Improving Triethylamine-Sensing Performance of WO3 Nanoplates through In Situ Heterojunction Construction
Abstract
:1. Introduction
2. Experimental Section
2.1. Material Synthesis
2.2. Preparation of WO3 Nanoplates
2.3. Preparation of Nanoplates with ZnWO4/WO3 Surface Heterojunction
2.4. Microscopic Characterization
2.5. Gas Sensing Measurement
3. Gas Sensing Properties
4. Gas Sensing Mechanism
5. Conclusions
Author Contributions
Funding
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Sensor | R2 | K | n |
---|---|---|---|
WO3 | 0.9998 | 3.830 | 0.543 |
ZnWO4/WO3-0.01 | 0.9997 | 8.491 | 0.761 |
ZnWO4/WO3-0.1 | 0.9999 | 7.957 | 0.693 |
ZnWO4/WO3-0.5 | 0.9999 | 10.651 | 0.586 |
Material | Operation Condition | Concentration (ppm) | Response | tres/trec (s) | LOD (ppb) |
---|---|---|---|---|---|
Hierarchical CPDs/WO3 [26] | 140 °C | 40 | 14.6 | 267/340 | 46 |
0.8% rGO-WO3-ZnFe2O4 [27] | 130 °C | 10 | 26.92 | 51/144 | 20 |
Hierarchical WO3 Flower-like Spheres [28] | 205 °C | 10 | 11.6 | 3/55 | 83 |
Micro-flower WO3 [5] | 325 °C | 1 | 2.2 | 3/5 | 50 |
Carbon Modified WO3-W18O49 with PdO [29] | 325 °C | 100 | 35.7 | 1/2 | 50 |
WO3/h-BN-5wt% [30] | 260 °C | 500 | 390.6 | 8/60 | 41 |
Needle-Shaped WO3 [31] | 250 °C | 1 | 6.4 | 45/78 | 1000 |
WO3 Hollow Microspheres [32] | 220 °C | 60 | 16 | 1.5/22 | 50,000 |
Hierarchical Bi2O3/WO3 [33] | 140 °C | 50 | 9.2 | 89/162 | 32 |
Co&Ni Co-Doped W18O49 Nanourchins [34] | 250 °C | 50 | 154 | 16/13 | 1000 |
Layered Pt/PtO2-WO3 [35] | 137.5 °C | 50 | 3323.5 | 16/262 | 100 |
WO3/WS2 [36] | 240 °C | 50 | 21.81 | −/− | 3000 |
In-doped WO3 cubic nanoblocks [37] | 115 °C | 50 | 11.2 | 11/40 | 1000 |
ZnWO4/WO3-0.01 (This work) | 250 °C | 10 | 44.86 | 16/122 | 93 |
0.2 | 2.41 | 32/188 | |||
ZnWO4/WO3-0.1 (This work) | 250 °C | 10 | 38.72 | 13/113 | 81 |
0.2 | 2.89 | 26/178 | |||
ZnWO4/WO3-0.5 (This work) | 250 °C | 10 | 40.75 | 10/89 | 31 |
0.2 | 3.62 | 24/47 |
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Tian, K.; Yang, K.; Ren, X.; Miao, Y.; Liu, M.; Su, M.; Wu, J.; Sun, Y.; Xu, P. Improving Triethylamine-Sensing Performance of WO3 Nanoplates through In Situ Heterojunction Construction. Sensors 2024, 24, 5606. https://doi.org/10.3390/s24175606
Tian K, Yang K, Ren X, Miao Y, Liu M, Su M, Wu J, Sun Y, Xu P. Improving Triethylamine-Sensing Performance of WO3 Nanoplates through In Situ Heterojunction Construction. Sensors. 2024; 24(17):5606. https://doi.org/10.3390/s24175606
Chicago/Turabian StyleTian, Kuan, Kai Yang, Xuening Ren, Yuxin Miao, Mengyao Liu, Mingxing Su, Jiawen Wu, Yu’an Sun, and Pengcheng Xu. 2024. "Improving Triethylamine-Sensing Performance of WO3 Nanoplates through In Situ Heterojunction Construction" Sensors 24, no. 17: 5606. https://doi.org/10.3390/s24175606