Xinquan MA, Xibao LI, Zhi CHEN, Zhijun FENG, Juntong HUANG. BiOBr/ZnMoO4 Step-scheme Heterojunction: Construction and Photocatalytic Degradation Properties [J]. Journal of Inorganic Materials, 2023, 38(1): 62
- Journal of Inorganic Materials
- Vol. 38, Issue 1, 62 (2023)
1. Preparation process of BiOBr/ZnMoO4 composite photocatalyst
2. XRD patterns of the samples (a) and corresponding partial enlarged pattern at 2θ =29°-33°(b)
3. TEM images (a, b) and HRTEM images (c) and elemental mapping analyses (d-i) of 15% BiOBr/ZnMoO4 samples
4. In-situ XPS spectra of 15% BiOBr/ZnMoO4 (a), and corresponding Bi4f (b), O1s (c), Br3d (d), Zn2p (e) and Mo3d (f) high-resolution XPS spectra
5. Photodegradation of BPA by different catalysts under visible light irradiation (a) and corresponding first-order kinetic equations (c); CIP photodegradation (b) and corresponding first-order kinetic equations (d); UV spectra of BPA(e) and CIP(f) photodegraded by 15% BiOBr/ZnMoO4
6. Work functions of BiOBr (a), ZnMoO4 (b) and 15% BiOBr/ZnMoO4(c)
7. Formation of IEF, band bending and photogenerated charge transfer mechanism before and after BiOBr and ZnMoO4 contact
8. Radical trapping experiment of 15% BiOBr/ZnMoO4
9. S-scheme heterojunction photocatalytic mechanism of BiOBr/ZnMoO4 photocatalyst
S1. Cycling test (a) of 15% BiOBr/ZnMoO4 degradation of BPA and XRD spectra before and after photocatalytic cycling (b)
S2. Transient photocurrent response curves (a) and electrochemical impedance spectra (b)
S3. Mott-Schottky curves of BiOBr (a) and ZnMoO4 (b); UV-Vis DRS of samples (c); Tauc plots of BiOBr and ZnMoO4 (d)
S4. ESR detection results of 15% BiOBr/ZnMoO4: DMPO-·OH (a) and DMPO-·O2- (b)
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