Synthesis of narrowly dispersed silver and gold nanoparticles and their catalytic evaluation for morin oxidation

Ali K. Ilunga; Reinout Meijboom

doi:10.1016/j.apcata.2015.10.019

Synthesis of narrowly dispersed silver and gold nanoparticles and their catalytic evaluation for morin oxidation

Ali K. Ilunga, Reinout Meijboom

Chemical Sciences

University of Johannesburg

Research output: Contribution to journal › Article › peer-review

25 Citations (Scopus)

Abstract

We present a study on the synthesis of narrowly dispersed silver and gold nanoparticles using generation five amino-terminated poly(amidoamine) dendrimers as a template. UV-vis spectrophotometry was performed to monitor the synthesis process and to characterize the metal nanoparticles. Infrared (IR) spectroscopy, and transmission electron microscopy (TEM) were also used to characterize the metal nanoparticles. A catalytic oxidation of morin (quercetin) in the presence of hydrogen peroxide was performed as a model reaction to evaluate the metal nanoparticle activities. Ultra high performance liquid chromatography analysis was performed to identify the reaction products. The kinetic data obtained were modeled to the Langmuir-Hinshelwood equation. The encapsulated silver and gold nanoparticles show high activity which confirm the passive interaction with the dendrimer.

Original language	English
Pages (from-to)	17-29
Number of pages	13
Journal	Applied Catalysis A: General
Volume	509
DOIs	https://doi.org/10.1016/j.apcata.2015.10.019
Publication status	Published - 5 Jan 2016

Keywords

Dendrimer
Gold nanoparticles
Langmuir-Hinshelwood
Morin
Oxidation
Silver nanoparticles

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/j.apcata.2015.10.019

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title = "Synthesis of narrowly dispersed silver and gold nanoparticles and their catalytic evaluation for morin oxidation",

abstract = "We present a study on the synthesis of narrowly dispersed silver and gold nanoparticles using generation five amino-terminated poly(amidoamine) dendrimers as a template. UV-vis spectrophotometry was performed to monitor the synthesis process and to characterize the metal nanoparticles. Infrared (IR) spectroscopy, and transmission electron microscopy (TEM) were also used to characterize the metal nanoparticles. A catalytic oxidation of morin (quercetin) in the presence of hydrogen peroxide was performed as a model reaction to evaluate the metal nanoparticle activities. Ultra high performance liquid chromatography analysis was performed to identify the reaction products. The kinetic data obtained were modeled to the Langmuir-Hinshelwood equation. The encapsulated silver and gold nanoparticles show high activity which confirm the passive interaction with the dendrimer.",

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T1 - Synthesis of narrowly dispersed silver and gold nanoparticles and their catalytic evaluation for morin oxidation

AU - Ilunga, Ali K.

AU - Meijboom, Reinout

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N2 - We present a study on the synthesis of narrowly dispersed silver and gold nanoparticles using generation five amino-terminated poly(amidoamine) dendrimers as a template. UV-vis spectrophotometry was performed to monitor the synthesis process and to characterize the metal nanoparticles. Infrared (IR) spectroscopy, and transmission electron microscopy (TEM) were also used to characterize the metal nanoparticles. A catalytic oxidation of morin (quercetin) in the presence of hydrogen peroxide was performed as a model reaction to evaluate the metal nanoparticle activities. Ultra high performance liquid chromatography analysis was performed to identify the reaction products. The kinetic data obtained were modeled to the Langmuir-Hinshelwood equation. The encapsulated silver and gold nanoparticles show high activity which confirm the passive interaction with the dendrimer.

AB - We present a study on the synthesis of narrowly dispersed silver and gold nanoparticles using generation five amino-terminated poly(amidoamine) dendrimers as a template. UV-vis spectrophotometry was performed to monitor the synthesis process and to characterize the metal nanoparticles. Infrared (IR) spectroscopy, and transmission electron microscopy (TEM) were also used to characterize the metal nanoparticles. A catalytic oxidation of morin (quercetin) in the presence of hydrogen peroxide was performed as a model reaction to evaluate the metal nanoparticle activities. Ultra high performance liquid chromatography analysis was performed to identify the reaction products. The kinetic data obtained were modeled to the Langmuir-Hinshelwood equation. The encapsulated silver and gold nanoparticles show high activity which confirm the passive interaction with the dendrimer.

KW - Dendrimer

KW - Gold nanoparticles

KW - Langmuir-Hinshelwood

KW - Morin

KW - Oxidation

KW - Silver nanoparticles

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DO - 10.1016/j.apcata.2015.10.019

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AN - SCOPUS:84945337972

SN - 0926-860X

VL - 509

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JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Synthesis of narrowly dispersed silver and gold nanoparticles and their catalytic evaluation for morin oxidation

Abstract

Keywords

ASJC Scopus subject areas

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