Abstract

Gold nanoparticles (AuNPs) decorated CNTs are promising materials for photocatalytics and biosensors. However, the synthesis of AuNPs chemically linked to the walls of MWCNTs is challenging and toxic products such as thionylchloride (SOCl2) or [1-ethyl-3(dimethyl-amino) propyl] carbodiimide hydrochloride (EDAC) need to be used. This work reports a new approach to prepare gold nanoparticles decorated multiwalled carbon nanotubes (MWCNTs) by using cysteaminium chloride via the formation of a Zwitterionic acide-base bond. The grafting process consists of 3 mains steps: oxidation, thiolation and decoration of AuNPs on the surface of MWCNTs. The completion of each step has been verified out by both spectroscopic (Raman, UV-Vis, FT-IR) and Scanning Electron Miscroscopy (SEM). The chemical bonding states of synthesized products have been proven by X-ray photoelectron spectroscopy (XPS).

Details

Title
Synthesis of Gold Nanoparticles Decorated with Multiwalled Carbon Nanotubes (Au-MWCNTs) via Cysteaminium Chloride Functionalization
Author
Duc Chinh Vu 1 ; Speranza Giorgio 2   VIAFID ORCID Logo  ; Migliaresi Claudio 3 ; Nguyen, Van Chuc 4 ; Minh Tan Vu 5 ; Nguyen-Tri, Phuong 6   VIAFID ORCID Logo 

1  University of Trento, Department of Industrial Engineering, Trento, Italy (GRID:grid.11696.39) (ISNI:0000 0004 1937 0351); Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam (GRID:grid.472706.0); Vietnam Academy of Science and Technology, Graduate University of Science and Technology, Hanoi, Vietnam (GRID:grid.267849.6) (ISNI:0000 0001 2105 6888) 
2  Fondazione Bruno Kessler, Centre for Materials and Microsystems, Povo, Italy (GRID:grid.11469.3b) (ISNI:0000 0000 9780 0901) 
3  University of Trento, Department of Industrial Engineering, Trento, Italy (GRID:grid.11696.39) (ISNI:0000 0004 1937 0351) 
4  Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam (GRID:grid.472706.0) 
5  Hanoi University of Industry, Bac Tu Liem, Hanoi, Vietnam (GRID:grid.448981.8) (ISNI:0000 0004 0579 6247) 
6  Duy Tan University, Institute of Research and Development, Da Nang, Vietnam (GRID:grid.444918.4); Université de Montréal, Department of Chemistry, Quebec, Canada (GRID:grid.14848.31) (ISNI:0000 0001 2292 3357) 
Publication year
2019
Publication date
Dec 2019
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-019-42055-7
ProQuest document ID
2203730577
Copyright
© The Author(s) 2019. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.