| Popis: |
In this study, hydrogel Nano-composite was prepared by free radical polymerization in the presence of sodium alginate (SA) and TiO2 nanoparticles (TiO2 NPS) as a surface catalyst. Potassium per sulfate (KPS) was used as a reaction initiator. Crosslinking agent methylene bis-acrylamide, the structure and morphology its hydrogel Nano-composites were studied using Transmission electron microscopy (TEM), X-ray diffraction (XRD), Energy dispersive X-ray spectroscopy (EDX), and Field emission scanning electron microscopy (FE-SEM). Several factors that affected the adsorption process were studied, including effect of pH, effect of salt concentration and temperature. Also studied was the swelling behavior in two acidic mediums (pH=7, pH=1.2), the best surface swelling medium was at (pH=7). The adsorption isotherms were studied, and the result obeyed as favorable by Fruendlich isotherm depended on the value of (R2= 0.9404). |
