A comprehensive review on spinel based novel catalysts for visible light assisted dye degradation

Structural, Optical, Magnetic and Photocatalytic Properties of Zn Doped CoFe2O4Decorated Bentonite Nanocomposites

“…Various toxic chemicals, hazardous organic wastes, pesticides, and organic dyes can cause great harm to human health as well as aquatic life. Removal of harmful wastes from polluted water is one of the biggest challenges to the nature, and many studies have been carried out for this purpose many methods such as adsorption, photocatalysis, and microemulsion have been developed to treat wastewater [1–4] . Among these methods, metal oxide semiconductor‐based photocatalysis is one of the most successful and promising techniques to decompose toxic pollutants in water under visible, UV irradiation, or sunlight [5–8] …”

“…Removal of harmful wastes from polluted water is one of the biggest challenges to the nature, and many studies have been carried out for this purpose many methods such as adsorption, photocatalysis, and microemulsion have been developed to treat wastewater. [1][2][3][4] Among these methods, metal oxide semiconductor-based photocatalysis is one of the most successful and promising techniques to decompose toxic pollutants in water under visible, UV irradiation, or sunlight. [5][6][7][8] There are also some disadvantages of photocatalysts, which show great promise for the decomposition of pollutants.…”

Impact of copper immobilization on dramatic conversion of inactive NiAlFeO4 to an active catalyst for reduction of nitrophenols and a visible light photocatalyst for effective removal of organic contaminants from waste water

“…[4][5][6][7][8] Out of all artificial sources of light, visible light has gained a lot of attention over the past few years due to its high degrading efficiency and stable performance, which is because of the photogenerated electrons and holes. 9 For example, Li and coauthors synthesized a Cd 0.5 Zn 0.5 S/Bi 2 WO 6 S-scheme heterojunction for photocatalytic oxidation of tetracycline and reduction of Cr(VI). 10 In addition, nitrophenol and its derivatives are among the most dangerous classes of environmental contaminants due to their extensive industrial use.…”

“…The capacity of transition metal nanoparticles to promote organic reactions is well recognised. 6,9,[33][34][35] Instead of employing precious noble metal species, the significant qualities of copper nanoparticles such as their low cost, strong thermal and electrical conductivity, good mechanical hardness and optimal catalytic activity have piqued the interest of researchers in this field. Despite their enormous use in promoting chemical reactions, transition metals and copper nanoparticles have a significant tendency to agglomerate.…”

Synthesis and Characterization of Li2Mn0.8Ni0.2SiO4/Mn3O4 Nanocomposite for Photocatalytic Degradation of Reactive Blue (RB5) Dye

“…Therefore, it's crucial to find a treatment approach that is both efficient and economical to remove or decompose the dye that is present in wastewater [8][9][10]. In this context, numerous techniques have already been employed for dye removal from wastewater, including electrochemical technology, membrane, oxidation by ozone, coagulation/flocculation, photocatalysis, biological purification [11][12][13][14][15][16].…”