Application of Co3O4 in Photoelectrocatalytic Treatment of Wastewater Polluted with Organic Compounds: A Review

The negative effects of refractory organic substances in water on the environment and life have aroused worldwide attention. efficiency using photoelectrocatalysis (PEC) to degrade pollutants depends a large extent properties photoanode semiconductor. Therefore, selection satisfactory semiconductor material promote production intermediate reactive species (hydroxyl radicals superoxide radicals) has become key issue improving PEC. Among available catalysts, transition metal oxides received lot attention recent years due their low price significant advantages. Due its outstanding photoelectrocatalytic properties, Co3O4 emerged as candidate serve photoelectrocatalyst specifically for oxidation with oxygen these materials. This paper summarizes detail advances materials PEC, both pure Co3O4-based composites. In addition, this review discusses impact strategies performance photoelectrocatalysts, such synthesis methods, crystal surface structures, Finally, concludes presentation challenges workable solutions along discussion potential future research.