Although according to X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FT-IR), and differential thermal analysis (DTA), the incorporation of GQDs does not significantly affect...

Low toxic graphene quantum dot (GQD) was synthesized by pyrolyzing citric acid in alkaline solution and characterized using ultraviolet-visible (UV-vis) spectroscopy, X-ray diffraction...

2021年11月26日 · In the present study, graphene quantum dots (GQDs) were investigated as a nanomaterial nucleant for protein crystallization in the aspects of the process accelerations and their possible underlying mechanisms, where lysozyme was employed for a model system.

The geometrical characteristics of GQDs can be experimentally verified using several spectroscopic techniques, including X-ray diffraction (XRD), high-resolution TEM (HR-TEM), and Raman spectroscopy. The XRD pattern of GQDs typically exhibits the (100) in-plane lattice spacing of graphite and a (002) diffraction peak at ≈25° ( Figure 1a ...

Graphene quantum dots (GQDs), with their unique structure, may have exceptional potential in conductive inks for printed electronics due to their biocompatibility, high aqueous solubility, tunable fluorescence, and noticeable electrical properties.

2023年5月3日 · The synthesized graphene quantum dots (GQDs) by liquid phase exfoliation (LPE) method using sonication were structurally characterized by XRD, transmission electron microscopy (TEM) and Fast Fourier transform (FFT). The quantum dots were characterized optically by UV–vis spectroscopy, fluorescence microscopy, and …

2020年12月16日 · A new nanocomposite of the type ZnO fence with graphene quantum dots GQD/ZnO has been synthesized by the hydrothermal method. The crystallinity, structural and morphological properties are characterized by XRD, FT …

2014年10月28日 · Graphene quantum dots (GQDs) have various alluring properties and potential applications, but their large-scale applications are limited by current synthetic methods that...

Graphene quantum dots (GQDs) are nanoscale particles of graphene, typically having a diameter of less than 20 nm. The unique attributes of GQDs include low toxicity, good solubility, tunable photoluminescence (PL), biocompatibility, and photo-induced electron transfer.

2017年3月28日 · XRD demonstrated the increase in degree of crystallinity and decrease in interplaner distance as a function of GQD loading. In addition, the functional group’s interaction between CA/GQD was also confirmed by FTIR.