Unraveling Electron-deficient Setaria-viridis-like Co3O4@MnO2 heterostructure with superior photoelectrocatalytic efficiency for water remediation

A direct Z-scheme S-Co3O4/Bi2WO6 heterostructure for enhanced photoelectrocatalytic degradation of tetracycline under visible light

“…The E g is determined by the Tauc relationship: ( αhν ) 1/ n = A ( hν − E g ), where α , h , v and A are the extinction coefficient, Planck's constant, the optical frequency and an arbitrary constant. 45 For Co 3 O 4 and S-Co 3 O 4 with a direct band gap, n is chosen to be 1/2, 15 and for the indirect band gap semiconductor Bi 2 WO 6 , n is chosen to be 2. 31 E g is determined from a plot of ( αhν ) 1/ n versus hν .…”

“…For example, the lack of secondary pollution, simple treatment, low time cost, and high mineralization efficiency mean that it is considered an efficient way to treat wastewater. 14,15 It combines the advantages of the EC and PC methods. 16 The antibiotic degradation in the PEC system is initiated by light activation of the semiconductor anode, followed by separation of the photogenerated e − /h + pair with the assistance of an electric field.…”

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

“…The solution was transferred to a 60 mL, Teflon-lined stainlesssteel autoclave, a Ti substrate was inserted as prepared, and the solution was held at 120 • C for 6 h. Subsequently, the Ti substrate having a pink precursor was naturally cooled to ambient temperature and cleaned with deionized water and vacuum dried, followed by annealing at 450 • C for 2 h at 2 • C/min to obtain a Co 3 O 4 nanowire array on the Ti substrate. Nanorods of Co 3 O 4 were obtained using this method [61] (see Figure 1).…”

Unveiling Hierarchical Dendritic Co3O4–SnO2 Heterostructure for Efficient Water Purification

“…Among the studied semiconductor photoelectric materials, Co 3 O 4 and SnO 2 are worthy of our attention because of their excellent optical and electrical properties in photocatalysis/electrocatalysis field applications, , such as transparent electrodes, gas sensors, supercapacitors, photocatalysts, and lithium-ion batteries . Our previous research has pointed out that Co 3 O 4 nanowire is suitable for basic materials of semiconductor heterostructures because nanowire morphology possesses large surface-to-volume ratios, better light trapping, enhanced charge separation efficacy, and a large surface area. − It should be noted that the morphology flexibility of SnO 2 (including nanorods, nanoribbons, nanotubes, nanosheets, hollow spheres, and nanoflowers) renders SnO 2 a suitable platform to interface with other materials into a functional device. The application of Co 3 O 4 /SnO 2 to construct integrated nanohybrids with targeted functionalities hardly found in the individual components for a PEC process is an exciting idea.…”