Journal of Inorganic Materials, Volume. 35, Issue 11, 1255(2020)
Figures & Tables(22)
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
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
S4. Long time test of (a) NO oxidation and (b) NO2 generation over 5%BiOBr-BN under visible light irradation
S9. UV-Vis diffuse reflectance spectra of BiOBr, BN and BiOBr-BN nanocomposites
Table 1. Contents of BiOBr-BN composites
View tableView in ArticleTable 1. Contents of BiOBr-BN composites
5%BiOBr-BN 7.5%BiOBr-BN 10%BiOBr-BN 12.5%BiOBr-BN BiOBr/mol 0.005 0.005 0.005 0.005 BiOBr/g 1.5244 1.5244 1.5244 1.5244 BN/mol 0.1 0.067 0.05 0.04 BN/g 2.482 1.6547 1.241 0.9928 Mass percentage 61.41% 82.11% 122.82% 153.53%
Table 2. Oxidation selectivity of BiOBr-BN samples
View tableView in ArticleTable 2. Oxidation selectivity of BiOBr-BN samples
Sample Generation rate of NO2/% Nitrate
selectivity/%Sample Generation rate of NO2/% Nitrate selectivity/% 5%BiOBr-BN 6.6 81.5 12.5%BiOBr-BN 14.8 64.7 7.5%BiOBr-BN 9.9 79.8 BiOBr 16.4 36.6 10%BiOBr-BN 12.2 82.8 BN 0 0
Table 3. Surface chemical composition of 5%BiOBr-BN composite
View tableView in ArticleTable 3. Surface chemical composition of 5%BiOBr-BN composite
Element B N O Br Bi at% 31.68 22.73 22.07 12.57 10.95
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Qian ZHENG, Yuehan CAO, Nanjian HUANG, Fan DONG, Ying ZHOU.
Paper Information
Category: RESEARCH PAPER
Received: Jan. 13, 2020
Accepted: --
Published Online: Mar. 10, 2021
The Author Email: ZHOU Ying (yzhou@swpu.edu.cn)
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