Article ID Journal Published Year Pages File Type
606873 Journal of Colloid and Interface Science 2015 5 Pages PDF
Abstract

•Photoluminescent carbon dots (CDs) was developed by the hydrothermal treatment of amino acids.•The resulting CDs show uniform spherical morphology with the diameters in the range of ∼ 2.5–4.7 nm.•The CDs manifest the quantum yields of ∼7.5% and high stability.

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 ∼2.5–4.7 nm. 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.

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Related Topics
Physical Sciences and Engineering Chemical Engineering Colloid and Surface Chemistry
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