Synergistic plasmon resonance hybridization of iron-dispersed MoO3−x/MXene for enhanced nitrogen photothermal reduction

IF 3.5 3区工程技术 Q2 ENGINEERING, CHEMICAL

AIChE Journal Pub Date : 2025-01-29 DOI:10.1002/aic.18745

Ying Tang, Dongsheng Xie, Xiaomin Guo, Lining Fang, Hui Zeng, Zebao Rui

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引用次数: 0

Abstract

Plasmonic photochemical N₂ fixation has received widespread attention owing to the attractive plasmonic enhancement effects in improving solar-to-NH₃ conversion efficiency. However, the weak N₂ adsorption affinity in metallic plasmonic photocatalysts and insurmountable interfacial barriers in metal–semiconductor plasmonic photocatalysts lead to rapid charge carrier recombination instead of participating in N₂-to-NH₃ conversion. Herein, a photothermal catalyst Fe-dispersed MoO_3−x/MXene with synergistic plasmon resonance hybridization structure is fabricated for photothermal N₂ fixation. The hybrid plasmon resonance effects derived from MXene and MoO_3−x induce a strong optical response across the ultraviolet–visible-near-infrared range and generation of energetic charge carriers, and the induced photothermal effect further accelerates electron extraction, transport, and surface reaction kinetics. Moreover, the abundant oxygen vacancies and Fe sites can intensify the N₂ adsorption and donate the energetic electrons into the anti-bonding system for the stimulative NH coupling process. A high NH₃ formation rate of 87.1 μmol g⁻¹ h⁻¹ is achieved under solar-level illumination.

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来源期刊

AIChE Journal 工程技术-工程：化工

CiteScore

7.10

自引率

10.80%

发文量

411

审稿时长

3.6 months

期刊介绍： The AIChE Journal is the premier research monthly in chemical engineering and related fields. This peer-reviewed and broad-based journal reports on the most important and latest technological advances in core areas of chemical engineering as well as in other relevant engineering disciplines. To keep abreast with the progressive outlook of the profession, the Journal has been expanding the scope of its editorial contents to include such fast developing areas as biotechnology, electrochemical engineering, and environmental engineering. The AIChE Journal is indeed the global communications vehicle for the world-renowned researchers to exchange top-notch research findings with one another. Subscribing to the AIChE Journal is like having immediate access to nine topical journals in the field. Articles are categorized according to the following topical areas: Biomolecular Engineering, Bioengineering, Biochemicals, Biofuels, and Food Inorganic Materials: Synthesis and Processing Particle Technology and Fluidization Process Systems Engineering Reaction Engineering, Kinetics and Catalysis Separations: Materials, Devices and Processes Soft Materials: Synthesis, Processing and Products Thermodynamics and Molecular-Scale Phenomena Transport Phenomena and Fluid Mechanics.