Fluorescence characteristics of carbon nanoemitters derived from sucrose by green hydrothermal and microwave methods

Natural Carbonized Sugar as a Low-Temperature Ammonia Sensor Material: Experimental, Theoretical, and Computational Studies

“…The band that appeared at 618 cm −1 was assigned to C−H deformation. The assignment of all FTIR peaks was in good agreement with the literature values 43 for graphitic carbon. As shown in Figure S2, the XPS survey of the as-prepared sample demonstrates the presence of C and O without any additional impurities, which is in accordance with EDX analysis.…”

Fluorescent carbon nanoparticles obtained from charcoal via green methods and their application for sensing Fe3+ in an aqueous medium

“…Their emission spectra were recorded at various excitation wavelengths with an increment of 10 nm to obtain the optimized emission spectra. This type of strategy to obtain emission spectra with highest intensity by testing different excitation wavelength has been reported previously in the literature . Emission spectra with the increment of excitation wavelengths are shown in Figures S8 and S9.…”

Green synthesis of CQDs for determination of iron and isoniazid in pharmaceutical formulations

“…11,12 Among them, the hydrothermal method has low requirements for reaction precursors, can easily be used to prepare large quantities, and is one of the most commonly used methods in the laboratory. The precursors employed by researchers to synthesize CQDs include natural components such as gelatin, 13 orange juice, 14 pear juice, 15 sucrose, 16 honey, 17 and orange peel, 18 in addition to some organic reagents like citric acid and ethylenediamine. 19,20 Up to now, there have been numerous pieces of research on the detection of Fe 3+ utilizing CQDs.…”