Accelerated Charge Transfer through Interface Chemical Bonds in MoS₂/TiO₂ for Photocatalytic Conversion of Lignocellulosic Biomass to H₂

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(29), P. 13766 - 13774

Published: July 5, 2024

Solar photocatalytic H

Language: Английский

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High-entropy materials for photocatalysis

Nano Materials Science, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

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Surface Engineering of 2D Metal‐Porphyrin Metal‐Organic Frameworks Z‐Scheme Heterostructure for Boosting and Stable Photocatalytic Hydrogen Evolution

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

Published: Jan. 7, 2025

Abstract How to improve the stability and activity of metal‐organic frameworks is an attractive but challenging task in energy conversion pollutant degradation framework materials. In this paper, a facile method developed by fabricating titanium dioxide nanoparticles (TiO 2 NPs) layer on 2D copper tetracarboxylphenyl‐metalloporphyrin with zinc ions as linkers (ZnTCuMT‐X, “Zn” represented linkers, first “T” (TCPP), “Cu” Cu 2+ coordinated into porphyrin macrocycle, “M” frameworks, second TiO NPs layer, “X” added volume n‐tetrabutyl titanate ( X = 100, 200, 300 or 400)). It found that optimized ZnTCuMT‐200 showed greatly stably enhanced H generation, which ≈28.2 times 47.0 high those original ZnTCuM , respectively. Combined results free radical capture, X‐ray photoelectron spectra (XPS), electron spin resonance (ESR), theoretical calculation, direct Z‐scheme transfer mechanism achieved fully explain photocatalytic performance. demonstrates facilely designing heterostructures based MOFs modified inorganic semiconductor can be advantageous strategy for enhancing hydrogen evolution.

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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Enhanced Hydrogen Production via Piezo-Photocatalytic Water Splitting Using BaTiO3 Crystal Phase Engineering

Journal of Solid State Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 125251 - 125251

Published: Feb. 1, 2025

Language: Английский

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