Qian ZHENG, Yuehan CAO, Nanjian HUANG, Fan DONG, Ying ZHOU. BiOBr-BN Photocatalysts for Promoting Photocatalytic NO Oxidation and Inhibiting Toxic By-products [J]. Journal of Inorganic Materials, 2020, 35(11): 1255
- Journal of Inorganic Materials
- Vol. 35, Issue 11, 1255 (2020)
1. Photocatalytic activities of BN, BiOBr and BiOBr-BN nanocomposites for NO oxidation (a) and NO2 generation (b) under visible light irradiation
2. XRD patterns of pure BiOBr, BiOBr-BN composites (a), and pure BN (b)
3. SEM images of (a) pure BiOBr and (b) 5%BiOBr-BN, and (c) TEM, (d) HRTEM images and SAED (insert) pattern of 5%BiOBr-BN
4. FT-IR spectra of BiOBr and 5%BiOBr-BN
5. XPS spectra of BiOBr and 5% BiOBr-BN composite
6. Charge density difference of BiOBr-BN green implies “lose electrons”, yellow implies “get electrons”
7. (a) PL spectra of BiOBr and BiOBr-BN nanocomposites excited at 360 nm; (b) Transient photocurrent response for pure BiOBr and 5%BiOBr-BN
8. Nitrogen absorption-desorption isotherms of (a) BiOBr and (b) 5%BiOBr-BN
9. Optimized structure of (a) O2 and (b) NO on BiOBr; optimized structure of (c) O2 and (d) NO adsorbed on BN
10. DMPO spin-trapping ESR spectra recorded with 5%BiOBr-BN in methanol dispersion for DMPO-•O2-
S1. Schematic illustration of the formation process of BiOBr-BN composites
S2. Structure schematic of the as-prepared BiOBr-BN nanocomposites
S3. Experimental setup for photocatalytic oxidation of NO
S4. Long time test of (a) NO oxidation and (b) NO2 generation over 5%BiOBr-BN under visible light irradation
S5. SEM image of BN
S6. TEM-EDS element mappings of the as-prepared 5%BiOBr-BN
S7. XPS spectra of the BiOBr and 5%BiOBr-BN composite
S7. Model structure of BiOBr-BN (a) BN; (b) BiOBr; (c) BiOBr-BN
S9. UV-Vis diffuse reflectance spectra of BiOBr, BN and BiOBr-BN nanocomposites
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Table 1. Contents of BiOBr-BN composites
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Table 2. Oxidation selectivity of BiOBr-BN samples
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Table 3. Surface chemical composition of 5%BiOBr-BN composite
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