A facile hydrothermal approach towards photoluminescent carbon dots from amino acids

作者：Pei, Supeng; Zhang, Jing; Gao, Mengping; Wu, Dongqing^*; Yang, Yuxing; Liu, Ruili

来源：Journal of Colloid and Interface Science, 2015, 439: 129-133.

DOI：10.1016/j.jcis.2014.10.030

• Photoluminescence
• Carbon dots
• Amino acids
• Heteroatoms
• Hydrothermal treatment

A facile one-pot method to fabricate photoluminescent carbon dots (CDs) was developed by the hydrothermal treatment of amino acids at mild temperatures. Derived from three different kinds of amino acids including serine, histidine, and cystine, the resultant CDs show uniform spherical morphology with the diameters in the range of similar to 2.5-4.7 nm. These amino acid derived CDs also manifest excellent photoluminescence behavior with the quantum yields (QYs) of similar to 7.5% and high stability. More importantly, this method provides the opportunity to modify the sizes, structures, and photoluminescent behavior of CDs by the utilization of diversified amino acids with different structural characteristics.

• 出版日期2015-2-1
• 单位上海大学; 上海应用技术大学