Preparation of carbon nanotube/chitosan/gold nanoparticle composite microspheres

被引：15
作者：
Shu, Kewei [1 ]
Qin, Yujun [1 ]
Luo, Hongxia [1 ]
Zhang, Pu [1 ]
Guo, Zhi-Xin [1 ]
机构：
[1] Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
来源：
MATERIALS LETTERS | 2011年 / 65卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Carbon nanotube; Chitosan; Gold nanoparticle; Assembly; Microsphere; Electrocatalysis; GOLD NANOPARTICLES; HYDROGEN-PEROXIDE; MULTILAYER FILMS; GLUCOSE-OXIDASE; NANOTUBES; BIOSENSOR; CHITOSAN;
D O I：
10.1016/j.matlet.2011.02.058
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：1510 / 1513
页数：4
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