Self-assembly facilitated and visible light-driven generation of carbon dots
Self-assembly facilitated and visible light-driven generation of carbon dots
复制标题
自组装促进和可见光驱动的碳点生成
DOI：
10.1039/c7cc08876k
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发表时间：
2018
影响因子：
4.9
通讯作者：
Yan Yun
中科院分区：
文献类型：
--
作者：
Huang Tian;Wu Tongyue;Zhu Zhiyang;Zhao Li;Ci Haina;Gao Xuedong;Liu Kaerdun;Zhao Junfang;Huang Jianbin;Yan Yun
用弱可见光照射自组装的噻吩两亲体TTC4L，制备了绝对荧光量子产率为87%的碳点（CDs）。可见光照射TTC4L触发水中超氧自由基的产生，将紧密排列的噻吩基团氧化成碳点。结果表明，分子自组装可能是单分子类碳点生成的重要前体；该方法为高质量cd的制备铺平了道路。
Carbon dots (CDs) with an absolute fluorescence quantum yield of 87% are facilely prepared via irradiation of self-assembled terthiophene amphiphile TTC4L in aqueous solution by mild visible light. Visible light irradiation of TTC4L triggers the production of superoxide radicals in water, which oxidize the closely packed terthiophene group into carbon dots. Our results reveal that the molecular self-assembly may act as important precursor for the generation of single molecule-like carbon dots; this method paves the way for the fabrication of CDs of high quality.