Fig. 5From: Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd2+ removal from watera UV–Vis absorption spectrum with inset photographs of fluorescent CDs under 365 nm UV irradiation and under dark, b excitation-dependent emission spectra of CDs, c excitation-dependent emission spectra of CDs at different pHBack to article page