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作为颜色调制的固态光材料的PET衍生异质原子合碳量子点
Peerapong Promcharoen1, Peerapong Chumkaeo1, Sunichaya Charoenchaidet2
1NANOCAST Laboratory, Center for Catalysis Science and Technology (CAST), Department of Chemistry, Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University 272 Rama VI Rd., Ratchathewi Bangkok 10400 Thailand ekasith.som@mahidol.ac.th.
RSC advances
|May 7, 2025
概括
塑料垃圾被转化为高性能量子点 (QD),用于敏感检测Fe3+和F-离子. 这些QD提供稳定的固态光和可调色颜色,用于先进的传感和光学应用.
科学领域:
- 材料科学 材料科学 材料科学
- 环境化学环境化学
- 纳米技术纳米技术
背景情况:
- 塑料垃圾对环境构成重大挑战.
- 量子点 (QD) 为传感应用提供独特的光学特性.
- 开发QD合成的可持续方法至关重要.
研究的目的:
- 将塑料垃圾转化为高性能量子点 (QD).
- 利用合成的QD用于Fe3+和F-离子的敏感和选择性检测.
- 探索这些QD在固态传感和光电子设备中的潜力.
主要方法:
- 塑料废物经过化学处理,合成了量子点.
- 合成的QDs的光特性被描述.
- 采用QD用于检测Fe3+和F-离子,使用"开启-关闭"双模式策略.
- 研究了异质原子结合对QD发射颜色的影响.
主要成果:
- 从塑料垃圾中成功合成了高性能量子点.
- QDs在检测Fe3+和F-离子方面表现出高的灵敏度和选择性.
- 观察到稳定的固态光,克服了典型的光损失问题.
- 通过结合各种异质原子,实现了三种不同的排放颜色,展示了材料的可调性.
结论:
- 塑料垃圾可以被重新利用为环境传感的功能量子点.
- 合成的QD为开发先进的光学和传感技术提供了一个可持续和多功能平台.
- 这些QD的可调节的固态光能为可定制的光电子设备和固态应用开辟了道路.
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02:39Emission Spectra
When solids, liquids, or condensed gases are heated sufficiently, they radiate some of the excess energy as light. Photons produced in this manner have a range of energies, and thereby produce a continuous spectrum in which an unbroken series of wavelengths is present.
03:02Colors and Magnetism
Color in Coordination Complexes
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.
When atoms or molecules absorb light at the proper frequency, their electrons are excited to higher-energy orbitals. For many main group atoms and molecules, the absorbed photons are in the ultraviolet range of the electromagnetic spectrum, which cannot be detected by the human eye. For coordination compounds, the energy difference between the d orbitals often allows photons in the visible range to be absorbed and emitted, which is seen as colors by the human eye.