Boosting Photocatalytic Upcycling of Liquid Biomass into Biodiesel via Microenvironment Modulation

Advanced Energy Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 13, 2024

Abstract The rational design of a photocatalyst and its microenvironmental modulation is crucial in the heterogeneous photocatalysis process, yet relevant research on photocatalytic biodiesel synthesis not explored. Herein, based prediction density functional theory (DFT) calculations, highly efficient ternary biocompatible montmorillonite (Mt) nanocomposites S‐scheme heterojunction photocatalysts (g‐C 3 N 4 ‐TiO 2 @Mt, CTM) are successfully rationally designed. By modulating microenvironment production, CTM‐2 demonstrates exceptional catalytic performance stability, achieving record‐breaking yield 98.5%. Through ex/in situ X‐ray photoelectron spectroscopy (XPS), absorption near‐edge (XANES), theoretical formation revealed, which can generate an interface electric field (IEF) that provides intrinsic driving force for carrier migration enhances surface positivity. This boosts enrichment effect electronegative oleic acid (OA) carboxyl molecules, thus greatly enriching substrate concentration improving reaction microenvironment. Moreover, fourier transform infrared spectrometer (FT‐IR)/Raman together with electron paramagnetic resonance (EPR) further confirm key intermediates CH O• ester carbonyl (C═O), DFT calculations provide reference pathway, determined to be capable significantly reducing energy barrier rate‐determining step.

Language: Английский

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Floatable artificial leaf to couple oxygen-tolerant CO2 conversion with water purification

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: Jan. 2, 2025

Language: Английский

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Modulation of interface structure on titanium-based metal–organic frameworks heterojunctions for boosting photocatalytic carbon dioxide reduction

Journal of Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 685, P. 696 - 705

Published: Jan. 16, 2025

Language: Английский

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Topological Design of Floaters with Plug‐In Functions

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 19, 2025

Abstract Floaters with exposed surfaces are essential for applications in heterogeneous catalysis, microdetectors, and solar evaporation. Conventional floaters, however, rely on specific low‐density or hydrophobic materials, restricting their adaptability. This study introduces a topological design principle, enabling dense, hydrophilic materials to float stably water. The proposed cellular sheet (HCS) features water‐attractive substrate patterned crown‐shaped pore array, fabricated via digital light processing. These unique pores trap air effectively, providing exceptional buoyancy. modular of the HCS allows versatile plug‐in functionalities by utilizing as reservoirs functional beads. combination multi‐HCSs enables on‐water information encryption decryption. Furthermore, demonstrates potential supporting devices triboelectric nanogenerators, promising wave energy harvesting. work establishes platform designing adaptable floaters integrated functionalities, expanding utility areas, such interface carriers, devices, renewable collection.

Language: Английский

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Synergistic effect of sulfur vacancy, internal electric field and Mo-S bond toward highly-efficient charge utilization for MoS2/Sv-MnS/ZnIn2S4 photocatalysts

Journal of Alloys and Compounds, Journal Year: 2025, Volume and Issue: unknown, P. 180166 - 180166

Published: April 1, 2025

Language: Английский

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Enhanced photocatalytic CO2 reduction in floatable CMF/Bi2WO6/C3N4 gas-liquid-solid three-phase heterojunction system

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125395 - 125395

Published: April 1, 2025

Language: Английский

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Artificial Photothermal Synthesis of Hydrocarbons from CO₂ and H₂O

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 22, 2025

Abstract The excessive release of CO 2 from fossil fuel combustion has disrupted the carbon cycle, leading to elevated greenhouse gas levels. Converting into value‐added chemicals like CH 4 and C H not only offers a sustainable alternative fuels but also helps mitigate emissions. However, producing high‐energy hydrocarbons involves complex electron proton coupling, presenting significant kinetic challenges. Photothermal catalysis, which harnesses solar energy in light heat, emerges as promising method for efficient conversion hydrocarbons. This process reduces thermodynamic barriers protonation by enabling rapid transfer through thermal assistance. development photothermal catalysts capable absorbing light, generating electron–hole pairs, facilitating redox reactions is crucial enhancing efficiency selectivity. review highlights importance catalyst design, reaction conditions, reactor configuration, addresses lack comprehensive reviews on synergistic approach catalysis. By focusing precise design photogenerated heat mechanisms, this aims advance field, emphasizing its potential promote carbon‐neutral future.

Language: Английский

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A robust floating oxygen-doped graphitic carbon nitride sheet for efficient photocatalytic CO2 conversion

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 358, P. 130420 - 130420

Published: Nov. 7, 2024

Language: Английский

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The Reduced Barrier for the Photogenerated Charge Migration on Covalent Triazine‐Based Frameworks for Boosting Photocatalytic CO₂ Reduction Into Syngas

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 13, 2024

Abstract Photocatalytic CO 2 reduction together with hydrogen generation is a promising approach to generate syngas, the photogenerated electron migration from photosensitizers catalytic active sites rate‐determining step. Herein, an integrative strategy presented by covalently grafting metal complexes into donor–acceptor covalent triazine‐based frameworks. The are integrated photosensitizer units linkages form extended π ‐conjugated framework, which significantly reduces energy barrier for of charge carriers, resulting in high activity and durability photocatalytic syngas under visible light irradiation. H evolution amounts 1.5 h 1086 1042 µmol g −1 , respectively, greatly surpass those host‐guest counterparts. Furthermore, selective adsorption over N renders this system be effective production simulated flue gas. This study provides new approaches construct systems solar‐to‐chemical conversion.

Language: Английский

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Floatable Artificial Leaf to Couple Oxygen-Tolerant CO2 Conversion with Water-Purification

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 8, 2024

To enable open-environment application of artificial photosynthesis, the direct utilization environmental CO₂ via an oxygen-tolerant reductive procedure is necessary. Herein, we introduce in-situ growth strategy for fabricating two-dimensional heterojunctions between indium porphyrin metal-organic framework (In-MOF) and single-layer graphene oxide (GO). Upon illumination, In-MOF/GO heterostructure facilitates a tandem capture photocatalytic reduction on its hydroxylated In-node, prioritizing dilute even in presence air-level O₂. The photocatalyst was integrated with porous polytetrafluoroethylene (PTFE) membrane to construct floatable leaf. Through triphase reaction, leaf can remove aqueous contaminants from real water while efficiently reducing at low concentrations (10%, approximately concentration combustion flue gases) upon This study provides scalable approach construction devices conversion open environments.

Language: Английский

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