Polymer Polyaniline Modified Bi24O31Br10 for Promoting Photocatalytic N2 Reduction

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Catalysis Letters Pub Date : 2025-03-14 DOI:10.1007/s10562-025-04988-9

Jianli Chen, Xiang Li, Chengming Zhang, Shuoshuo Zang, Xiufang Wang, Hewen Liu

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引用次数: 0

Abstract

Compared to traditional energy-intensive ammonia (NH₃) production methods, photocatalytic nitrogen (N₂) reduction offers significant energy savings. However, the complex kinetics and high reaction barriers have hindered its development. In this study, a novel Bi₂₄O₃₁Br₁₀/polyaniline (Bi₂₄O₃₁Br₁₀/PANI) composite photocatalyst was synthesized using a simple solvothermal and chemical oxidation polymerization method. Aniline was oxidized and deposited onto the surface of Bi₂₄O₃₁Br₁₀ nanosheets. The Bi₂₄O₃₁Br₁₀/PANI composite demonstrated better visible-light absorption, and more efficient transfer of photoexcited carriers than pure Bi₂₄O₃₁Br₁₀, resulting in superior photocatalytic N₂ fixation performance. The optimized Bi₂₄O₃₁Br₁₀/PANI composite attained an NH₃ production yield of 245.26 µmol g⁻¹ , approximately 7.0 times higher than pure Bi₂₄O₃₁Br₁₀. This study provides a new design of inorganic-polymer hybrid photocatalysts for efficient photocatalytic nitrogen fixation.

Graphical abstract

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聚合物聚苯胺改性Bi24O31Br10促进光催化N2还原

与传统的高能耗氨（NH3）生产方法相比，光催化氮（N2）还原具有显著的节能效果。然而，复杂的反应动力学和较高的反应障碍阻碍了其发展。本研究采用简单的溶剂热法和化学氧化聚合法制备了一种新型Bi24O31Br10/聚苯胺（Bi24O31Br10/PANI）复合光催化剂。苯胺被氧化并沉积在Bi24O31Br10纳米片表面。与纯Bi24O31Br10相比，Bi24O31Br10/PANI复合材料具有更好的可见光吸收和更有效的光激发载流子转移，从而具有更好的光催化固氮性能。优化后的Bi24O31Br10/PANI复合材料NH3产率为245.26µmol g−1，约为纯Bi24O31Br10的7.0倍。本研究提供了一种新型的无机-聚合物杂化光催化剂，用于高效的光催化固氮。图形抽象

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来源期刊

Catalysis Letters 化学-物理化学

CiteScore

5.70

自引率

3.60%

发文量

327

审稿时长

1 months

期刊介绍： Catalysis Letters aim is the rapid publication of outstanding and high-impact original research articles in catalysis. The scope of the journal covers a broad range of topics in all fields of both applied and theoretical catalysis, including heterogeneous, homogeneous and biocatalysis. The high-quality original research articles published in Catalysis Letters are subject to rigorous peer review. Accepted papers are published online first and subsequently in print issues. All contributions must include a graphical abstract. Manuscripts should be written in English and the responsibility lies with the authors to ensure that they are grammatically and linguistically correct. Authors for whom English is not the working language are encouraged to consider using a professional language-editing service before submitting their manuscripts.