479870 Synthesis, Purification, and Capillary Electrophoretic Separation of Fluorescent Carbon Nanodots
In addressing these questions, we are investigating how the purification process affects the purity of fluorescent C-dots. We have used one of the most commonly reported approaches to synthesize C-dots, namely the hydrothermal treatment of simple molecular precursors. We used citric acid and 1,2-ethylenediamine as the molecular precursors in the production of C-dots. The as-synthesized fluorescent product was purified by the most commonly used purification method reported in the literature; that is the dialysis against pure water [3,4]. The fluorescent products inside the dialysis membrane (retentate) and that outside the membrane (permeate) were collected at different time intervals during the dialysis process that proceeded for several days. The QY of each sample was determined. In addition, the samples were analyzed via capillary electrophoretic (CE) and laser induced fluorescence (LIF). The CE separations showed variation in complexity of retentate and permeate during the dialysis process and the QY was also different. The details of our experiments and findings will be the focus of this presentation.
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See more of this Group/Topical: 2016 Annual Meeting of the AES Electrophoresis Society