3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains for in situ SERS monitoring of plasmon-assisted catalytic reactions
Author(s)
Ding, Qiandian
Zhou, Hongjian
Zhang, Haimin
Zhang, Yunxia
Wang, Guozhong
Zhao, Huijun
Griffith University Author(s)
Year published
2016
Metadata
Show full item recordAbstract
One-dimensional (1D) assembled magnetoplasmonic nanochains (MPNCs) were fabricated using Fe3O4@Au core–shell nanoparticles (NPs) via a magnetic field induced assembly. With the help of a silver growth solution, the 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains (Fe3O4@Au@Ag NAMPCs) were prepared via an in situ reduction method. A heterogeneous epitaxial growth mechanism was proposed to explain the growth process of the Fe3O4@Au@Ag NAMPCs. The Fe3O4@Au@Ag NAMPCs possessed large numbers of hot spots within the highly ordered structure and were used as a SERS substrate to enhance the sensitivity, uniformity and ...
View more >One-dimensional (1D) assembled magnetoplasmonic nanochains (MPNCs) were fabricated using Fe3O4@Au core–shell nanoparticles (NPs) via a magnetic field induced assembly. With the help of a silver growth solution, the 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains (Fe3O4@Au@Ag NAMPCs) were prepared via an in situ reduction method. A heterogeneous epitaxial growth mechanism was proposed to explain the growth process of the Fe3O4@Au@Ag NAMPCs. The Fe3O4@Au@Ag NAMPCs possessed large numbers of hot spots within the highly ordered structure and were used as a SERS substrate to enhance the sensitivity, uniformity and reproducibility of Raman signals. Subsequently, the Fe3O4@Au@Ag NAMPCs, integrating a heterogeneous catalysis and in situ SERS detection, was assessed to monitor the catalytic reduction of 4-nitrothiophenol (4-NTP) to p,p′-dimercaptoazobenzene (DMAB).
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View more >One-dimensional (1D) assembled magnetoplasmonic nanochains (MPNCs) were fabricated using Fe3O4@Au core–shell nanoparticles (NPs) via a magnetic field induced assembly. With the help of a silver growth solution, the 3D Fe3O4@Au@Ag nanoflowers assembled magnetoplasmonic chains (Fe3O4@Au@Ag NAMPCs) were prepared via an in situ reduction method. A heterogeneous epitaxial growth mechanism was proposed to explain the growth process of the Fe3O4@Au@Ag NAMPCs. The Fe3O4@Au@Ag NAMPCs possessed large numbers of hot spots within the highly ordered structure and were used as a SERS substrate to enhance the sensitivity, uniformity and reproducibility of Raman signals. Subsequently, the Fe3O4@Au@Ag NAMPCs, integrating a heterogeneous catalysis and in situ SERS detection, was assessed to monitor the catalytic reduction of 4-nitrothiophenol (4-NTP) to p,p′-dimercaptoazobenzene (DMAB).
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Journal Title
Journal of Materials Chemistry A
Volume
4
Issue
22
Subject
Macromolecular and materials chemistry
Macromolecular and materials chemistry not elsewhere classified
Materials engineering
Other engineering