Synthesis of nanostructured cupric oxide for visible light assisted degradation of organic wastewater pollutants

Abstract

When organic dye-containing wastewater from textile industries are sometimes released into the environment, the liquids tend to pollute the environment whilst their solid residue accrues on land after the evaporation of the water. Most of these synthetic compounds are known to be poisonous and carcinogenic to living organisms. For this study, a relatively simple, sustainable and cost-effective approach have been utilized to synthesize CuO nanoparticles using copper precursor salts: (CuSO 4 .5H 2 O) and (Cu(NO 3 ) 2 .3H 2 O), as a remedy for dye pollution reduction in water. Due to their simplicity of synthesis, insignificant harmfulness and cost, copper (II) oxide (CuO) nanoparticles were used to breakdown three generally utilized dyes; Rhodamine B (RhB), Methylene Blue (MB)-[Methylthioninium chloride] and Methyl Orange (MeO). The as-prepared nanoparticles were characterized to

Vacancy induced enhanced photocatalytic activity of nitrogen doped CuO NPs synthesized by Co-precipitation method

“…Photocatalysis is a very promising and eco-friendly AOP method since the resulting by-products during treatment are mostly nontoxic [ 5 ]. When wastewater containing dyes are exposed to light in presence of the photocatalyst, dye degradation occurs via an oxidation reaction mechanism [ 6 ]. The ability of the photocatalyst to produce electron-hole (e-h + ) pairs upon light absorption is a key factor in its photocatalytic activity (PCA) [ 7 ].…”

“…Hence, it's crucial to assess novel modified CuO catalysts with enhanced photocatalytic activity [ 21 ]. Furthermore, CuO has received remarkable attention for applications such as photocatalysis [ 6 ], photodetector [ 22 ], electrode material for lithium-ion batteries [ 23 ], sensors [ 24 ], magnetic storage devices, solar cells [ 25 ].…”