Oxygen-deficient MoO_3−x evoked synergistic photo-thermal catalytic CO₂ reduction over g-C₃N₄

Abstract

In situ photodeposition of MoO3−x with oxygen vacancies evoked synergistic photo-thermal catalytic CO2 reduction over g-C3N4.

Triple Play of Band Gap, Interband, and Plasmonic Excitations for Enhanced Catalytic Activity in Pd/HxMoO3 Nanoparticles in the Visible Region

“…Although no significant changes were detected in the core-level spectra of the O 1s after the H 2 bubbling step, an increase in the CO 2 chemisorption capacity of the sample was detected. This behavior has been also observed in MoO 3‑x samples. , The XANES spectrum for Pd/H x MoO 3 (Figure S2) shows a similar spectral profile relative to the Pd/MoO 3 and MoO 3 samples. This suggests that Mo 5+ sites are probably concentrated at the surface of the particles, being detected in XPS but not in XANES.…”

“…This behavior has been also observed in MoO 3-x samples. 46,47 The XANES spectrum for Pd/H x MoO 3 (Figure S2) shows a similar spectral profile relative to the Pd/MoO 3 and MoO 3 samples. This suggests that Mo 5+ sites are probably concentrated at the surface of the particles, being detected in XPS but not in XANES.…”

Constructing a crystalline–amorphous hydrated niobium pentoxide homojunction for superior photocatalytic CO2 reduction into CH4 with high selectivity

“…This includes monodentate carbonate (m-CO 3 2− ; 1321 and 1487 cm −1 ), bidentate carbonate (b-CO 3 2− ; 1535 cm −1 ), polydentate carbonate (p-CO 3 2− ; 1339 cm −1 ), and bicarbonate (HCO 3 − ; 1259,1632 and 1656 cm −1 ). 47–49 These observations indicate the efficient adsorption of CO 2 on the surface of Nb 2 O 5 . Crucially, upon switching on the light, new peaks appeared.…”

Interfacial Electronic States of GeC/g‐C3N4 van der Waal Heterostructure with Promising Photocatalytic Activity via Hydrogenation

“…A graphitic carbon nitride (g-C 3 N 4 ) polymeric semiconductor also shows great potential as a photocatalyst due to its easy functionalization, earth-abundant components, low-cost fabrication, excellent photocatalytic property, suitable band structure and high chemical and thermal stabilities. [21,22] g-C 3 N 4 is a stack of tri-s-triazine (heptazine) or s-triazine building blocks interconnected via tertiary amines [23] with van der Waals (vdWs) interactions operating between the nanosheets. [23] Recently, a variety of synthetic techniques have been used to create g-C 3 N 4 nanosheets, including template-assisted, liquid ultrasonic exfoliation, thermal exfoliation, and others.…”