Figure 7

Photographs of as-prepared CNDs suspension upon addition of Fe3+ with different concentrations ranging from 0–1000 μM under under daylight (above) and upon irradiation with 365 nm UV light (below).

Photographs of as-prepared CNDs suspension upon addition of Fe3+ with different concentrations ranging from 0–1000 μM under under daylight (above) and upon irradiation with 365 nm UV light (below).