ZnCl2 Enabled Synthesis of Highly Crystalline and Emissive Carbon Dots with Exceptional Capability to Generate O2a??a??

摘要： Highly crystalline and emissive carbon dots (CDs) are ?rstly synthesized via an ionothermal method in organic solvents. ZnCl2 is utilized as the pyrolysis-promoting agent to prepare emissive CDs with tunable wavelengths, directly by carbonization from different O and N precursors under a mild reaction condition. Excellent synthetic yield and photoluminescent quantum yield are obtained. The resulting CDs exhibit excellent capability to photogenerate superoxide radical anion (O2 photooxidative cyclization reactions.