چكيده به لاتين
In recent years, with the increase in population and urbanization, pharmaceutical compounds have become one of the main pollutants of water resources. Various methods exist for removing these pollutants from water resources, and adsorption is one of the most common methods due to its simplicity, cost-effectiveness, and high efficiency. In this thesis, luffa was modified with polypyrrole and layered double hydroxide (Ni-Al) for the removal of ibuprofen. The properties of Luffa/ppy/LDH were examined using scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDAX), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The effect of various parameters on the ibuprofen removal, such as contact time, ibuprofen concentration, adsorbent dosage, pH, stirring rate, and temperature, were studied. Optimization was carried out using the classic one-at-a-time method and design expert application. The results showed that the highest possible removal efficiency occurs at pH =𝟧, initial ibuprofen concentration of 𝟣𝟶𝟶 mg/L, and adsorbent dosage of 𝟣𝟧𝟶 mg in a contact time of 𝟨𝟢 minutes. Stirring rate of 𝟣𝟶𝟶 rpm was determined to be the optimum condition, and a temperature of 𝟤𝟧 Celsius was selected as the optimal temperature. Thermodynamic studies showed that the process is exothermic. The obtained data conforms to the temkin isotherm model, and the kinetic results indicate that the drug adsorption process follows the Elovich kinetic model. Based on the results, the adsorption capacity was found to be 𝟦𝟦.𝟥𝟣mg/g, and ꝮꝮ% of ibuprofen was removed from the aqueous solution under optimal conditions. Finally, it can be concluded that the Luffa/ppy/LDH bionanocomposite is a suitable adsorbent for removing ibuprofen from aqueous solutions.