提高NiS-Zn3In2S6/Bi2S3的载流子密度和空间解耦效率，促进胺的光催化无受体脱氢

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2025-04-21 DOI:10.1016/j.apsusc.2025.163325

Yuanqiao Wei , Ruifang Zhang , Wei Gao , Ningzhao Shang , Xiang Cheng , Yongjun Gao , Xin Zhou , Chun Wang , Shutao Gao

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引用次数: 0

摘要

通过光催化无受体脱氢（PAD）将胺转化为氢（H2）和亚胺是一种生产清洁能源和高附加值化学品的可行方法。然而，光催化剂的电荷载流子分离性能较差，以及包括亚胺氢化和 CC 偶联在内的副反应不可控，极大地阻碍了其发展。在此，我们开发了一种异质结光催化剂 NiS-Zn3In2S6/Bi2S3（Ni-ZIS/Bi），用于促进苄胺的 PAD 反应。与 Zn3In2S6 相比，由于光生电荷载流子的密度和空间去耦效力增强，Ni0.5%-ZIS/Bi1.2% 的 H2 和 N-亚苄基苄胺（NBBA）生成率分别提高了 12.4 倍和 5.9 倍。值得注意的是，NBBA 的选择性从 Zn3In2S6 的 28.5% 提高到 NiS0.5%-ZIS/Bi1.2% 的 98%。这项研究为 H2 生产与有机转化过程的合作耦合提供了新的视角。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Enhancing charge carrier density and spatial decoupling effectiveness of NiS-Zn3In2S6/Bi2S3 for boosting photocatalytic acceptorlessdehydrogenation of amines

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Enhancing charge carrier density and spatial decoupling effectiveness of NiS-Zn3In2S6/Bi2S3 for boosting photocatalytic acceptorlessdehydrogenation of amines

Photocatalytic Acceptorless Dehydrogenation (PAD) of amines to hydrogen (H₂) and imines is a promising approach to produce clean energy and high-value added chemicals. However, the poor charge carrier separation performance of photocatalyst and uncontrolled side reaction, including the imines hydrogenated and CC coupling, significantly hindered its development. Herein, we developed a heterojunction photocatalyst NiS-Zn₃In₂S₆/Bi₂S₃ (Ni-ZIS/Bi) for boosting the PAD reaction of benzylamine. Due to the enhanced density and spatial decoupling effectiveness of photogenerated charge carriers, Ni_0.5%-ZIS/Bi_1.2% exhibits 12.4-fold and 5.9-fold increase in production rate of H₂ and N-benzylidenebenzylamine (NBBA), respectively, compared with Zn₃In₂S₆. Notably, the selectivity of NBBA increased from 28.5 % of Zn₃In₂S₆ to 98 % of NiS_0.5%-ZIS/Bi_1.2%. This study offers novel insight into the cooperative coupling of H₂ production with organic transformation processes.

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.