5648
Kholod Hamdy Kamal Kamel
"Preparation and Characterization of Magnetic Nanocomposite from Agricultural Waste for Industrial Wastewater Treatment"
Corncob,Silica nanocomposite, Magnetic nanocomposite, Adsorption isotherms, Wastewater, Regeneration, Sorption process.
Corncob and their modified nanocomposites were used for removal of organic dye and heavy metals. Fourier transform infrared (FTIR) spectrophotometry, x-ray diffraction (XRD), scanning electron microscopy (SEM), dispersive energy x-ray spectrometer (EDX), high-resolution transmission electron microscopy (HR-TEM), zeta potential measurements, and vibrating sample magnetometer (VSM) were used for characterization and identify them. The potential of these synthesized sorbents to remove methylene blue, lead ions, and copper ions from aqueous solutions was investigated in batch experiments, where several parameters such as contact time, initial concentration of pollutants, pH and sorbent dose were investigated. kinetic and isotherm models were applied for sorbents. It is remarkable from the data that, the removal efficiency of methylene blue by silica/corncobnanocomposite (98 %) is higher than corncob (83 %) and magnetic silica/corncob nanocomposite (76.5 %). In contrast the removal efficiency of Cu2+, and Pb2+ by magnetic silica/corncob nanocomposite (84%, 98.8%) is higher than corncob (66%, 78%) and silica/corncob nanocomposite (73%, 88.5 %), respectively. Furthermore, from a single column results, it seems that silica/corncob nanocomposite has proven to be a promising material andeconomic for removal of heavy metals from wastewater and the sorbents’ regeneration was addressed and found promising.
2019
Ph.d
Ain Shams
Science