title: A facile hydrothermal approach towards photoluminescent carbon dots from amino acids.
abstract: 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 ∼2.5-4.7nm. These amino acid derived CDs also manifest excellent photoluminescence behavior with the quantum yields (QYs) of ∼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.
authors.affiliation: School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 201418 Shanghai, China.
authors.forename: Supeng
authors.initials: S
authors.lastname: Pei
authors.affiliation: Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shangda Road 99, 200444 Shanghai, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shangda Road 99, 200444 Shanghai, China.
authors.forename: Mengping
authors.initials: M
authors.lastname: Gao
authors.affiliation: School of Chemical and Environmental Engineering, Shanghai Institute of Technology, 201418 Shanghai, China. Electronic address: wudongqing@gmail.com.
authors.forename: Dongqing
authors.initials: D
authors.lastname: Wu
authors.affiliation: Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shangda Road 99, 200444 Shanghai, China.
authors.forename: Yuxing
authors.initials: Y
authors.lastname: Yang
authors.affiliation: Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shangda Road 99, 200444 Shanghai, China. Electronic address: ruililiu@shu.edu.cn.
authors.forename: Ruili
authors.initials: R
authors.lastname: Liu
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D002244:Carbon / Q000737:chemistry*; D006358:Hot Temperature; D049408:Luminescent Agents / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D015394:Molecular Structure; D045663:Quantum Dots
chemical_list: D000596:Amino Acids; D049408:Luminescent Agents; D002244:Carbon
keywords: Amino acids; Carbon dots; Heteroatoms; Hydrothermal treatment; Photoluminescence