Applied Catalysis A General, Journal Year: 2024, Volume and Issue: unknown, P. 120030 - 120030
Published: Nov. 1, 2024
Language: Английский
ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
In the pursuit of high-selective oxidation 5-hydroxymethylfurfural (HMF) to valuable derivatives such as 5-hydroxymethylfuroic acid (HMFCA), 5-formyl-2-furanoic (FFCA), and furan-2,5-dicarboxylic (FDCA), we have developed a diethylenetriamine pentaacetic (DTPA)-assisted strategy construct highly effective photothermal catalyst with maximized Ag–CeO2 interfaces rich oxygen vacancies. Under optimal reaction conditions, this achieves remarkable yields 99% for HMFCA, FFCA turnover frequency (TOF) 163 h–1, 98% FDCA. Combined theoretical calculations series characterization analyses reveal that superior performance is due unique properties vacancies, which enhance electron transport synergistically catalytic activity silver clusters. contrast other photocatalytic systems HMF, work showcases high selectivity in HMF FFCA, These findings not only elucidate mechanisms behind selective but also offer promising approach directional photosynthesis high-purity chemicals related applications.
Language: Английский
Citations
2
Nanoscale, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
This review highlights recent advancements in TiO 2 photocatalysts, emphasizing key strategies to enhance their performance for environmental remediation and energy conversion technologies.
Language: Английский
Citations
15
Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 29, 2025
Photocatalytic upcycling of waste polyolefins into value-added chemicals provides promise in plastic management and resource utilization. Previous works demonstrate that can be converted carboxylic acids, with CO2 as the final oxidation product. It is still challenging to explore more transformation products, particularly mild-oxidation products such alcohols, because their instability compared polymer substrates, which are prone during catalytic reactions. In this work, we propose an efficient strategy regulate product type through precise control radicals, intermediates, reaction paths. Taking commonly used photocatalyst C3N4 example, its major acids CO2. When MoS2 introduced construct a Z-scheme heterostructure, gas significantly reduced alcohols appear high yield 1358.8 μmol gcat-1 selectivity up 80.3%. This primarily attributed presence •OH radicals from oxygen reduction, acting key role alcohol formation while simultaneously suppressing competing pathways •O2- 1O2, thus reducing overoxidation products. The β-scission C-C bonds chains generates intermediate alkyl species, followed by combination produce methanol, energetically favorable for MoS2/C3N4. contrast, species couple form formic acid, C3N4. work new approaches controlling types offers insights involved polyolefin photorefinery.
Language: Английский
Citations
1
Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Abstract Traditional H 2 O photocatalysis primarily depends on photoexcited electrons and holes to drive oxygen reduction water oxidation, respectively. However, singlet ( 1 ), often underappreciated, plays a pivotal role in production. Meanwhile, photocatalytic biomass conversion has attracted attention, yet studies combining synthesis with valorization remain rare typically yield low‐value products. Herein, strategy of furfuryl alcohol (FFA) coupled the efficient co‐production is reported, enabled by covalent organic frameworks (COFs) induced, ‐participated Achmatowicz rearrangement. This study introduces polyimide‐based COF‐N 0‐3 tailored nitrogen content, representing an unprecedently platform for Remarkably, reducing content COF enhances production, significantly boosting generation rate. In FFA, primary pathway production rearrangement, achieving rate ten times higher than that reliant reaction pure water, reaching 4549 µmol g⁻¹ h⁻¹. Mechanism revealed selectively engaged bypassing hole oxidation trigger producing valuable 6‐hydroxy‐(2H)‐pyranone 99% 92% selectivity. work establishes coupling simultaneous biochemicals, offering transformative approach sustainable photocatalysis.
Language: Английский
Citations
1
ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 5339 - 5369
Published: March 17, 2025
Language: Английский
Citations
1
Green Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 1, 2025
Under light irradiation, CDs act as electron reservoirs for Ru NPs, thereby enhancing their hydrogenation activity.
Language: Английский
Citations
0
ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 13, 2025
Language: Английский
Citations
0
Science China Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 12, 2025
Language: Английский
Citations
0
Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 28, 2025
The selective oxidation of benzyl alcohols to the corresponding aldehydes is a highly desirable transformation, but significant challenges remain. Herein, we report simultaneous-promotion strategy for redox capacities that involves fabrication an environmentally friendly, lead-free Cs3Sb2Br9 nanocrystals (NCs)-based Z-scheme heterojunction. NCs were grown on covalent triazine framework (CTF) nanosheets through ligand-assisted reprecipitation. resulting CTF@Cs3Sb2Br9 consisted homogeneous (15 nm) attached surface CTF. Importantly, nanocomposite significantly enhanced spatial charge separation, thereby in unprecedented photocatalytic efficiency and selectivity alcohol. Especially, exhibited 100% up 66.4% conversion benzaldehyde alcohol under ultraviolet light illumination. These results exceed previously reported conversions reactions therefore broaden applications friendly perovskite-based photocatalysts.
Language: Английский
Citations
0
Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown
Published: March 11, 2025
Abstract Traditional H 2 O photocatalysis primarily depends on photoexcited electrons and holes to drive oxygen reduction water oxidation, respectively. However, singlet ( 1 ), often underappreciated, plays a pivotal role in production. Meanwhile, photocatalytic biomass conversion has attracted attention, yet studies combining synthesis with valorization remain rare typically yield low‐value products. Herein, strategy of furfuryl alcohol (FFA) coupled the efficient co‐production is reported, enabled by covalent organic frameworks (COFs) induced, ‐participated Achmatowicz rearrangement. This study introduces polyimide‐based COF‐N 0‐3 tailored nitrogen content, representing an unprecedently platform for Remarkably, reducing content COF enhances production, significantly boosting generation rate. In FFA, primary pathway production rearrangement, achieving rate ten times higher than that reliant reaction pure water, reaching 4549 µmol g⁻¹ h⁻¹. Mechanism revealed selectively engaged bypassing hole oxidation trigger producing valuable 6‐hydroxy‐(2H)‐pyranone 99% 92% selectivity. work establishes coupling simultaneous biochemicals, offering transformative approach sustainable photocatalysis.
Language: Английский
Citations
0