

confidence: 99%

Catalytic reduction in 4‐nitrophenol using Actinodaphne madraspatana Bedd leaves‐mediated palladium nanoparticles

Priya

Asharani

2017

IET nanobiotechnol.

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There is a growing demand for the development of non-toxic, cost-effective, and environmentally benign green synthetic strategy for the production of metal nanoparticles. Herein, the authors have reported Actinodaphne madraspatana Bedd (AMB) leaves as the bioreducing agent for the synthesis of palladium nanoparticles (PdNPs) and its catalytic activity was evaluated for the reduction of 4-nitrophenol (4-NP) to 4-aminophenol with undisruptive effect on human health and environment. The broad and continuous absorbance spectrum obtained in the UV-visible region indicated the formation of PdNPs. The synthesized PdNPs were found to be crystalline, spherical, and quasi-spherical in shape with an average particle size of 13 nm was confirmed by X-ray diffractometer and transmission electron microscope. Fourier transform infrared spectra revealed the active photo constituents present in the aqueous extract of AMB involved in the bioreduction of palladium ions to PdNPs. The catalytic activity of biosynthesized PdNPs was demonstrated for the reduction of 4-NP via electron-relay process. Also, the influential parameters such as catalyst dosage, concentration of 4-NP, and sodium borohydride were studied in detail. From the present study, PdNPs were found to be a potential nanocatalyst for nitro compound reduction and also for environmental remediation of wastewater effluents from industries.

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Section: Resultsmentioning

confidence: 99%

Catalytic reduction in 4‐nitrophenol using Actinodaphne madraspatana Bedd leaves‐mediated palladium nanoparticles

Priya

Asharani

2017

IET nanobiotechnol.

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“…Among other efforts worth mentioning, Asharani and Thirumalai reported the synthesis of PEG-G1-(3,5-DHB-OH)16 (Figure 6a) a poly(ethylene glycol core) dendrimer bearing hydroxyl terminal groups and paired it with silver cations [93]. Analogous successful catalytic Ag NPs combination was implemented with polyetheramine (Jeffamine) core PAMAM dendrimer [94].…”

Section: Conventional Homogenous Catalysis By Metal Nanoparticlesmentioning

confidence: 99%

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

et al. 2022

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Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched, and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations in their interior renders them ideal reaction media. In this framework, they are applied in many environmentally benign implementations. One of the most important among them is water purification through pollutant decomposition. Simple and composite catalysts and photo-catalysts containing dendritic polymers and applied in water remediation will be discussed jointly with some unconventional solutions and prospects.

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“…In between some more efforts worth mentioning Asharani and Thirumalai reported the synthesis of PEG-G1-(3,5-DHB-OH)16 (Figure 6a) a poly(ethylene glycol core) dendrimer bearing hydroxyl terminal groups and paired it with silver cations [84]. Analogous successful catalytic Ag NPs combination was implemented with Polyetheramine (Jeffamine) core PAMAM dendrimer [85].…”

Section: Preprintsmentioning

confidence: 99%

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Arkas¹,

Anastopoulos²,

Giannakoudakis³

et al. 2021

Preprint

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Radially polymerized dendritic compounds are nowadays an established polymer category next to their linear, branched and cross-linked counterparts. Their uncommon tree-like architecture is characterized by adjustable internal cavities and external groups. They are therefore exceptional absorbents and this attainment of high concentrations into their interior renders them ideal reac-tion media. In this framework they are applied in many environmentally benign implementa-tions. One of the most important among them is water purification though pollutant decomposi-tion. Simple and composite catalysts and photo-catalysts containing dendritic polymers and ap-plied in water remediation will be discussed jointly with some unconventional solutions and fu-ture prospects.

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Synthesis of Dendrimer‐Encapsulated Silver Nanoparticles and Its Catalytic Activity on the Reduction of 4‐Nitrophenol

Cited by 12 publications

References 18 publications

Catalytic reduction in 4‐nitrophenol using Actinodaphne madraspatana Bedd leaves‐mediated palladium nanoparticles

Catalytic reduction in 4‐nitrophenol using Actinodaphne madraspatana Bedd leaves‐mediated palladium nanoparticles

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

Catalytic Neutralization of Water Pollutants Mediated by Dendritic Polymers

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