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

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 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 Fe3O4 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