A Negatively Charged Hydrophobic Hemi-micelle of Fe3O4/Ag MNP Role Towards SERS, Photocatalysis and Bactericidal

• Published in: Journal of inorganic and organometallic polymers and materials Vol. 31; no. 4; pp. 1469 - 1479
• Main Authors: Aarthi, A., Umadevi, M., Parimaladevi, R., Sathe, G. V., Arumugam, S., Sivaprakash, P.
• Format: Journal Article
• Language: English
• Published: New York Springer US 01.04.2021; Springer Nature B.V
• Subjects: Chemistry; Chemistry and Materials Science; Degradation; Drinking water; Inorganic Chemistry; Iron oxides; Magnetic properties; Magnetometers; Micelles; Nanoparticles; Organic Chemistry; Photocatalysis; Polymer Sciences; Raman spectra; Silver; Substrates; Synthesis; Water pollution; R6G; Ag MNP; SERS; Photocatalysis; Antibacterial activity; Fe; O
• ISSN: 1574-1443; 1574-1451
• DOI: 10.1007/s10904-020-01802-4

Surface enhanced Raman scattering (SERS), photocatalytic and antibacterial activities of Fe 3 O 4 /Ag magnetic nano particle (MNP) is reported in this work. A synthesized Fe 3 O 4 /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 Fe 3 O 4 /Ag MNP posses good magnetic response and attribute as a SERS substrate. SERS property of Fe 3 O 4 /Ag MNP has studied with 10 –8  M, 10 –10  M and 10 –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 Fe 3 O 4 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. Graphic Abstract