fig4

Figure 4. XPS spectra of BV and BVC for (A) Bi 4f, (B) V 2p, (C) O 1s, and (D) C1s. BV: BiVO4; BVC: bismuth vanadate/carbon; XPS: X-ray photoelectron spectroscopy.
Figure 4. XPS spectra of BV and BVC for (A) Bi 4f, (B) V 2p, (C) O 1s, and (D) C1s. BV: BiVO4; BVC: bismuth vanadate/carbon; XPS: X-ray photoelectron spectroscopy.
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