Tungsten Oxide/g-C₃N₄ Heterostructures: Composition, Structure, and Photocatalytic Applications

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

The construction of heterostructures promotes extending the light adsorption range graphitic carbon nitride (g-C3N4) materials, improving photogenerated charge carrier separation/transfer efficiency for attaining much enhanced performances. Because defective tungsten oxide (WOx) materials possess rich composition/morphology and an extended response in near-infrared region, WOx is a quite popular nanocomponent modifying g-C3N4, forming that can be used various photocatalytic applications involving water splitting, CO2 reduction, NOx removal, H2O2 generation, related chemical to fuel conversion reactions. In this review, important aspects WOx/g-C3N4 heterostructure photocatalysts are reviewed provide paradigms composition adjustment, structural design, these materials. growth control amorphous crystalline adjustment on types (e.g., type II Z-scheme), catalytic performances composite system also discussed detail. Moreover, effects synthetic methodologies preparation parameters formation two-dimensional layered inspiration state-of-the-art utilized photoredox challenges prospects future research summarized.

Language: Английский

Assessment of the Raceway Pond Reactor for Degradation of Methylene Blue Dye in Different Types of Water: A Systematic Kinetics Study under Natural Solar Light

ACS ES&T Water, Journal Year: 2024, Volume and Issue: 4(8), P. 3495 - 3508

Published: July 8, 2024

The Atacama Desert (AD), known for its extreme aridity and abundant solar irradiance, presents an opportunity innovative solar-based environmental research. Raceway pond reactors (RPRs), characterized by their shallow, circular design, offer a scalable solution pollutant degradation in aqueous environments, versatility eco-friendliness. This study explores the effectiveness of RPRs under intense radiation AD degrading Methylene blue (MB) dye across different water types: deionized (DW), tap (TW), seawater (SW) with natural pH levels 5.7, 7.1, 8.5, respectively. Zinc oxide (ZnO) synthesized via sol–gel method was used as photocatalyst average crystallite size 42.38 80.14 nm determined Scherrer Williamson–Hall equations, Results demonstrate successful removal 100%, 98.54%, 84.64% 20 mg/L MB using 0.4 g/L ZnO photocatalysts 10 L DW, TW, SW, Kinetic analysis favors pseudo-first-order model, order follows DW > TW SW based on constants (0.03902, 0.03217, 0.00969 min–1), highlighting potential energy remediation sun-rich regions.

Language: Английский

Fabrication of a high-efficiency hydrogen generation photocatalysis Pd/C3N5-K,I through synergistic effects of planar and spatial carrier separation

Journal of Materials Chemistry C, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Non-metallic I heteroatoms and metal Pd nanoparticles construct the charge transfer pathways within across CN layers, enhancing electron–hole separation.

Language: Английский