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. 2022 Jan 18;12(3):298. doi: 10.3390/nano12030298

Figure 10.

Figure 10

Photoluminescence (PL) and photoluminescence excitation (PLE) spectra of (a) Cd.CB, (b) Cd.H2SO4, (c) Cd.KOH, and (d) Cd.H2SO4 + KOH.