Multifunctional plasmonic co-doped Fe2O3@polydopamine-Au for adsorption, photocatalysis, and SERS-based sensing

Xiong, Wei, Zhao, Qidong, Li, Xinyong and Wang, Lianzhou (2016) Multifunctional plasmonic co-doped Fe2O3@polydopamine-Au for adsorption, photocatalysis, and SERS-based sensing. Particle and Particle Systems Characterization, 33 9: 602-609. doi:10.1002/ppsc.201600085


Author Xiong, Wei
Zhao, Qidong
Li, Xinyong
Wang, Lianzhou
Title Multifunctional plasmonic co-doped Fe2O3@polydopamine-Au for adsorption, photocatalysis, and SERS-based sensing
Formatted title
Multifunctional plasmonic co-doped Fe2O3@polydopamine-Au for adsorption, photocatalysis, and SERS-based sensing
Journal name Particle and Particle Systems Characterization   Check publisher's open access policy
ISSN 1521-4117
Publication date 2016-09-01
Sub-type Article (original research)
DOI 10.1002/ppsc.201600085
Open Access Status Not yet assessed
Volume 33
Issue 9
Start page 602
End page 609
Total pages 8
Place of publication Weinheim, Germany
Publisher Wiley-VCH Verlag
Language eng
Formatted abstract
A new type of multifunctional plasmonic nanoparticles, cobalt-doped Fe2O3@polydopamine-Au (Co-Fe2O3@PDA-Au), is fabricated via coating PDA through self-polymerization onto Co-Fe2O3 and further loading gold nanoparticles by in situ reduction onto the surface of PDA shell. Benefiting from the universal adhesive ability of PDA and negative zeta potetntial of the composite, the Co-Fe2O3@PDA-Au shows strong adsorptivity for cationic dyes. The presence of gold nanoparticle with the diameter of 15 nm in the Co-Fe2O3@PDA-Au system promotes surface-enhanced Raman scattering (SERS) activity with an impressive detection limit of 1 × 10−6 m. Thanks to the synergistic effect of the light harvesting of PDA, the surface plasmon resonance of Au, and the electron conductibility of PDA and Au, the Co-Fe2O3@PDA-Au exhibits an enhanced photocatalytic activity comparing with unmodified Co-Fe2O3. All the above-mentioned functions enable Co-Fe2O3@PDA-Au to be a multifunctional material system for various applications toward environmental pollutants.
Keyword Composite materials
Photocatalysis
SERS sensors
Surface plasmon resonance
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Chemical Engineering Publications
HERDC Pre-Audit
Australian Institute for Bioengineering and Nanotechnology Publications
 
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