Utilization of Polyurethane and Sodium Polyacrylate for the Synthesis of Carbon Dots and their Sensing and Energy Storage Applications
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초록
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Million tons of plastic wastes have been improperly discarded and caused severe environmental problems. One of the main reasons is that recycling of the plastic wastes is neither attractively economical nor technologically useful. In this work, we presented novel strategies in converting polyurethane and sodium polyacrylate into carbon dots. Carbon dots are carbon-based nanoparticles with unique properties, such as tunable fluorescence, chelating ability, electroactive functions, etc. The polyurethane-derived carbon dots were used for selective sensing of Ag+ and Ni+ ions whereas the sodium polyacrylate-derived carbon dots were found to significantly enhance the electrochemical performances of TiO2-based supercapacitors. Based on these studies, these value-adding strategies to polymer wastes will be technologically beneficial in various fields.