Visible light photocatalysis of amorphous Cl-Ta2O5−x microspheres for stabilized hydrogen generation

In situ construction of a C3N5 nanosheet/Bi2WO6 nanodot S-scheme heterojunction with enhanced structural defects for the efficient photocatalytic removal of tetracycline and Cr(vi)

“…Moreover, the existence of OVs can cause partial migration of the CB electrons in BWO to the defect levels to retard the charge recombination and ameliorate light absorption. 35,91 Overall, integrating BWO with CN to fabricate the CN/BWO S-scheme heterojunction guarantees the efficient separation of electron–hole pairs with high-level redox potential in the CN/BWO heterojunction, thereby achieving superior photocatalytic decontamination performance.CN/BWO + hν → CN/BWO(e − , h + )h + (CN) + e − (BWO) → Recombinatione − (CN) + O 2 → ˙O 2 − h + (BWO) + H 2 O/OH − → ˙OH + H + ˙O 2 − /˙OH/h + + TC → CO 2 + H 2 O + Small molecules˙O 2 − /e − + Cr( vi ) → Cr( iii )…”

“…photo-generated • O 2 − , • OH, and h + are capable of attacking TC molecules to achieve highly efficient decomposition, mineralization and detoxification (eqn (12)), while• O 2− and e − are primarily engaged in the photo-reduction of Cr(VI) (eqn (13)). Moreover, the existence of OVs can cause partial migration of the CB electrons in BWO to the defect levels to retard the charge recombination and ameliorate light absorption 35,91. Overall, integrating BWO with CN to fabricate the CN/BWO S-scheme heterojunction guarantees the efficient separation of electron-hole pairs with high-level redox potential in the CN/BWO heterojunction, thereby achieving superior photocatalytic decontamination performance.…”

NASICON-Type Lithium-Ion Conductor Materials with High Proton Conductivity Enabled by Lithium Vacancies

“…And the O 1s XPS spectra in Li 2.5 Sr 0.75 Zr 1.25 (PO 4 ) 3 could be fitted into three peaks at 532.94, 531.61, and 530.82 eV, which are assigned to the lattice oxygen atoms, oxygen atoms neighboring defects and oxygen atoms of the surface. 35,41,42 The ratio O v /O L for Li 2.5 Sr 0.75 Zr 1.25 (PO 4 ) 3 was significantly higher than SrZr 4 (PO 4 ) 6 , indicating that there are more oxygen vacancies. The increased amount of deficient oxygen species is ascribed to the doping of Sr 2+ in the sites of Zr 4+ .…”

Multiobjective Stepwise Design Strategy-Assisted Design of High-Performance Perovskite Oxide Photocatalysts

“…Because the main component of the solar spectra is composed of visible light (approximately 50%), , the primary goal of the design and development of new perovskite materials is to find a suitable E g to utilize visible light fully and effectively. The photocatalytic reaction is carried out on the surface of a catalyst.…”