Sea urchin-like covalent organic frameworks/TiO2 heterostructure for enhanced photocatalytic CO2 conversion

Journal of Colloid and Interface Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

---

Accelerated Water Oxidation Kinetics Induced by Oxygen Vacancies in the BiVO₄/C₃N₄ S-Scheme Heterojunction for Enhanced Photocatalytic CO₂ Reduction

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 5, 2025

The solar-driven photocatalytic reduction of CO2 into fuels using a C3N4-based photocatalyst has shown great application potential in addressing challenges related to energy and emission. However, this process suffers from severe charge recombination sluggish H2O oxidation kinetics, resulting low efficiency. In study, 2D/2D S-scheme heterojunction by combining oxygen vacancy-rich BiVO4 nanoflakes with C3N4 nanosheets (denoted as Ov-BVO/CN) was fabricated mitigate the aforementioned issues, where serves water booster center. By leveraging synergistic effects lamellar morphology an charge-transfer pathway, Ov-BVO/CN achieves efficient separation while maintaining maximized redox capabilities. Moreover, theoretical calculations demonstrated that Ov on surface reverses rate-limiting step reducing its barrier, thereby accelerating reaction kinetics. optimized demonstrates remarkably improved evolution rates for CO (13.8 μmol g–1 h–1) CH4 (5.9 h–1), which are approximately 3.8 3.5 times higher than those CN under visible-light irradiation, respectively. This work highlights design fabrication highly heterostructure photocatalysts photoreduction.

Язык: Английский

---

Modulating PCET Process via Optimizing Local Microenvironment of CdS@NiV-LDH Heterojunction for CO2 Reduction to Tunable Green Syngas Photosynthesis

Chemical Science, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

A novel CdS@NiV-LDH heterojunction with an optimized electric field microenvironment and reaction has been constructed for the photocatalytic reduction of CO 2 to tunable green syngas by rationally modulating PCET process.

Язык: Английский

---

Selectivity studies and modification strategies for high-efficiency photocatalytic CO₂ reduction to methanol products

Journal of Materials Chemistry C, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Research on photocatalytic reduction of carbon dioxide (CO 2 ) has extensively progressed.

Язык: Английский

---

Prolonging Lifetime of Hot Electrons Integrated with Microenvironment Regulation on Atomically-Dispersed Amphiphilic Quantum Dots for Photo-Reductive Hydroarylation of Alkenes in Aqueous Solution

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125295 - 125295

Опубликована: Март 1, 2025

Язык: Английский

---

Enhanced CO2 Reduction via S-Scheme Heterojunction of Amorphous/Crystalline Metal-free Carbon Nitride Photocatalysts

Chemical Engineering Journal, Год журнала: 2024, Номер 500, С. 156777 - 156777

Опубликована: Окт. 17, 2024

Язык: Английский

---

MOF-Derived Hollow C, N-Doped Co₃O₄ Dodecahedral Nanostructure Enwrapped with MgIn₂S₄ Nanosheets for Enhanced Photocatalytic N₂ Reduction

Inorganic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Дек. 25, 2024

Design of hierarchical hollow nanoheterostructure materials through interfacial and defect engineering is an innovative approach for achieving optimal charge separation dynamics photon harvesting efficiency. Herein, we have described a facile technique to fabricate MOF-derived C, N-doped-Co3O4 (C, N-Co3O4) dodecahedral particles enwrapped with MgIn2S4 nanosheets enhanced N2 reduction performance. ZIF-67 was initially used as sacrificial template prepare N-Co3O4 using carbonization route followed by low-temperature calcination treatment. The controlled synthetic protocol not only led nonmetal doping but also produced interwoven carbon matrix that improved the photoelectron mobility. Density functional theory calculations further substantiated creation atomic defects substitution C at tetrahedral Co2+ sites N lattice O2– Co3O4 structure. subsequently coupled N-Co3O4/MgIn2S4 [C, N-CM (X)] p–n heterojunctions. photocatalytic study revealed NH4+ ion production activity (1:1) material (334 μmol g–1 h–1) significantly higher (4–10 times) than pure components. composite ascribed its distinct topological features, superior carrier dynamics, afforded large number surface-active sites.

Язык: Английский

---

Recent advances in rational design, synthesis and application of metal–organic frameworks as visible-light-driven photocatalysts

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(20), С. 6794 - 6852

Опубликована: Янв. 1, 2024

This review comprehensively summarizes the advancements in MOF photocatalysts under visible light, covering construction, optimization and application. The existing challenges future prospects this area are also discussed.

Язык: Английский

---

Regulating electron-hole pairs of g-C3N4 efficiently separated and fully utilized for photosynthesis of H2O2 under visible light

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 161409 - 161409

Опубликована: Март 1, 2025

Язык: Английский

---

Sm3+-doped Bi2MoO6 with enhanced photocatalytic CO2 reduction performance originated from abundant oxygen vacancies

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114397 - 114397

Опубликована: Март 1, 2025

Язык: Английский

---