Ultrafast Photoassisted Capture of Uranium over Cu2O/CuO Heterojunction Enabled by Rapid Interfacial Electron Transfer DOI

Huan‐Huan Liu,

Hongliang Guo,

Daming Huang

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 7(1), P. 295 - 303

Published: Dec. 19, 2024

Photoassisted capture of uranium provides a promising strategy for the sustainable utilization nuclear energy. Herein, we constructed Cu2O/CuO heterojunctions in situ by wet-etching method, showing ultrafast reaction kinetics and photocatalytic activity U(VI) reduction. In 8 ppm uranium-containing wastewater, exhibited remarkable extraction efficiency 94.6% within 10 min under irradiation, which exceeded most recently reported photocatalysts. The rate constant was 5.8-time larger than that pure Cu2O. A mechanism study indicated photogenerated electrons reduced CuO species created oxygen vacancy during photocatalysis process, strengthened binding UO22+. rapid electron transfer over heterojunction interfaces enhanced UO22+ strength formed accounted kinetics.

Language: Английский

Enhanced Charge Transfer Dynamics in a NiCo2S4–ZnxCd1–xS Photothermal Catalyst for Efficient Photoreforming of Waste Plastic DOI Creative Commons
Wenjie Su, Yule Zhang, Artem V. Kuklin

et al.

ACS Catalysis, Journal Year: 2024, Volume and Issue: 14(18), P. 13927 - 13939

Published: Sept. 5, 2024

Language: Английский

Citations

5
Generalized Synthetic Strategies toward Oxygen Vacancy-Enriched ZnO–ZnS Hollow Porous Spheres with Enhanced Photocatalytic Hydrogen Evolution DOI
Yong Xie, Ting-Wei Wang, Huiquan Li

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 10, 2025

Constructing a hollow porous ZnO–ZnS sphere is still big challenge due to the difficulty in controlling morphology and distribution of ZnO shell originating from fact that prefers grow along particular crystal planes. Here, we demonstrate novel synthetic strategy for preparation oxygen-vacancy-enriched (Ov-ZOS (HP)) spheres by combining concepts adopting template-directed method, selecting sulfidation precursor, tuning calcination process template. Structural characterization density functional theory (DFT) calculations reveal nanostructures oxygen vacancies heterojunction are beneficial promoting efficient charge transfer separation. The optimized Ov-ZOS (HP) exhibits enhanced rates hydrogen evolution reaction (71.86 mmol h–1 g–1), which 1.48, 2.08, 3.0 times higher than those spheres, vacancy-enriched nanosheets, respectively. Moreover, presents excellent cyclability photocatalytic evolution. Therefore, this study provides physical insights into various semiconductor heterojunctions hard form through other existing strategies solar energy utilization.

Language: Английский

Citations

0
Core-shell MoO3-X@ZnIn2S4 with homometallic ion-doped and heterogeneous interface for boosting photocatalytic removal U(VI) in seawater DOI
Nijuan Liu, Hongping Zhang,

Fupeng Jin

et al.

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132924 - 132924

Published: April 1, 2025

Language: Английский

Citations

0
Dual-defect AgBiO3/DCN S-scheme heterojunction for booted photocatalytic removal of Norfloxacin: Interfacial charge transfer, mechanism and toxicity assessment insights DOI

Haiping Liu,

Zhiwei Liu, Li Guo

et al.

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: 459, P. 116063 - 116063

Published: Oct. 5, 2024

Language: Английский

Citations

3
Synergistic uranium extraction, organic degradation, and electricity generation by a self-driven photoelectrochemical system with TNR/Si PVC photoanode and copper foam cathode DOI

Xijun Fu,

Yining Lu,

Xianglin Zhou

et al.

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 358, P. 130437 - 130437

Published: Nov. 7, 2024

Language: Английский

Citations

3
Ultrafast Photoassisted Capture of Uranium over Cu2O/CuO Heterojunction Enabled by Rapid Interfacial Electron Transfer DOI

Huan‐Huan Liu,

Hongliang Guo,

Daming Huang

et al.

ACS Materials Letters, Journal Year: 2024, Volume and Issue: 7(1), P. 295 - 303

Published: Dec. 19, 2024

Photoassisted capture of uranium provides a promising strategy for the sustainable utilization nuclear energy. Herein, we constructed Cu2O/CuO heterojunctions in situ by wet-etching method, showing ultrafast reaction kinetics and photocatalytic activity U(VI) reduction. In 8 ppm uranium-containing wastewater, exhibited remarkable extraction efficiency 94.6% within 10 min under irradiation, which exceeded most recently reported photocatalysts. The rate constant was 5.8-time larger than that pure Cu2O. A mechanism study indicated photogenerated electrons reduced CuO species created oxygen vacancy during photocatalysis process, strengthened binding UO22+. rapid electron transfer over heterojunction interfaces enhanced UO22+ strength formed accounted kinetics.

Language: Английский

Citations

0