| 초록 |
Conjugated Polymer dots (CPdots) are attracting much attention as fluorescent sensors and photocatalysts becuase of their high quantum efficiency and high photocatalytic efficiency, bright fluorescence. We have designed an amine-functionalized CPdots with fluorene backbone. The amine-functionalized CPdots were converted into hydrophilic polymers by CO2 bubbling leading to formation of cationic side groups on the hydrophobic polymer backbone. This resulted in a phase transfer to aqueous phase with high water dispersion stability and photocatalytic activity. By N2 bubbling to remove CO2 dissolved in water, CPdots became hydrophobic and returned to the organic phase. And then obtaining the water in which the photolyzed molecules are dissolved, the CPdots can be reused again by returning to the water phase by CO2 bubbling. This process is easily repeated by CO2/N2 bubbling. We developed reversibly phase transferable CPdots, which is easily recyclable photocatalyst by CO2/N2 bubbling. |
