Weakened Interfacial Hydrogen Bond Connectivity Drives Selective Photocatalytic Water Oxidation toward H₂O₂ at Water/Brookite-TiO₂ Interface

Journal of the American Chemical Society, Год журнала: 2024, Номер 146(9), С. 6084 - 6093

Опубликована: Фев. 22, 2024

The formation of H2O2 through the two-electron photocatalytic water oxidation reaction (WOR) is significant but encounters competition with four-electron O2 evolution reaction. Recent studies showed a crystal-phase dependence in selectivity, where high purity brookite TiO2 (b-TiO2) exhibits remarkable selectivity contrast to common rutile phase (r-TiO2). However, origin such structure-induced preference remains elusive, primarily due complexities associated solid–liquid interface system and excited-state chemistry. Herein, we conducted comprehensive investigation into mechanism WOR at water/b-TiO2(210) water/r-TiO2(110) interfaces, employing first-principles molecular dynamics simulations microkinetic analyses. Intriguingly, our results reveal that intrinsic catalytic ability b-TiO2(210) itself does not enhance compared r-TiO2(110). Instead, it weakened interfacial hydrogen bond connectivity, modulated by herringbone-like local atomic structure surface, determines selectivity. Specifically, this H-bond connectivity (i.e., low density) interface, owing strong adsorption distinct orientation, can stabilize OH• radical inhibit its deprotonation, leading an improved By contrast, relatively established over r-TiO2(110) accelerates deprotonation OH•, coverage being 3 orders magnitude lower than interface. This study quantitatively demonstrates (water liquid/solid significantly influences insight may offer rational approach

Язык: Английский

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Artificial intelligence interventions in 2D MXenes-based photocatalytic applications

Coordination Chemistry Reviews, Год журнала: 2025, Номер 529, С. 216460 - 216460

Опубликована: Янв. 24, 2025

Язык: Английский

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Structurally and Surficially Activated TiO2 Nanomaterials for Photochemical Reactions

Nanoscale, Год журнала: 2024, Номер unknown

Опубликована: Янв. 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.

Язык: Английский

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Inorganic/organic hybrid interfacial internal electric field modulated charge separation of resorcinol-formaldehyde resin for boosting photocatalytic H2O2 production

Chemical Engineering Journal, Год журнала: 2024, Номер 497, С. 154886 - 154886

Опубликована: Авг. 23, 2024

Язык: Английский

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Dual-channel synthesis of H₂O₂via photoelectrocatalytic water oxidation and oxygen reduction over a TaON/Ta₃N₅/CuI/Cu foam electrode

Catalysis Science & Technology, Год журнала: 2024, Номер 14(5), С. 1266 - 1278

Опубликована: Янв. 1, 2024

A novel type-II heterojunction TaON/Ta 3 N 5 /CuI powder is loaded on the surface of Cu foam by electrophoresis assisted one-step calcination, which used for synthesis H 2 O photoelectrocatalysis (PEC).

Язык: Английский

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The co-catalyst effect of NiSe2 supporter: Boost photocatalytic hydrogen evolution efficiency of TiO2

Separation and Purification Technology, Год журнала: 2024, Номер 353, С. 128492 - 128492

Опубликована: Июнь 18, 2024

Язык: Английский

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2D/2D Mo₂CT_x/g-C₃N₄ with a strong coupling interface via one-step NH₄Cl-assisted calcination for enhanced photocatalytic hydrogen production

Catalysis Science & Technology, Год журнала: 2024, Номер 14(19), С. 5731 - 5738

Опубликована: Янв. 1, 2024

A strategy of constructing 2D/2D Mo 2 CT x /g-C 3 N 4 photocatalyst with strong coupling interface via a one-step NH Cl-assisted method by in situ growing g-C nanosheets on surface for rapid electron transfer and boosted H -evolution activity.

Язык: Английский

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Visible-light responsive Z-scheme Ti3C2 MXene/In2S3/CeO2 heterojunction for enhanced photocatalytic water purification

Materials Science in Semiconductor Processing, Год журнала: 2025, Номер 191, С. 109379 - 109379

Опубликована: Фев. 14, 2025

Язык: Английский

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MXene-Based Materials for Photocatalytic Water Splitting

Clean Energy Production Technologies, Год журнала: 2025, Номер unknown, С. 155 - 188

Опубликована: Янв. 1, 2025

Язык: Английский

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Synergistic enhancement of hydrogen peroxide generation: WO₃ photocatalyst modified with MXene and Au nanoparticles under visible light

Catalysis Science & Technology, Год журнала: 2024, Номер 14(12), С. 3502 - 3513

Опубликована: Янв. 1, 2024

Summary illustrating the mechanism of H 2 O generation by WO 3 /Au/MXene under visible light irradiation.

Язык: Английский

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