Green Energy & Environment, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 1, 2024
Language: Английский
Energy & Fuels, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 9, 2025
The use of photocatalysis in conjunction with biomass presents an innovative and promising way to increase the sustainability chemical processes. In this work, a g-C3N4@AgFe2O4 heterojunction nanocomposite was prepared by facile sonication method subsequently modified sulfonic acid groups form new acidic photocatalyst enhanced photocatalytic activity. structure, surface composition, morphology, optical absorption features were studied using state-of-the-art characterization techniques. Visible-light-driven dehydration biomass-derived carbohydrates 5-hydroxymethylfurfural (HMF), as versatile platform compound, employed assess its catalytic property. Compared traditional homogeneous heterogeneous catalysts, reveled superior or equal activity production HMF from fructose only at low temperature (90 °C, 91% yield). easily recovered remained active recycle runs, approving good stability. Furthermore, developed protocol found be capable converting other feedstocks, such glucose, sucrose, maltose into respectable yields. Interestingly, work represents first example utilizing photocatalyst.
Language: Английский
Citations
13
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 496, P. 153772 - 153772
Published: July 6, 2024
In recent years, solar energy catalytic conversion of biomass increment has attracted more and attention due to its advantages saving environmental protection. However, standard semiconductor-based photocatalytic systems affected by the low solar-chemical efficiency obviously hinders development in view limited light harvesting abilities. The emergence photothermal materials not only extends absorption range spectrum (up full spectrum), but are also capable generating localized heating (generating high-energy hot carriers) trigger surface-catalyzed reactions and/or modulate reaction pathways, thus synergistically improving efficiency. Thus, catalysis combines positive aspects photocatalysis thermocatalysis, it is a promising technology for derivatives into value-added products. this work, we mainly introduce principle conversion, some applied situation various types substrates etc. Finally, solution strategies outlooks regarding proposed.
Language: Английский
Citations
13
Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 63(28)
Published: April 29, 2024
Abstract Solar‐driven upgrading of biomass‐derived 5‐hydroxylmethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA) holds great promise for sustainable production bio‐plastics and resins. However, the process is limited by poor selectivity sluggish kinetics due vertical coordination HMF at relatively strong metal sites. Here, we purposely developed a Cu(II) porphyrin framework featuring side‐chain incorporated urea linkages, denoted as TBUPP−Cu MOF, render weak hydrogen bond site flat adsorption via π–π stacking with benzene moiety. The unique configuration promotes approaching −CHO photoexcited ring towards kinetically thermodynamically favourable intermediate formation subsequent desorption. charge localisation orbital energy alignment enable selective activation O 2 over generate ⋅O − 1 instead highly oxidative H ⋅OH spin‐flip electron transfer, which drive ambient oxidation proximal −CHO. effective utilisation redox species circumvented over‐oxidation facilitate FDCA >90 % high turnover number 193 mol Cu −1 . facile purification high‐purity zero‐waste recycling intermediates durable catalyst feature MOF promising photo‐oxidation platform net‐zero biorefining organic transformations.
Language: Английский
Citations
8
Angewandte Chemie, Journal Year: 2024, Volume and Issue: 136(28)
Published: April 29, 2024
Abstract Solar‐driven upgrading of biomass‐derived 5‐hydroxylmethylfurfural (HMF) to 2,5‐furandicarboxylic acid (FDCA) holds great promise for sustainable production bio‐plastics and resins. However, the process is limited by poor selectivity sluggish kinetics due vertical coordination HMF at relatively strong metal sites. Here, we purposely developed a Cu(II) porphyrin framework featuring side‐chain incorporated urea linkages, denoted as TBUPP−Cu MOF, render weak hydrogen bond site flat adsorption via π–π stacking with benzene moiety. The unique configuration promotes approaching −CHO photoexcited ring towards kinetically thermodynamically favourable intermediate formation subsequent desorption. charge localisation orbital energy alignment enable selective activation O 2 over generate ⋅O − 1 instead highly oxidative H ⋅OH spin‐flip electron transfer, which drive ambient oxidation proximal −CHO. effective utilisation redox species circumvented over‐oxidation facilitate FDCA >90 % high turnover number 193 mol Cu −1 . facile purification high‐purity zero‐waste recycling intermediates durable catalyst feature MOF promising photo‐oxidation platform net‐zero biorefining organic transformations.
Language: Английский
Citations
5
Catalysts, Journal Year: 2024, Volume and Issue: 14(7), P. 447 - 447
Published: July 12, 2024
This comprehensive review covers recent advancements in utilizing various types of polymers and their modifications as photocatalysts for the removal pharmaceutical contaminants from water. It also considers that enhance photocatalytic properties other materials, highlighting dual role improving water purification efficiency. Over past decades, significant progress has been made understanding polymers, including organic, inorganic, composite efficacy degrading pharmaceuticals. Some most commonly used such polyaniline, poly(p-phenylene vinylene), polyethylene oxide, polypyrole, have reviewed detail. Physical modification techniques (mechanical blending extrusion processing) chemical (nanocomposite formation, plasma techniques, surface functionalization, cross-linking) discussed appropriate modifying order to increase activity. examines latest research findings, development novel polymer-based application compounds, well optimization strategies enhancing performance. Additionally, challenges future directions this field are guide further efforts.
Language: Английский
Citations
5
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 155891 - 155891
Published: Sept. 1, 2024
Language: Английский
Citations
5
ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 25, 2024
Language: Английский
Citations
4
Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: unknown
Published: Jan. 1, 2024
This study demonstrated that mixed halide perovskite MAPbBr x Cl 3− quantum dots effectively enhance photocatalytic efficiency for the selective oxidation of 5-hydroxymethylfurfural through controlled adjustment Br and ratios.
Language: Английский
Citations
3
Molecular Catalysis, Journal Year: 2025, Volume and Issue: 578, P. 115030 - 115030
Published: March 20, 2025
Language: Английский
Citations
0
Industrial Crops and Products, Journal Year: 2025, Volume and Issue: 230, P. 121058 - 121058
Published: April 22, 2025
Language: Английский
Citations
0