可见光下Bi2WO6纳米片高效光降解四环素的机理研究

魏鑫; 卢占会; 王路平; 方明

doi:doi:10.15541/jim20190389

无机材料学报, 2020, 35 (3): 324, 网络出版: 2021-01-27

可见光下Bi2WO6纳米片高效光降解四环素的机理研究下载： 502次

Mechanism Study of Tetracycline High Efficient Photodegradation by Bi₂WO₆ Nanosheets under Visible Light Irradiation

魏鑫 ¹卢占会 ^1,*王路平 ¹方明 ^2,*

作者单位

¹ 华北电力大学数理学院, 北京 102206

² 华北电力大学环境科学与工程学院资源环境系统优化教育部重点实验室, 北京 102206

图 & 表

图 1. 加入不同NaOH含量制备的样品的XRD谱图

Fig. 1. XRD patterns of the sample prepared with different NaOH additions

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图 2. Bi₂WO₆纳米片的FESEM照片(a), TEM照片(b), HRTEM照片(c)和能谱图(d)

Fig. 2. FESEM image (a), TEM image (b), HRTEM image (c), and Energy Dispersion Spectrum (d) of Bi₂WO₆ nanosheets

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图 3. Bi₂WO₆纳米片样品的紫外-可见吸收谱(a)和带隙图(b)

Fig. 3. UV-Vis absorption spectrum (a) and band gap plot of Bi₂WO₆ nanosheets (b)

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图 4. 添加不同NaOH制备的Bi₂WO₆对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 4. Photodegradation of tetracycline by products prepared with different NaOH additions (a), and corresponding curves of lnC₀/C vs. time

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图 5. 添加1 g NaOH制备的Bi₂WO₆纳米片在不同pH溶液中对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 5. (a) Photodegradation of tetracycline in the solution with different pH and corresponding curves of lnC₀/C vs. time (b) of Bi₂WO₆ nanosheets prepared with addition of 1 g NaOH

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图 6. 自由基捕获实验

Fig. 6. Radical capturing experiments

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图 7. Bi₂WO₆纳米片在可见光照射下四个周期光电流信号的稳定性实验(a)和Bi₂WO₆纳米片的奈奎斯特频谱(b)

Fig. 7. (a) Signal stability of photocurrent of Bi₂WO₆ nanosheets under visible light irradiation for four cycles and (b) Nyquist spectra of Bi₂WO₆ nanosheets

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图 8. Bi₂WO₆纳米片的循环伏安图

Fig. 8. CV curve of the Bi₂WO₆ nanosheets

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魏鑫, 卢占会, 王路平, 方明. 可见光下Bi2WO6纳米片高效光降解四环素的机理研究[J]. 无机材料学报, 2020, 35(3): 324. Xin WEI, Zhanhui LU, Luping WANG, Ming FANG. Mechanism Study of Tetracycline High Efficient Photodegradation by Bi₂WO₆ Nanosheets under Visible Light Irradiation[J]. Journal of Inorganic Materials, 2020, 35(3): 324.

可见光下Bi2WO6纳米片高效光降解四环素的机理研究下载： 502次

图 1. 加入不同NaOH含量制备的样品的XRD谱图

Fig. 1. XRD patterns of the sample prepared with different NaOH additions

图 2. Bi₂WO₆纳米片的FESEM照片(a), TEM照片(b), HRTEM照片(c)和能谱图(d)

Fig. 2. FESEM image (a), TEM image (b), HRTEM image (c), and Energy Dispersion Spectrum (d) of Bi₂WO₆ nanosheets

图 3. Bi₂WO₆纳米片样品的紫外-可见吸收谱(a)和带隙图(b)

Fig. 3. UV-Vis absorption spectrum (a) and band gap plot of Bi₂WO₆ nanosheets (b)

图 4. 添加不同NaOH制备的Bi₂WO₆对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 4. Photodegradation of tetracycline by products prepared with different NaOH additions (a), and corresponding curves of lnC₀/C vs. time

图 5. 添加1 g NaOH制备的Bi₂WO₆纳米片在不同pH溶液中对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 5. (a) Photodegradation of tetracycline in the solution with different pH and corresponding curves of lnC₀/C vs. time (b) of Bi₂WO₆ nanosheets prepared with addition of 1 g NaOH

图 6. 自由基捕获实验

Fig. 6. Radical capturing experiments

图 7. Bi₂WO₆纳米片在可见光照射下四个周期光电流信号的稳定性实验(a)和Bi₂WO₆纳米片的奈奎斯特频谱(b)

Fig. 7. (a) Signal stability of photocurrent of Bi₂WO₆ nanosheets under visible light irradiation for four cycles and (b) Nyquist spectra of Bi₂WO₆ nanosheets

图 8. Bi₂WO₆纳米片的循环伏安图

Fig. 8. CV curve of the Bi₂WO₆ nanosheets

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可见光下Bi2WO6纳米片高效光降解四环素的机理研究 下载： 502次

图 1. 加入不同NaOH含量制备的样品的XRD谱图

Fig. 1. XRD patterns of the sample prepared with different NaOH additions

图 2. Bi2WO6纳米片的FESEM照片(a), TEM照片(b), HRTEM照片(c)和能谱图(d)

Fig. 2. FESEM image (a), TEM image (b), HRTEM image (c), and Energy Dispersion Spectrum (d) of Bi2WO6 nanosheets

图 3. Bi2WO6纳米片样品的紫外-可见吸收谱(a)和带隙图(b)

Fig. 3. UV-Vis absorption spectrum (a) and band gap plot of Bi2WO6 nanosheets (b)

图 4. 添加不同NaOH制备的Bi2WO6对四环素的光降解曲线(a)及其lnC0/C曲线(b)

Fig. 4. Photodegradation of tetracycline by products prepared with different NaOH additions (a), and corresponding curves of lnC0/C vs. time

图 5. 添加1 g NaOH制备的Bi2WO6纳米片在不同pH溶液中对四环素的光降解曲线(a)及其lnC0/C曲线(b)

Fig. 5. (a) Photodegradation of tetracycline in the solution with different pH and corresponding curves of lnC0/C vs. time (b) of Bi2WO6 nanosheets prepared with addition of 1 g NaOH

图 6. 自由基捕获实验

Fig. 6. Radical capturing experiments

图 7. Bi2WO6纳米片在可见光照射下四个周期光电流信号的稳定性实验(a)和Bi2WO6纳米片的奈奎斯特频谱(b)

Fig. 7. (a) Signal stability of photocurrent of Bi2WO6 nanosheets under visible light irradiation for four cycles and (b) Nyquist spectra of Bi2WO6 nanosheets

图 8. Bi2WO6纳米片的循环伏安图

Fig. 8. CV curve of the Bi2WO6 nanosheets

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可见光下Bi2WO6纳米片高效光降解四环素的机理研究下载： 502次

图 2. Bi₂WO₆纳米片的FESEM照片(a), TEM照片(b), HRTEM照片(c)和能谱图(d)

Fig. 2. FESEM image (a), TEM image (b), HRTEM image (c), and Energy Dispersion Spectrum (d) of Bi₂WO₆ nanosheets

图 3. Bi₂WO₆纳米片样品的紫外-可见吸收谱(a)和带隙图(b)

Fig. 3. UV-Vis absorption spectrum (a) and band gap plot of Bi₂WO₆ nanosheets (b)

图 4. 添加不同NaOH制备的Bi₂WO₆对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 4. Photodegradation of tetracycline by products prepared with different NaOH additions (a), and corresponding curves of lnC₀/C vs. time

图 5. 添加1 g NaOH制备的Bi₂WO₆纳米片在不同pH溶液中对四环素的光降解曲线(a)及其lnC₀/C曲线(b)

Fig. 5. (a) Photodegradation of tetracycline in the solution with different pH and corresponding curves of lnC₀/C vs. time (b) of Bi₂WO₆ nanosheets prepared with addition of 1 g NaOH

图 7. Bi₂WO₆纳米片在可见光照射下四个周期光电流信号的稳定性实验(a)和Bi₂WO₆纳米片的奈奎斯特频谱(b)

Fig. 7. (a) Signal stability of photocurrent of Bi₂WO₆ nanosheets under visible light irradiation for four cycles and (b) Nyquist spectra of Bi₂WO₆ nanosheets

图 8. Bi₂WO₆纳米片的循环伏安图

Fig. 8. CV curve of the Bi₂WO₆ nanosheets