Experimental and molecular modeling of interaction of carbon quantum dots with glucose

Abstract

Carbon Quantum Dots are a 0D dimension nanomaterial and they have promising properties, such as fluorescence. In this study, the carbon quantum dots were derived from biochar. The prepared sample was characterized using a UV–visible spectrometer, Fourier transform infrared spectroscopy, and fluorescence spectroscopy, and the morphology was investigated using a high-resolution transmission electron microscopy image. The linear and nonlinear refractive indies were obtained from a UV–visible spectrum and a Z-scan signal. The carbon quantum dots were combined with glucose, and then the variation between the fluorescence spectrum and response time were investigated. The interaction of the carbon quantum dots with the glucose was simulated using density functional theory for finding the stable molecular in the lower energy. Consequently, the carbon quantum dots interacted with the glucose in van der Waals bonding. © 2019, Springer-Verlag GmbH Germany, part of Springer Nature.