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Table 2 Summary of some adsorbent-based carbon quantum dots used for Cd(II) removal

From: Rational synthesis, characterization, and application of environmentally friendly (polymer–carbon dot) hybrid composite film for fast and efficient UV-assisted Cd2+ removal from water

Adsorbentqm/mg g−1Experimental conditionst/minRefs.
SnO2 quantum dots decorated reduced graphene oxide40.81pH = 6.5, 30 °C20[71]
Carbon quantum dots/layered double hydroxide12.6pH = 6, T = 30 °C20[9]
Carbon dots modified mesoporous organosilica105.5pH = 8, T = 30 °C500[72]
Poly (acrylic acid)-activated carbon nanocomposite473.2pH = 6, T = 25 °C120[73]
Hollow calcite single crystals with carbon quantum dots66.68pH = 5, T = 25 °C90[74]
S,N codoped carbon quantum dots modified chitosan membranes112.4pH = 8
T = 25 °C
UV = 365 nm
3This work