A Negatively Charged Hydrophobic Hemi-micelle of Fe 3 O 4 /Ag MNP Role Towards SERS, Photocatalysis and Bactericidal
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A Negatively Charged Hydrophobic Hemi‑micelle of Fe3O4/Ag MNP Role Towards SERS, Photocatalysis and Bactericidal A. Aarthi1 · M. Umadevi1 · R. Parimaladevi1 · G. V. Sathe2 · S. Arumugam3 · P. Sivaprakash3 Received: 17 August 2020 / Accepted: 21 October 2020 © Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract Surface enhanced Raman scattering (SERS), photocatalytic and antibacterial activities of Fe3O4/Ag magnetic nano particle (MNP) is reported in this work. A synthesized Fe3O4/Ag MNP is characterized with UV–visible, vibrational spectral studies (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometer (VSM) and transmission electron microscopy (TEM). VSM reports Fe3O4/Ag MNP posses good magnetic response and attribute as a SERS substrate. SERS property of Fe3O4/Ag MNP has studied with 10–8 M, 10–10 M and 1 0–12 M concentrations of R6G. Photocatalytic efficiency was calculated with both R6G and environmentally ignored real (leachate) sample. The degradation takes place with rate constant ˷ 0.012 min−1. Moreover, degradation efficiency of Ag NPs has improved with F e3O4 NPs. Also, as synthesized substrate shows an antibacterial activity against gram negative and gram positive bacteria with an inhibition zone of 5–8 mm. Both photonic and antibacterial properties make this material as promise for potential applications in environmental pollution, human medicine and contaminated drinking water.
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s10904-020-01802-4) contains supplementary material, which is available to authorized users. * M. Umadevi [email protected] 1
Department of Physics, Mother Teresa Women’s University, Kodaikanal 624102, India
2
UGC - DAE Consortium for Scientific Research, Indore, India
3
Centre for High-Pressure Research, Bharathidasan University, Trichy 620024, India
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Vol.:(0123456789)
Journal of Inorganic and Organometallic Polymers and Materials
Graphic Abstract
Keywords Fe3O4 Ag MNP · R6G · SERS · Photocatalysis · Antibacterial activity
1 Introduction Nanotechnology is concerned with the synthesis of materials in nanoscale dimension. Nanoscale materials have novel in physico-chemical properties such as size, morphology and nanomaterials composition, the material is unique from bulk specimen. Noble metal nanoparticles (NPS) have attracted much research attention due to their remarkable optical, catalytic and antimicrobial properties [1–5]. Recently, Surface Enhanced Raman Scattering (SERS) has provided another method for environmental
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analysis, which is mainly due to the large amount of electromagnetic enhancement caused by local surface plasmon resonance[1, 3–8]. The most critical aspect of SERS analysis is to select or manufacture metal nanoparticles as SERS active substrates [1, 3, 4]. In the presence of various competing ions and impurities, the effective analyte captured near the SERS substrate can improve the detection sensitivity of environmental samples [6].SERS oc
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