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Preparation of graphene oxide decorated Fe3O4@SiO2 nanocomposites with superior adsorption capacity and SERS detection for organic dyes

Yang, Song, Zeng, Tian, Li, Yaling, Liu, Jun, Chen, Qian, Zhou, Ji, Ye, Yong and Tang, Bin 2015, Preparation of graphene oxide decorated Fe3O4@SiO2 nanocomposites with superior adsorption capacity and SERS detection for organic dyes, Journal of nanomaterials, vol. 2015, pp. 1-8, doi: 10.1155/2015/817924.

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Title Preparation of graphene oxide decorated Fe3O4@SiO2 nanocomposites with superior adsorption capacity and SERS detection for organic dyes
Author(s) Yang, Song
Zeng, Tian
Li, Yaling
Liu, Jun
Chen, Qian
Zhou, Ji
Ye, Yong
Tang, BinORCID iD for Tang, Bin orcid.org/0000-0001-7111-8223
Journal name Journal of nanomaterials
Volume number 2015
Start page 1
End page 8
Total pages 8
Publisher Hindawi Publishing
Place of publication Cairo, Egypt
Publication date 2015
ISSN 1687-4110
1687-4129
Keyword(s) Science & technology
technology
nanoscience & nanotechnology
textile science
Materials Science
molecularly imprinted polymers
enhanced raman-spectroscopy
methylene-blue
nanoparticles
particles
composite
Summary The fast detection and removal of organic dyes from contaminated water has become an urgent environmental issue due to their high toxicity, chemical stability, and low biodegradability. In this paper, we have developed graphene oxide decorated Fe3O4@SiO2 (Fe3O4@SiO2-GO) as a novel adsorbent aiming at the rapid adsorption and trace analysis of organic dyes followed by surface enhanced Raman scattering (SERS). The structure and morphology of the nanocomposites were characterized by transmission electron microscopy (TEM), Fourier infrared spectrometry (FT-IR), X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). The obtained nanocomposites were used to adsorb methylene blue (MB) in aqueous solution based on π-π stacking interaction and electrostatic attraction between MB and GO, and the adsorption behaviors of MB were investigated. Moreover, the obtained nanocomposites with adsorbed dyes were separated from the solution and loaded with silver nanoparticles for SERS detection. These nanocomposites showed superior SERS sensitivity and the lowest detectable concentration was 1.0 × 10-7 M.
Language eng
DOI 10.1155/2015/817924
Field of Research 100708 Nanomaterials
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2015, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30080703

Document type: Journal Article
Collections: Institute for Frontier Materials
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.