Hydrogen bonding interactions guided supramolecular self-assembly has been widely studied, which played important roles in the field of nanotechnology and nanodevices. Herein, an effective intermolecular hydrogen bonding mediated heating-up synthesis of high-quality fluorescent carbon dots (CDs) is developed based on hydrogen-bonding between trimesic acid and urea. Upon optimizing the hydrogen-bonding interaction, high quality of CDs with high monodispersity and stability could be obtained. Besides, these CDs could be used for sensitive and specific detection of ferric ions. The novel strategy may pave a new way in molecular engineering for the fabrication of high quality of CDs.

氢键相互作用引导的超分子自组装已得到广泛研究，在纳米技术和纳米器件领域起着重要作用。在本文中，基于偏苯三酸和尿素之间的氢键，开发了有效的分子间氢键介导的高质量荧光碳点（CD）的加热合成。通过优化氢键相互作用，可以获得具有高单分散性和稳定性的高质量CD。此外，这些CD可用于灵敏而特异的三价铁离子检测。这种新颖的策略可能为分子工程学制造高质量CD铺平新的道路。