Synthesis of NiWO4 nanostructure and NiWO4/CdO nanocomposites as an effective photocatalyst for enhanced degradation and removal of organic contaminant

NiWO4 nanostructure and NiWO4/CdO nanocomposites have been prepared through a new rapid co precipitation in presence of tween 80 as capping agent at 500 for 30 min. This study aimed to investigate the effects metal to capping agent ratios on the morphology and particle size of final products. Furthermore, due to occurrence of red shift in nonanocomposite, during the coupling of CdO into NiWO4, photocatalytic propertie of final products were improved which lead to improve photo-destruction efficiency for rhodamine B from 78 to 90%.The as-obtained NiWO4/CdO nanocomposites was analyzed by ultraviolet–visible spectroscopy, transmission electron microscopy, field emission scanning electron microscopy, vibrating sample magnetometer, and X-ray diffraction.