Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres

Kewei Shu; Yujun Qin; Hongxia Luo; Pu Zhang; Zhi Xin Guo

doi:10.1016/j.matlet.2011.02.058

Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres

Kewei Shu, Yujun Qin^*, Hongxia Luo, Pu Zhang, Zhi Xin Guo

^*Corresponding author for this work

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

15 Scopus citations

Abstract

The electrostatic layer-by-layer (LbL) assembly of acid-modified multi-walled carbon nanotubes (MWNTs) and biopolymer chitosan (CHIT) is realized on planar substrates and polystyrene (PS) microsphere templates, respectively. The successful stepwise growing process of the composite films on planar substrates is investigated and confirmed by scanning electron microscopy and UV-vis spectroscopy. The transfer of the LbL assembly of MWNTs and CHIT to spherical PS microspheres leads to novel (MWNT/CHIT)PS core-shell structure, on which the gold nanoparticles (GNPs) are deposited to fabricate GNP(MWNT/CHIT)PS composite microspheres. The glass carbon electrodes modified with such (MWNT/CHIT)PS or GNP(MWNT/CHIT)PS composites exhibit satisfactory electrocatalytic activities for biomolecule dopamine.

Original language	English
Pages (from-to)	1510-1513
Number of pages	4
Journal	Materials Letters
Volume	65
Issue number	10
DOIs	https://doi.org/10.1016/j.matlet.2011.02.058
State	Published - 31 May 2011
Externally published	Yes

Keywords

Assembly
Carbon nanotube
Chitosan
Electrocatalysis
Gold nanoparticle
Microsphere

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.matlet.2011.02.058

Cite this

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title = "Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres",

abstract = "The electrostatic layer-by-layer (LbL) assembly of acid-modified multi-walled carbon nanotubes (MWNTs) and biopolymer chitosan (CHIT) is realized on planar substrates and polystyrene (PS) microsphere templates, respectively. The successful stepwise growing process of the composite films on planar substrates is investigated and confirmed by scanning electron microscopy and UV-vis spectroscopy. The transfer of the LbL assembly of MWNTs and CHIT to spherical PS microspheres leads to novel (MWNT/CHIT)PS core-shell structure, on which the gold nanoparticles (GNPs) are deposited to fabricate GNP(MWNT/CHIT)PS composite microspheres. The glass carbon electrodes modified with such (MWNT/CHIT)PS or GNP(MWNT/CHIT)PS composites exhibit satisfactory electrocatalytic activities for biomolecule dopamine.",

keywords = "Assembly, Carbon nanotube, Chitosan, Electrocatalysis, Gold nanoparticle, Microsphere",

author = "Kewei Shu and Yujun Qin and Hongxia Luo and Pu Zhang and Guo, {Zhi Xin}",

year = "2011",

month = may,

day = "31",

doi = "10.1016/j.matlet.2011.02.058",

language = "English",

volume = "65",

pages = "1510--1513",

journal = "Materials Letters",

issn = "0167-577X",

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number = "10",

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TY - JOUR

T1 - Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres

AU - Shu, Kewei

AU - Qin, Yujun

AU - Luo, Hongxia

AU - Zhang, Pu

AU - Guo, Zhi Xin

PY - 2011/5/31

Y1 - 2011/5/31

N2 - The electrostatic layer-by-layer (LbL) assembly of acid-modified multi-walled carbon nanotubes (MWNTs) and biopolymer chitosan (CHIT) is realized on planar substrates and polystyrene (PS) microsphere templates, respectively. The successful stepwise growing process of the composite films on planar substrates is investigated and confirmed by scanning electron microscopy and UV-vis spectroscopy. The transfer of the LbL assembly of MWNTs and CHIT to spherical PS microspheres leads to novel (MWNT/CHIT)PS core-shell structure, on which the gold nanoparticles (GNPs) are deposited to fabricate GNP(MWNT/CHIT)PS composite microspheres. The glass carbon electrodes modified with such (MWNT/CHIT)PS or GNP(MWNT/CHIT)PS composites exhibit satisfactory electrocatalytic activities for biomolecule dopamine.

AB - The electrostatic layer-by-layer (LbL) assembly of acid-modified multi-walled carbon nanotubes (MWNTs) and biopolymer chitosan (CHIT) is realized on planar substrates and polystyrene (PS) microsphere templates, respectively. The successful stepwise growing process of the composite films on planar substrates is investigated and confirmed by scanning electron microscopy and UV-vis spectroscopy. The transfer of the LbL assembly of MWNTs and CHIT to spherical PS microspheres leads to novel (MWNT/CHIT)PS core-shell structure, on which the gold nanoparticles (GNPs) are deposited to fabricate GNP(MWNT/CHIT)PS composite microspheres. The glass carbon electrodes modified with such (MWNT/CHIT)PS or GNP(MWNT/CHIT)PS composites exhibit satisfactory electrocatalytic activities for biomolecule dopamine.

KW - Assembly

KW - Carbon nanotube

KW - Chitosan

KW - Electrocatalysis

KW - Gold nanoparticle

KW - Microsphere

UR - http://www.scopus.com/inward/record.url?scp=79953224424&partnerID=8YFLogxK

U2 - 10.1016/j.matlet.2011.02.058

DO - 10.1016/j.matlet.2011.02.058

M3 - Article

AN - SCOPUS:79953224424

SN - 0167-577X

VL - 65

SP - 1510

EP - 1513

JO - Materials Letters

JF - Materials Letters

IS - 10

ER -

Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres

Abstract

Keywords

ASJC Scopus subject areas

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