Hydrogen-bond-based charge bridge in 1,3,6,8-Tetra(4-carboxyphenyl) pyrene/carbon nitride heterojunction for photocatalytic CO2 reduction

IF 4.3 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS Diamond and Related Materials Pub Date : 2024-08-28 DOI:10.1016/j.diamond.2024.111544

引用次数: 0

Abstract

Constructing hydrogen bonds through the heterojunction is expected be a successful tactic for achieving efficient charge separation. Here, we presented a heterojunction between 1,3,6,8-Tetra(4-carboxyphenyl) pyrene (T) and carbon nitride (CN), named T/CN. Hydrogen bonds formed between carboxyl groups of T and pyridine N in CN through the heterojunction. T/CN exhibited improved visible light absorption and enhanced charge carrier separation. The yield of CH₄ over T/CN reached up to 17.8 μmol·g⁻¹·h⁻¹, ∼7 times higher than that of CN (2.55 μmol·g⁻¹·h⁻¹). This work improved the photocatalytic performance of carbon nitride by synthesizing heterojunction catalysts containing hydrogen bonds, which provided a scheme for the diversified development of heterojunction catalysts.

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用于光催化二氧化碳还原的 1,3,6,8-四（4-羧基苯基）芘/氮化碳异质结中基于氢键的电荷桥

通过异质结构建氢键有望成为实现高效电荷分离的成功策略。在这里，我们展示了 1,3,6,8-四（4-羧基苯基）芘（T）和氮化碳（CN）之间的异质结，命名为 T/CN。T 的羧基和 CN 中的吡啶 N 通过异质结形成氢键。T/CN 具有更好的可见光吸收性和更强的电荷载流子分离能力。T/CN 的 CH4 产率高达 17.8 μmol-g-1-h-1，是 CN（2.55 μmol-g-1-h-1）的 7 倍。该研究通过合成含有氢键的异质结催化剂提高了氮化碳的光催化性能，为异质结催化剂的多元化发展提供了方案。

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来源期刊

Diamond and Related Materials 工程技术-材料科学：综合

CiteScore

6.00

自引率

14.60%

发文量

702

审稿时长

2.1 months

期刊介绍： DRM is a leading international journal that publishes new fundamental and applied research on all forms of diamond, the integration of diamond with other advanced materials and development of technologies exploiting diamond. The synthesis, characterization and processing of single crystal diamond, polycrystalline films, nanodiamond powders and heterostructures with other advanced materials are encouraged topics for technical and review articles. In addition to diamond, the journal publishes manuscripts on the synthesis, characterization and application of other related materials including diamond-like carbons, carbon nanotubes, graphene, and boron and carbon nitrides. Articles are sought on the chemical functionalization of diamond and related materials as well as their use in electrochemistry, energy storage and conversion, chemical and biological sensing, imaging, thermal management, photonic and quantum applications, electron emission and electronic devices. The International Conference on Diamond and Carbon Materials has evolved into the largest and most well attended forum in the field of diamond, providing a forum to showcase the latest results in the science and technology of diamond and other carbon materials such as carbon nanotubes, graphene, and diamond-like carbon. Run annually in association with Diamond and Related Materials the conference provides junior and established researchers the opportunity to exchange the latest results ranging from fundamental physical and chemical concepts to applied research focusing on the next generation carbon-based devices.