Gram-Scale Synthesis of Graphitic Carbon Nitride Quantum Dots with Ultraviolet Photoluminescence for Fe3+ Ion Detection
Xuemei Lu, Haijun Qin, Jiuzhang Cai, Yuhang Cui, Lixin Liao, Fengzhen Lv, Changming Zhu, Liguang Wang, Jun Liu, Lizhen Long, Wenjie Kong, Fuchi Liu
Abstract
A method for gram-scale synthesis of graphitic carbon nitride quantum dots (g-C3N4QDs) was developed. The weight of the g-C3N4QDs was up to 1.32 g in each run with a yield of 66 wt%, and the purity was 99.96 wt%. The results showed that g-C3N4QDs exhibit a stable and strong ultraviolet photoluminescence at a wavelength of 365 nm. More interestingly, the g-C3N4QDs can be used as a high-efficiency, sensitive, and selective fluorescent probe to detect Fe3+ with a detection limit of 0.259 μM.
Topics & Concepts
PhotoluminescenceGraphitic carbon nitrideUltravioletQuantum yieldMaterials scienceFluorescenceDetection limitQuantum dotIonCarbon nitrideCarbon fibersAnalytical Chemistry (journal)NitrideGramWavelengthNanotechnologyOptoelectronicsChemistryPhotocatalysisCatalysisChromatographyPhysicsOpticsComposite numberOrganic chemistryGeneticsBacteriaBiologyLayer (electronics)Composite materialCarbon and Quantum Dots ApplicationsAdvanced Nanomaterials in CatalysisAdvanced biosensing and bioanalysis techniques