Efficient Nb₂O₅@g-C₃N₄ heterostructures for enhanced photocatalytic CO₂ reduction with highly selective conversion to CH₄

Abstract

A novel strategy combined with the virtues of both Nb2O5 and g-C3N4 is designed to construct a type II heterojunction, which realizes efficient photocatalytic CO2RR and shows great CH4 selectivity.

Tailoring the d-band center enables La doped ZnIn2S4 to be active for boosting photocatalytic activation of oxygen and degradation of antibiotics in wastewater

“…These results further indicate that La doping reduces the recombination rate of photogenerated electron–hole pairs, thereby enhancing the photocatalytic efficiency of La x -ZIS. 63,64…”

“…These results further indicate that La doping reduces the recombination rate of photogenerated electron-hole pairs, thereby enhancing the photocatalytic efficiency of La x -ZIS. 63,64 Furthermore, the charge density distribution in the highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of ZIS and La 1.37 -ZIS was studied to investigate the microscopic level separation of photogenerated carriers after La doping. These orbitals correspond to the valence band maximum (VBM) and conduction band minimum (CBM), respectively.…”

Enhanced photocatalytic CO2 reduction by controlled oxygen vacancy generation and co-constructed heterojunction strategy for Pd/CeO2

“…Extensive research has been conducted to enhance the efficiency and stability of photocatalysts. 4–6 Nevertheless, the photocatalytic activity of CO 2 reduction is currently constrained by the considerable activation energy required for carbon dioxide and the sluggish kinetics associated with specific electron and proton transfer processes. 7 Thus, it is a feasible prospect to find a reliable strategy to enhance the separation efficiency of photogenerated carriers for CO 2 -activated photocatalysts.…”