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Carbon dots (CDs) are environmentally benign alternatives to quantum dots comprised of heavy metals with outstanding photoluminescent (PL) properties and have shown great promise in optical bio-imaging and sensing. However, it remains challenging to rationally design and synthesize CDs with red PL emission. We herein disclose that a red-shifted PL emission could be achieved by doping the electron-withdrawing...
N-enriched mesoporous carbon nanofibers (NMCNFs) were prepared by an electrospinning technique using graphitic carbon nitride (g-C3N4) nanosheets both as sacrificial template and N-doping source. The resultant NMCNF film has a high N-doping level of 8.6wt% and a high specific surface area of 554m2g−1. When directly used as the electrode material for supercapacitor, the free-standing NMPCNF film shows...
A one-step microwave-assisted polyol method was developed to fabricate green luminescent carbon dots (CDs). By using sucrose as the carbon source and diethylene glycol (DEG) as the reaction medium, the CDs were obtained within one minute under microwave irradiation. The as-prepared DEG stabilized CDs (DEG-CDs) had an average diameter about 5nm and could be readily dispersed in water with transparent...
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