Figure 2

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(a) XRD patterns of CdS/PDA/FeOOH; (b) FTIR spectra of CdS, CdS/PDA, CdS/FeOOH, CdS/PDA/FeOOH, PDA; (c–g) XPS fine spectra of Cd, S, Fe, O and N; (h) XPS full spectrum of CdS/PDA/FeOOH.
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