Role of Purged Air in the Synthesis of the Mesoporous NiO/C Composite and Its Application in Wastewater Treatment

In this study, two methods were used to synthesize the NiO/C composite from agricultural waste. The mesoporous was successfully synthesized via a novel precipitation method in presence of dissolved gases. morphology composites differentiated by using characterization techniques such as X-ray diffraction, point zero charge (pHpzc), field-emission scanning electron microscopy (FESEM), Fourier transform infrared spectroscopy, energy-dispersive analysis (EDAX), and vibrating sample magnetometry (VSM). Then, mechanism synthesis elucidated above experimental data. Results FESEM EDAX analyses Ni(OH)2–carbon clearly showed role gases synthesis. Both subjected adsorbent remove toxic Pb(II) ions wastewater. Batch adsorption experiments carried out compare ion removal capability both materials. parameters effect pH, dosage adsorbents, initial concentration studied. At optimized conditions, isotherm studies for each also out. results revealed that maximum capacity qe (mg/g) 30.78 PJNC 43.48 PJGNC. VSM confirmed adsorbents soft magnetic Hence, they could be competently separated salted/treated water field.