Regulating concentration of surface oxygen vacancies in Bi2MoO6/Bi-MOF for boosting photocatalytic ammonia synthesis

Journal of Catalysis, Journal Year: 2024, Volume and Issue: 433, P. 115489 - 115489

Published: April 10, 2024

Language: Английский

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Bi2MO6 (M=Mo, W) Aurivillius Oxides for Efficient Photocatalytic N2-to-NH3 Conversion: A perspective review

Inorganic Chemistry Frontiers, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

This summary describes and elucidates an enhanced strategy for photocatalytic nitrogen fixation over Bi 2 MO 6 (M = Mo, W)-based catalysts points out the development prospects of fixation.

Language: Английский

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Schottky Junctions with Bi@Bi2MoO6 Core-Shell Photocatalysts toward High-Efficiency Solar N2-to-Ammonnia Conversion in Aqueous Phase

Nanomaterials, Journal Year: 2024, Volume and Issue: 14(9), P. 780 - 780

Published: April 30, 2024

The photocatalytic nitrogen reduction reaction (NRR) in aqueous solution is a green and sustainable strategy for ammonia production. Nonetheless, the efficiency of process still has wide gap compared to that Haber–Bosch one due difficulty N2 activation quick recombination photo-generated carriers. Herein, core-shell Bi@Bi2MoO6 microsphere through constructing Schottky junctions been explored as robust photocatalyst toward NH3. Metal Bi self-reduced onto Bi2MoO6 not only spurs electron hole separation owing junction at interface but also promotes adsorption active sites synchronously. As result, yield N2-to-ammonia conversion reaches up 173.40 μmol g−1 on photocatalysts, much two times bare Bi2MoO6. This work provides new design decarbonization by utilization renewable energy sources.

Language: Английский

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Regulating the Electronic Structure of Biobr by Cu-Doping to Promote Efficient Photocatalytic Nitrogen Fixation Reaction

Published: Jan. 1, 2025

Abstract: Element doping is critical in regulating the electronic structure to enhance N2 adsorption, opening up new possibilities for achieving highly efficient photocatalytic nitrogen reduction reactions (pNRR). In this study, we successfully prepared Cu-doped BiOBr (Cu-BiOBr) operating a simple solvothermal method. Density Functional Theory (DFT) calculations and experimental investigations were employed explore how Cu influences performance of pNRR over BiOBr. The DFT analysis indicates that alters structure, lowers energy barrier reaction, narrows bandgap. This adjustment leads remarkable NH3 production rate 466.3 μmol⋅gcat−1⋅h−1 without need sacrificial agents 2% Cu-BiOBr sample. addition, based on findings in-situ FTIR, detailed mechanism adsorption/activation hydrogenation reaction N ≡ bonds was proposed. research introduces prospective way designing transition metal-doped catalysts with regulated structures pNNR, which has significant implications advancing other material systems.

Language: Английский

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Regulating the electronic structure of BiOBr by Cu-doping to promote efficient photocatalytic nitrogen fixation reaction

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132501 - 132501

Published: March 1, 2025

Language: Английский

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Construction and Embedding of Oxygen Vacancies in Organic-Inorganic S-scheme Heterojunctions for Optimizing the Photocatalytic Degradation Performance of PDI-Nb/BiVO4 towards Antibiotics

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125141 - 125141

Published: Feb. 1, 2025

Language: Английский

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In situ-engineered interfaces in copper oxynitride (Cu_xO_yN_z) systems with synergistic properties for photocatalytic H₂ production and N₂ fixation applications

Journal of Materials Chemistry C, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Compositional engineering of Cu/oxide/nitride-rich systems, exhibiting synergistic plasmonic properties and band alignments for multiplex photocatalysis, is described.

Language: Английский

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Two-dimensional Nanomaterial-based Heterogeneous Catalysts for Sustainable Ammonia Production

Royal Society of Chemistry eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 259 - 278

Published: April 4, 2025

Two-dimensional (2D) nanomaterials have attracted tremendous attention from researchers working in the field of heterogeneous catalysis. Owing to unique advantages offered by 2D nanomaterials, such as high surface area, abundant reaction sites, improved electrical and optical properties, excellent support materials, etc., they been widely utilized synthesizing several hybrid materials different catalytic applications. This chapter focuses, particular, on application nanomaterial-based catalysts sustainable ammonia (NH3) synthesis. In recent years, research has delved into establishing new technologies for green NH3 synthesis a replacement conventional Haber–Bosch process. this chapter, three approaches, namely, photocatalysis, electrocatalysis, photoelectrocatalysis, are discussed detail. Some examples composites, doped systems, defect-engineered presented provide glimpse these processes. Finally, summary progress an outline future directions production discussed.

Language: Английский

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Emerging Bi-based perovskites photocatalysts for degradation of pharmaceutical compounds: Insights into active sites, potential industrial application, and new approaches

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116750 - 116750

Published: April 1, 2025

Language: Английский

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Photocatalytic Transformation of Organic Pollutants and Remediation Strategies of Carbon Emissions and Nitrogen Fixation in Inland Water

Materials Today Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 100103 - 100103

Published: May 1, 2025

Language: Английский

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