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. 2019 Apr 16;7:244. doi: 10.3389/fchem.2019.00244

Figure 3.

Figure 3

(A) Photoluminescence intensity of 1 when it was dispersed in different metal ions solutions in H2O (λex = 320 nm); (B) Quenching in photoluminescence intensity after adding 1 mM Fe3+ solution; (C) SV plot after adding different Fe3+ concentrations.