Research Article
Bi-Modified Bi2WO6/BiOI Heterojunction with Enhanced Visible-Light-Driven Photoactivity for Antibiotic Degradation
Figure 4
XPS spectra of as-prepared 20% Bi-Bi2WO6/BiOI samples. (a) Survey scan, (b) Bi 4f, (c) W 4f, (d) I 3d, and (e) O 1s.
| (a) |
| (b) |
| (c) |
| (d) |
| (e) |