Carbon Doping in Crystalline C₃N₅ Photocatalyst: Unraveling C-H Functional Groups for Near-Unity Electron-Hole Utilization toward Ameliorated Dual-Functional H₂O₂ and Benzaldehyde Co-Production

Applied Catalysis B Environment and Energy, Год журнала: 2025, Номер unknown, С. 125294 - 125294

Опубликована: Март 1, 2025

Язык: Английский

---

Mo-W18O49/ZnIn2S4 Composites Synthesized by Metal Doping for Photocatalytic Hydrogen Evolution

Molecules, Год журнала: 2025, Номер 30(7), С. 1563 - 1563

Опубликована: Март 31, 2025

Utilizing two or more semiconductor materials with distinct geometric and electronic energy arrangements at the nanoscale to construct heterostructures is an important means for developing high-performance catalysts photocatalytic hydrogen evolution. In this study, ZnIn2S4 serves as primary catalyst carrier, while Mo-W18O49 functions cocatalyst supported on surface of ZnIn2S4. A series ZnIn2S4/Mo-W18O49 heterojunction composite were synthesized through a straightforward hydrothermal method. The photocatalyst demonstrates exceptional evolution activity. Notably, loading 10%, achieves optimal evolution, yielding 2592.8 μmol g−1, which 31 times greater than that pure Further characterized results samples showed appropriate mass ratio can increase electron transfer rate, facilitates reducing recombination probability photo-generated electrons holes, thus improving efficiency.

Язык: Английский

---

Selective Photocatalysis of Benzyl Alcohol Valorization by Cocatalyst Engineering Over Zn₂In₂S₅ Nanosheets

Advanced Functional Materials, Год журнала: 2024, Номер unknown

Опубликована: Дек. 26, 2024

Abstract Photocatalytic conversion of benzyl alcohol (BA) is a promising means to coproduce H 2 with value‐added chemicals. However, there lack an efficient strategy regulate the selectivity BA products. Here, by simple cocatalyst engineering technique, selective over Zn In S 5 nanosheets (ZIS) maneuvered. Two types cocatalysts, i.e., Pt and Cd, are photo‐deposited onto ZIS that can shift diverse products, namely, benzaldehyde (BAD) Cd carbon‐carbon (C─C) coupling compounds. Mechanistic studies indicate has high reducing capacity convert BAD back ketyl radical (C 𝛼 radical), favoring construction C─C bonds. Pt, however, facilitates generation C radicals but energetically unfavorable for their reactions, resulting in as main product. Theoretical calculation reveals distinct catalytic behaviors stem from different electronic structures govern adsorption strength reaction intermediates energy barriers step. This work not only addresses challenge regulation also brings fresh mechanistic insights into role cocatalysts.

Язык: Английский

---

Plastic‐to‐Treasure: Innovative advances in photo/electro‐catalytic upcycling technologies for commodity chemicals and fuels

EcoEnergy, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 27, 2024

Abstract Plastics are one of the greatest inventions 20 th century that bring convenience to mankind. Owing commercialization plastics, plastic pollution has become a petrifying environmental issue as demand for products overwhelms recycling rates. However, conventional methods (i.e., pyrolysis and gasification) require high pressure temperature treat waste plastic, resulting in ineluctably energy‐waste secondary pollution. On contrary, selective catalylic technologies provide green approach degrade plastics whilst also reforming them into value‐added chemicals fuels. In this review, innovative approaches, including photocatalysis, electrocatalysis, photoelectrocatalysis, have been comprehensively reviewed from perspective sustainable use resources. Distinctive emphasis is placed on highlighting merits each technology enlightening state‐of‐the‐art modification strategies strengthen pillars catalytic activities. The transformation with above techniques elaborated terms reaction conditions various substrates. With feasibility breakdown displayed study, insights challenges prospects upcycling underscored well facilitate society moving toward circular economy.

Язык: Английский

---