Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes

Jianjia Liu; Jie Wang; Zhongming Zhu; Li Li; Xuhong Guo; Stephen F. Lincoln; Robert K. Prud'homme

doi:10.1002/aic.14465

Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes

Jianjia Liu, Jie Wang, Zhongming Zhu, Li Li, Xuhong Guo, Stephen F. Lincoln, Robert K. Prud'homme

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

36 Scopus citations

Abstract

Significance: Spherical polyelectrolyte brushes (SPB) loaded with silver nanoparticles (Ag-NP) were synthesized, and they were characterized in aqueous solution using TEM, ICP-AES and UV-vis spectroscopy. While the size distribution of the Ag-NP synthesized at a given temperature is quite uniform this distribution varies with change in synthesis temperature. The Ag-NP have a strong catalytic effect on the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. The addition of α-cyclodextrin (α-CD) further accelerates this 4-nitrophenol reduction and modifies the associated activation parameters. This is attributed to α-CD complexing 4-nitrophenol in the vicinity of the Ag-NP surface and thereby aiding the catalysis.

Original language	English (US)
Pages (from-to)	1977-1982
Number of pages	6
Journal	AIChE Journal
Volume	60
Issue number	6
DOIs	https://doi.org/10.1002/aic.14465
State	Published - Jun 2014

All Science Journal Classification (ASJC) codes

Biotechnology
Environmental Engineering
General Chemical Engineering

Keywords

Catalysis
Silver nanoparticle
Spherical polyelectrolyte brush
α-cyclodextrin

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10.1002/aic.14465

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title = "Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes",

abstract = "Significance: Spherical polyelectrolyte brushes (SPB) loaded with silver nanoparticles (Ag-NP) were synthesized, and they were characterized in aqueous solution using TEM, ICP-AES and UV-vis spectroscopy. While the size distribution of the Ag-NP synthesized at a given temperature is quite uniform this distribution varies with change in synthesis temperature. The Ag-NP have a strong catalytic effect on the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. The addition of α-cyclodextrin (α-CD) further accelerates this 4-nitrophenol reduction and modifies the associated activation parameters. This is attributed to α-CD complexing 4-nitrophenol in the vicinity of the Ag-NP surface and thereby aiding the catalysis.",

keywords = "Catalysis, Silver nanoparticle, Spherical polyelectrolyte brush, α-cyclodextrin",

author = "Jianjia Liu and Jie Wang and Zhongming Zhu and Li Li and Xuhong Guo and Lincoln, {Stephen F.} and Prud'homme, {Robert K.}",

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T1 - Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes

AU - Liu, Jianjia

AU - Wang, Jie

AU - Zhu, Zhongming

AU - Li, Li

AU - Guo, Xuhong

AU - Lincoln, Stephen F.

AU - Prud'homme, Robert K.

PY - 2014/6

Y1 - 2014/6

N2 - Significance: Spherical polyelectrolyte brushes (SPB) loaded with silver nanoparticles (Ag-NP) were synthesized, and they were characterized in aqueous solution using TEM, ICP-AES and UV-vis spectroscopy. While the size distribution of the Ag-NP synthesized at a given temperature is quite uniform this distribution varies with change in synthesis temperature. The Ag-NP have a strong catalytic effect on the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. The addition of α-cyclodextrin (α-CD) further accelerates this 4-nitrophenol reduction and modifies the associated activation parameters. This is attributed to α-CD complexing 4-nitrophenol in the vicinity of the Ag-NP surface and thereby aiding the catalysis.

AB - Significance: Spherical polyelectrolyte brushes (SPB) loaded with silver nanoparticles (Ag-NP) were synthesized, and they were characterized in aqueous solution using TEM, ICP-AES and UV-vis spectroscopy. While the size distribution of the Ag-NP synthesized at a given temperature is quite uniform this distribution varies with change in synthesis temperature. The Ag-NP have a strong catalytic effect on the reduction of 4-nitrophenol to 4-aminophenol by NaBH4. The addition of α-cyclodextrin (α-CD) further accelerates this 4-nitrophenol reduction and modifies the associated activation parameters. This is attributed to α-CD complexing 4-nitrophenol in the vicinity of the Ag-NP surface and thereby aiding the catalysis.

KW - Catalysis

KW - Silver nanoparticle

KW - Spherical polyelectrolyte brush

KW - α-cyclodextrin

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Cooperative catalytic activity of cyclodextrin and Ag nanoparticles immobilized on spherical polyelectrolyte brushes

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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