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Expanding the Conjugate Structure of Polymeric Carbon Nitride for Enhanced Light Absorption and Photothermal Conversion
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-09-29 , DOI: 10.1002/marc.202100502
Cheng Liu 1 , Guang Chen 2 , Ze Zhang 2 , Yezi You 2
Macromolecular Rapid Communications ( IF 4.2 ) Pub Date : 2021-09-29 , DOI: 10.1002/marc.202100502
Cheng Liu 1 , Guang Chen 2 , Ze Zhang 2 , Yezi You 2
Affiliation
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The development of efficient and inexpensive materials for light energy conversion is very important for achieving sustainable energy supply and carbon neutrality. Polymeric carbon nitride has become a promising material for light energy conversion due to its advantages of simple preparation and high physical and chemical stability. However, the pristine polymeric carbon nitride only absorbs light with a wavelength of less than 450 nm, and the energy conversion for low-energy photons is very limited. Here, by introducing the pyromellitic dianhydride component to construct an in-plane heterostructure, the conjugated structure of polymeric carbon nitride is successfully expanded. This in-plane carbon nitride-carbon nanoribbon (C3N4-C) heterostructure has an ultrawide absorption range from 200 to 2000 nm. Compared with the original material, the photothermal conversion performance of C3N4-C is significantly improved under the irradiation of Xe lamp or infrared laser. Furthermore, C3N4-C exhibits good potential for synergistic photothermal and chemotherapy. This work provides a simple strategy to construct expanded conjugate structure for improved light absorption and energy conversion materials based on polymeric carbon nitride.
中文翻译:
扩展聚合氮化碳的共轭结构以增强光吸收和光热转换
开发高效廉价的光能转换材料对于实现可持续能源供应和碳中和非常重要。聚合氮化碳以其制备简单、物理化学稳定性高等优点成为一种很有前途的光能转换材料。然而,原始的聚合氮化碳只吸收波长小于 450 nm 的光,对低能光子的能量转换非常有限。在这里,通过引入均苯四酸二酐组分构建面内异质结构,成功扩展了聚合氮化碳的共轭结构。这种面内氮化碳-碳纳米带(C 3 N 4-C) 异质结构具有从 200 到 2000 nm 的超宽吸收范围。与原始材料相比,C 3 N 4 -C 在氙灯或红外激光照射下的光热转换性能得到显着提高。此外,C 3 N 4 -C 在协同光热和化学疗法方面表现出良好的潜力。这项工作提供了一种简单的策略来构建基于聚合氮化碳的改进的光吸收和能量转换材料的扩展共轭结构。
更新日期:2021-12-04
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
扩展聚合氮化碳的共轭结构以增强光吸收和光热转换
开发高效廉价的光能转换材料对于实现可持续能源供应和碳中和非常重要。聚合氮化碳以其制备简单、物理化学稳定性高等优点成为一种很有前途的光能转换材料。然而,原始的聚合氮化碳只吸收波长小于 450 nm 的光,对低能光子的能量转换非常有限。在这里,通过引入均苯四酸二酐组分构建面内异质结构,成功扩展了聚合氮化碳的共轭结构。这种面内氮化碳-碳纳米带(C 3 N 4-C) 异质结构具有从 200 到 2000 nm 的超宽吸收范围。与原始材料相比,C 3 N 4 -C 在氙灯或红外激光照射下的光热转换性能得到显着提高。此外,C 3 N 4 -C 在协同光热和化学疗法方面表现出良好的潜力。这项工作提供了一种简单的策略来构建基于聚合氮化碳的改进的光吸收和能量转换材料的扩展共轭结构。