Dual-emission of Eu based metal-organic frameworks hybrids with carbon dots for ratiometric fluorescent detection of Cr(VI)

A novel blue fluorescence nitrogen and cobalt(II) co-doped carbon dots (CDs) encapsulated in europium metal-organic frameworks ([email protected]) were synthesized to form a ratiometric fluorescent sensor for the detection of Cr(VI). The [email protected] were characterized by transmission electron microscopic (TEM), scanning electron microscopic (SEM), Fourier transform infrared (FT-IR) and X-ray powder diffraction (XRD) techniques. The...