Visible-light induced tetracycline degradation catalyzed by dual Z-scheme InVO4/CuBi2O4/BiVO4 composites: The roles of oxygen vacancies and interfacial chemical bonds

Oxygen vacancy engineering of ultra-small CuWO4 nanoparticles for boosting photocatalytic organic pollutant degradation

“…As reported, the main active species in the photocatalytic degradation of MB are ˙O 2 − and ˙OH, 57 while the CB potential (−0.07 V) of CuWO 4 –OVs 350 is more positive than the standard redox potential of O 2 /˙O 2 − (−0.33 V vs . NHE), 58 restricting the production of ˙O 2 − in the reaction process; thus the ˙OH is the active substance in the photocatalytic degradation of MB for CuWO 4 –OVs 350. To further determine the reactive oxygen species (ROSs) in the photocatalytic system, electron spin resonance (ESR) measurements were conducted.…”

Active Sites Formed on InVO4/Co3O4 S‐Scheme Heterostructure for Photocatalytic Hydrogen Production

“…[21,22] In the fine spectrum of V 2p, the peaks at 517.80 eV and 525.02 eV mainly come from V 2p 3/2 and V 2p 1/2 , and show that V mainly exists in InVO 4 in the form of V 5 + state. [23,24] In addition, there are four main peaks and two typical satellite peaks in the fine spectrum of Co 2p of Co 3 O 4 . Among them, the peaks at 779.74 eV, 781.44 eV, 794.86 eV and 796.46 eV belong to Co 3 + 2p 3/2 , Co 2 + 2p 3/2 , Co 3 + 2p 1/2 and Co 2 + 2p 1/2 respectively, while the peaks at 789.51 eV and 804.73 eV are satellite peaks.…”

Revealing the primary role of the V4+/V5+ cycle in InVO4 catalysts for promoting the photo-Fenton reaction

“…6 Vanadate catalysts 7 are promising visible-light photocatalysts 8 for CO 2 reduction, 9 air purification, 10 hydrogen production 11 and water treatment. 12 However, inadequate adsorption capacity, 13 fast recombination of photogenerated electrons (e − ) and holes (h + ) 14 and a narrow absorption 15 range in visible light have hindered industrial application of vanadate photocatalysts. Hence, combining InVO 4 photocatalysis with the Fenton reaction for wastewater treatment is a rational approach.…”