[19a-W834-1~11] 9.2 Nanowires and Nanoparticles

▲ [19a-W834-11] Algal assisted synthesis of iron oxide nanoparticles and dye removal studies

〇MohamedMatharSahib IbrahimKhaleelullah¹, Muralidharan Murugan³, Devasena Thiyagarajan³, Radha Kuravappullam Vedhaiyan³, Yasuhiro Hayakawa^1,2 (1.GSST Shizuoka Univ, 2.RIE Shizuoka Univ, 3.Anna Univ.)

Keywords:Alga,iron oxide nanoparticles,dye removal

Clean water is essential for human life but due to industrial growth much of the water released in the environment is polluted. So there is a need for implementation of better techniques to treat waste water. Recently the application of magnetic nanoparticles is gaining attention as they have many properties like photo-catalysis, adsorption and they are easily modified by an external magnetic field. Hence, here in a novel method for the synthesis of Super Paramagnetic Iron Oxide Nanoparticles (SPIONS) using a brown sea weed Turbineria decurrens is reported. The iron oxide nanoparticles (Fe₃O₄) are super paramagnetic in nature and they were characterized using X-Ray Diffraction Spectrometer (XRD), Fourier Transform Infra-Red Spectrometer (FTIR), Vibrating Sample Magnetometer (VSM), Scanning Electron Microscopy (SEM), Transmission Electron Microscope (TEM) and Thermo-Gravimetric and Differential Thermal Analysis (TG-DTA). FTIR analysis showed presence of organic surface molecules on the iron oxide surface which is because of the phyco-chemicals present in the sea weed. TEM analysis showed that the particles have spherical shape and size below than 20nm. These magnetic particles can be used for many applications including dye degradation and heavy metal removal from waste water. This SPIONs are attached with the adsorbents like carbon and silica and packed as a filter column. In this project degradation of the anthraquinone navy blue dye and reactive yellow 18 were reported along with its column based adsorption kinetics.