A novel one-pot route for large-scale preparation of highly photoluminescent carbon quantum dots powders

Abstract

A simple one-pot microwave-assisted approach has been established for the large-scale preparation of carbon quantum dots (CDs) with excellent water solubility and photoluminescence. The properties and mechanism were demonstrated. Moreover, the CDs have been applied to the detection of tetracycline hydrochloride.

Selective and sensitive chemosensor for lead ions using fluorescent carbon dots prepared from chocolate by one-step hydrothermal method

“…Meanwhile, they have fascinating properties including outstanding water solubility, good photostability, super biocompatibility, and low toxicity [27][28][29][30] [34], and Bai et al developed a CDs-based fluorescence turnon method for sensitive determination of DNA [35].…”

Rapid microwave-assisted synthesis of molecularly imprinted polymers on carbon quantum dots for fluorescent sensing of tetracycline in milk

“…In our previous work, we have proposed a simple and cost-effective approach for the large-scale preparation of CDs by microwave-assisted technique [27]. Although preliminary investigation for Tc determination has been studied, it is still a challenge to design selective and reliable chemical sensors without cross-reactivity and false 4 positives in complex samples.…”

Peroxynitrite and nitric oxide fluorescence sensing by ethylenediamine doped carbon dots

“…Since the first microwave CDs synthesis from glucose and poly(ethylene glycol) (PEG-200) [7], several other precursors had been used: glucose/poly(acrylatesodium) [8], carbohydrates/inorganic salts [9], glycerol/phosphate [9], glycerol/4,7,10-trioxa-1,13-tridecanediamine [10], citric acid (CA)/1,2-ethylenediamine (EDA) [11], CA/amines [12], phytic acid/EDA [13], poloxamer [14], triammonium citrate/soluble phosphate [15], chitosan [16] and dopamine [17]. Depending on the synthesis conditions and for the precursors used, CDs with different dimensions and quantum yields can be obtained [7][8][9][10][11][12][13][14][15][16][17]. CDs microwave synthesized from CA and EDA were used for bioimaging [12] and iodide detection [11] with a reported quantum yield (˚) respectively of 30.2 and 43.8%.…”