Fig. 6From: Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd2+ removal from waterTrends of the extraction efficiency percentages a for Cd2+ at different pH, b for Cd2+ using CH, CH–CDs under dark and light at pH = 8, c pseudo-second-order mode for Cd2+ adsorption onto CH–CDs, d the linear fitting results of Langmuir modelsBack to article page