Extended H-bonds/π-bonds networks for boosting electron transfer over polydopamine-covered nanocellulose/g-C3N4 toward efficient photocatalytic H2O2 production

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 349, P. 123872 - 123872

Published: April 24, 2024

Language: Английский

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Modulating structural oxygen/crystallinity enables ambient cascade photo‐upgrading of biomass saccharides to lactic acid

Carbon Energy, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 7, 2025

Abstract Photocatalytic transformation of biomass into biofuels and value‐added chemicals is great significance for carbon neutrality. Metal‐free nitride has extensive applications but with almost no absorption utilization near‐infrared light, accounting 50% sunlight. Here, a molten salt‐assisted in‐plane “stitching” interlayer “cutting” protocol developed constructing highly crystalline catalyst containing structural oxygen (HC‐CN). HC‐CN efficient the photothermal cascade biomass‐derived glucose lactic acid (LA) an unprecedented yield (94.3%) at 25°C under full‐spectrum light irradiation within 50 min, which also applicable to quantitatively photo‐upgrading various saccharides. Theoretical calculations expound that light‐induced glucose‐to‐catalyst charge transfer can activate C β –H bond promote rate‐determining step intramolecular hydrogen shift in glucose‐to‐fructose isomerization. Meanwhile, introduced not only facilitate local electric field formation achieve rapid transport/separation regulate selective •O 2 − generation oriented C3–C4 cleavage fructose narrow energy band gap broaden range HC‐CN, contributing enhanced LA production without exogenous heating. Moreover, recyclable exhibits negligible environmental burden low consumption, as disclosed by life cycle assessment. Tailored construction adsorption versatile reaction sites provides reference implementing multi‐step organic conversion processes mild conditions.

Language: Английский

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Plasmonic quantum dots modulated nano-mineral toward photothermal reduction of CO2 coupled with biomass conversion

Nano Research, Journal Year: 2024, Volume and Issue: 17(6), P. 5061 - 5072

Published: March 4, 2024

Language: Английский

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Catalyzed carbon-based materials for CO₂-battery utilization

Energy Materials, Journal Year: 2025, Volume and Issue: 5(4)

Published: Jan. 23, 2025

Increasing atmospheric CO2 levels and global carbon neutrality goals have driven interest in technologies that both mitigate emissions provide sustainable energy storage solutions. Metal-carbon dioxide (M-CO2) batteries offer significant promise due to their high density potential utilize CO2. A key challenge advancing M-CO2 lies optimizing CO2-breathing cathodes, which are essential for adsorption, diffusion, conversion. Carbon-based cathodes play a critical role facilitating redox batteries, owing cost-effectiveness, conductivity, tunable microstructure, porosity. However, there is lack of current systematic understanding the relationship between structure, composition, catalytic properties carbon-based as well impact on overall efficiency, stability, durability batteries. In this review, we will give an insightful review analysis recent advances various materials, including commercial carbons, single-atom catalysts, transition metal/carbon composites, metal-organic frameworks, etc. , focusing structure-function-property relationships. comprehensive pivotal played by materials optimization strategies be provided. Moreover, future perspectives research suggestions presented advance development innovation

Language: Английский

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Z-Scheme Heterojunction CdIn₂S₄/BiVO₄ with a Spherical Structure for Photocatalytic CO₂ Reduction

ACS Applied Nano Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 13, 2025

Language: Английский

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Single-atom Ru modified flake g-C3N4 enhances photogenerated electron transport for rapid degradation of tetracycline antibiotics: Non-radical mechanism and ecotoxicity studies

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 499, P. 156572 - 156572

Published: Oct. 11, 2024

Language: Английский

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Triazole Drives Hole Localization and Superoxide Radical Formation for Enhancive Photocatalytic Cascade Isomerization/C─C Bond Scission of Biomass to Lactic Acid

Small, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 31, 2025

Chemocatalytic synthesis of lactic acid (LA) from biomass sugars involves heat-absorbing multistep cascade reactions mediated by different active sites, often encountering unsatisfactory selectivity. Here, a hole-localized carbon nitride-based photocatalyst (C-CNN) is constructed covalent binding heptazine and triazole skeleton via C─N bonds further conjugated interaction with activated carbon, achieving the complete conversion various to LA (up 98.6% selectivity) at room temperature for 2 h. The introduced electron donor in C-CNN can not only enhance adsorption sugar enhanced aldose-to-ketose isomerization over localized hole (Lewis acid) on skeleton, but also modulate valence band oxidation circumvent formation •OH •O2 ‒ selective C3‒C4 cleavage ketose, thus realizing exclusive LA. Moreover, near-infrared light absorption endowed supply sufficient interface photothermal effect ambient production. Life cycle assessment shows that photocatalytic system has good prospects industrialization terms both energy environment. This work offers novel insights into multidirectional utilization solar value-added through rational modulation sites.

Language: Английский

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Steering K/C dual sites to orient Lewis acid/oxygen species for photo-upgrading of biomass sugars into lactic acid

Rare Metals, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Language: Английский

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Enhanced nitrogen vacancy density induced by sulfur doping on carbon nitride facilitates selective lactic acid production

Molecular Catalysis, Journal Year: 2025, Volume and Issue: 576, P. 114957 - 114957

Published: Feb. 26, 2025

Language: Английский

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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, Journal Year: 2025, Volume and Issue: unknown, P. 125294 - 125294

Published: March 1, 2025

Language: Английский

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