Green preparation and characterization of graphene oxide/carbon nanotubes-loaded carboxymethyl cellulose nanocomposites

In this study, a homogeneous and stable dispersion of graphene oxide (GO)/carbon nanotube (CNT) complexes (GCCs) was obtained by dispersing CNTs in an aqueous solution using GO in the absence of dispersing agents. Furthermore, carboxymethyl cellulose/GCC (CMC/GCC) nanocomposite films were prepared b...

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Bibliographic Details
Published in:Scientific reports 2018-12, Vol.8 (1), p.17601-10, Article 17601
Main Authors: Son, Yeong-Rae, Park, Soo-Jin
Format: Article
Language:English
Subjects:
140/146
639/166/898
639/301/357/73
639/925/357/73
Carboxymethylcellulose
Cellulose
Evaporation
Fourier transforms
Humanities and Social Sciences
Infrared spectroscopy
Mechanical properties
Microscopy
multidisciplinary
Nanocomposites
Nanotubes
Photoelectron spectroscopy
Scanning electron microscopy
Science
Science (multidisciplinary)
Spectrophotometry
Spectrum analysis
Transmission electron microscopy
X-ray diffraction
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Summary:In this study, a homogeneous and stable dispersion of graphene oxide (GO)/carbon nanotube (CNT) complexes (GCCs) was obtained by dispersing CNTs in an aqueous solution using GO in the absence of dispersing agents. Furthermore, carboxymethyl cellulose/GCC (CMC/GCC) nanocomposite films were prepared by a simple solution mixing-evaporation method. The dispersibility of the GCCs with different CNT contents was investigated by UV-Vis spectrophotometry. The morphological and crystalline structures of the samples were analyzed by transmission electron microscopy, scanning electron microscopy, and X-ray diffraction. X-ray photoelectron spectroscopy and Fourier-transform infrared spectroscopy were conducted to identify the chemical composition of GO, CNTs, and GCCs. These results revealed that CNTs could be stably dispersed in water using GO. In addition, when CMC/GCC nanocomposite films were prepared by mixing CMC and GCCs, CNTs were uniformly dispersed in the CMC matrix. The tensile behavior was investigated using a universal testing machine. The tensile strength and Young’s modulus of the CMC/GCC nanocomposite films were significantly improved by up to about 121% and 122%, respectively, compared to those of pure CMC because of uniform and strong π-π interfacial interactions between CNTs and CMC polymer.
ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-018-35984-2