Abstract
Carbon nanotubes (CNTs), due to surface ring currents and high specific surface area, are often used as absorbing materials and energy storage devices. This thesis focuses on use of Fe-filled CNTs as adsorbents for simultaneous filtering of methylene blue in solution. Fe-filled CNTs are made by pyrolysis of ferrocene and core structure, as revealed by XRD, SEM and TEM, is dominated by α-Fe, along with Fe3C and Fe2O3 as minority. SQUID indicate that Fe-filled CNTs are of ferromagnetic and saturation magnetization reaches a value as high as 0.85emu. UV-Vis spectrometric data confirm reduced concentration of methylene blue by Fe-filled CNTs and the adsorption mechanism resulting from the defects of hexagonal carbon network through Raman spectrometer.