2D In-Plane CuS/Bi2WO6 p-n Heterostructures with Promoted Visible-Light-Driven Photo-Fenton Degradation Performance
Abstract
:1. Introduction
2. Experimental Section
2.1. Chemicals
2.2. Sample Preparation
2.2.1. Preparation of Bi2WO6 Nanosheets
2.2.2. Preparation of CuS/Bi2WO6 Heterostructure
2.3. Characterization
2.4. Photocatalytic and Photo-Fenton Catalytic Activity Measurement
3. Results and Discussion
3.1. Structure, Composition, and Morphology of Samples
3.2. Photocatalytic and Photo-Fenton Catalytic Performance
3.3. Photocatalytic and Photo-Fenton Catalytic Mechanism
4. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Samples | Light Source | Organic Pollutants | Experimental Conditions | ηd) (%) | Refs. | |||||
---|---|---|---|---|---|---|---|---|---|---|
Type a) | Power (W) | Type | Conc. b) (mg·L−1) | Catalyst (g/L) | t c) (time) | pH | H2O2 | |||
Co3O4/Bi2WO6 | Tungsten lamp | 100 | Methylene blue (MB) | 10 | 1 | 80 | 8 | 1.96 mM | 96 | [26] |
Bi2WO6/Fe3O4 | Xe lamp | 350 | RhB | 10 | 0.5 | 120 | 7 | 10 mM | 95 | [27] |
CuS-TiO2 | Xe lamp | 350 | MB | 10 | 1 | 180 | - | - | 100 | [28] |
g-C3N4/CuS | Xe lamp | 300 | RhB | 10 | 0.3 | 60 | - | - | 96.8 | [29] |
CuS/Bi2W2O9 | Xe lamp | 150 | Diuron | 10 | 0.75 | 180 | - | 200 µL | 95 | [31] |
CuS/Bi4Ti3O12 | Xe lamp | 250 | 2-methyl-4-chlorophenoxyacetic acid | 10 | 0.25 | 180 | - | 150 µL | 96 | [41] |
TiO2/Fe3O4 | UVC-lamp | 10 | TC-HCl | 50 | 0.3 | 60 | 7 | 10 mM | 98 | [42] |
0.1% CuS/Bi2WO6 | Metal halide lamp | 300 | RhB | 20 | 1.0 | 25 | - | 100 µL | 100 | this work |
TC-HCl | 40 | 1.0 | 50 | 7 | 73 |
Samples | τ1 (ns) | A1 | τ2 (ns) | A2 | Τav (ns) |
---|---|---|---|---|---|
Bi2WO6 nanosheets | 0.903 | 2.22 × 1011 | 12.205 | 1022.997 | 0.903 |
0.1% CuS/Bi2WO6 | 17.552 | 1.50 × 103 | 1.359 | 1.32 × 109 | 1.360 |
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Guo, L.; Zhang, K.; Han, X.; Zhao, Q.; Wang, D.; Fu, F. 2D In-Plane CuS/Bi2WO6 p-n Heterostructures with Promoted Visible-Light-Driven Photo-Fenton Degradation Performance. Nanomaterials 2019, 9, 1151. https://doi.org/10.3390/nano9081151
Guo L, Zhang K, Han X, Zhao Q, Wang D, Fu F. 2D In-Plane CuS/Bi2WO6 p-n Heterostructures with Promoted Visible-Light-Driven Photo-Fenton Degradation Performance. Nanomaterials. 2019; 9(8):1151. https://doi.org/10.3390/nano9081151
Chicago/Turabian StyleGuo, Li, Kailai Zhang, Xuanxuan Han, Qiang Zhao, Danjun Wang, and Feng Fu. 2019. "2D In-Plane CuS/Bi2WO6 p-n Heterostructures with Promoted Visible-Light-Driven Photo-Fenton Degradation Performance" Nanomaterials 9, no. 8: 1151. https://doi.org/10.3390/nano9081151