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The application of 2D materials in gas sensing allows fabricating semiconductor adsorption sensors that operate without the need for heating. Another advantage is high performance. Nanocomposite based on 2D WS2/g-C3N4 materials was synthesized with one-step calcination method. Its surface morphology, phase composition, and absorption spectra were studied. To test the gas-sensing properties, the 2D WS2/g-C3N4 nanocomposite was exposed to isopropanol, ethanol, and acetone vapors at room temperature. The resulting nanocomposite contains graphite-like carbon nitride and tungsten disulfide phases. The nanocomposite band gap is 2.1 eV. The particles agglomeration was shown when nanocomposite powder applied to a glass substrate. The nanocomposite maximum response to 1000 ppm acetone is 5 %. The 2D WS2/g-C3N4 nanocomposite can be used in gas sensors for operation in explosive atmospheres, as well as in wearable flexible electronic devices.

Key words: 2D material, gas sensor, WS2/g-C3N4, gas sensitivity
Published in: ELECTRONICS MATERIALS
Bibliography link: Bui C. D., Nalimova S. S., Shomakhov Z. V., Samsygin P. F. Synthesis and gas sensing properties of 2D WS2/g-C3N4 nanocomposites. Izv. vuzov. Elektronika = Proc. Univ. Electronics. 2026;31(4):400–407. (In Russ.). DOI: 10.24151/1561-5405-2026-31-4-400-407.CJGSKM
Financial source: Acknowledgments: the authors would like to express their gratitude to the staff of the Scanning Probe Microscopy Center at Saint Petersburg Electrotechnical University for their assistance in conducting the experiment.

1. Wu R., Hao J., Wang Y. Recent advances in engineering of 2D layered metal chalcogenides for resistive-type gas sensor. Small. 2024;20(49):e2404821. https://doi.org/10.1002/smll.202404821

2. Liu Z., Qiao Z., Li C.-Y., Sun Y. Recent progress in multifunctional gas sensors based on 2D materials. Chemosensors. 2023;11(9):483. https://doi.org/10.3390/chemosensors11090483

3. Bhardwaj R., Pumera M. Surface-engineered 2D nanomaterials in gas sensors: Advancement and challenges. Small. 2025;21(34):e2410360. https://doi.org/10.1002/smll.202410360

4. Das S., Mojumder S., Saha D., Pal M. Influence of major parameters on the sensing mechanism of semiconductor metal oxide based chemiresistive gas sensors: A review focused on personalized healthcare. Sens. Actuators B. 2022;352:131066. https://doi.org/10.1016/j.snb.2021.131066

5. Налимова С. С., Мошников В. А., Шомахов З. В., Кондратьев В. М. Газовые сенсоры на основе наноструктур двойных и тройных оксидных систем. Известия высших учебных заведений России. Радиоэлектроника. 2024;27(2):105–118. https://doi.org/10.32603/1993-8985-2024-27-2-105-118. EDN: JRASCE.
Nalimova S. S., Moshnikov V. A., Shomakhov Z. V., Kondratev V. M. Gas sensors based on nanostructures of binary and ternary oxide systems. Izvestiya vysshikh uchebnykh zavedeniy Rossii. Radioelektronika = Journal of the Russian Universities. Radioelectronics. 2024;27(2):105–118. (In Russ.). https://doi.org/10.32603/1993-8985-2024-27-2-105-118

6. Налимова С. С., Шомахов З. В., Мошников В. А. Разработка слоев на основе оксида молибдена для полупроводниковых газовых датчиков. Изв. вузов. Электроника. 2024;29(2):139–146. https://doi.org/10.24151/1561-5405-2024-29-2-139-146. EDN: SVXGUG.
Nalimova S. S., Shomakhov Z. V., Moshnikov V. A. Development of layers based on molybdenum oxide for semiconductor gas sensors. Izv. vuzov. Elektronika = Proc. Univ. Electronics. 2024;29(2):139–146. (In Russ.). https://doi.org/10.24151/1561-5405-2024-29-2-139-146

7. Ko J.-K., Park I.-H., Hong K., Kwon K. C. Recent advances in chemoresistive gas sensors using two-dimensional materials. Nanomaterials. 2024;14(17):1397. https://doi.org/10.3390/nano14171397

8. Srinivasan P., Samanta S., Krishnakumar A., Rayappan J. B. B., Kailasam K. Insights into g-C3N4 as a chemi-resistive gas sensor for VOCs and humidity – a review of the state of the art and recent advancements. J. Mater. Chem. A. 2021;9(17):10612–10651. https://doi.org/10.1039/D0TA12500H

9. Bui C. D., Nalimova S. S., Nguyen V. T. A. Graphitic carbon nitride: Properties and applications in gas sensing. Review. Kondensirovannye sredy i mezhfaznye granitsy = Condensed Matter and Interphases. 2025;27(2):177–189. https://doi.org/10.17308/kcmf.2025.27/12763. EDN: BRGYOC.

10. Налимова С. С., Шомахов З. В., Морозова Н. А., Кондратьев В. М., Буй К. Д., Мошников В. А. Газочувствительные свойства наноструктур дисульфида молибдена. Неорганические материалы. 2025;61(1-2):111–117. https://doi.org/10.31857/S0002337X25010116. EDN: KFWYSU.
Nalimova S. S., Shomakhov Z. V., Morozova N. A., Kondratyev V. M., Bui K. D., Moshnikov V. A. Gas-sensitive properties of molybdenum disulphide nanostructures. Neorganicheskie materialy = Inorganic Materials. 2025;61:1–22. https://doi.org/10.31857/S0002337X250111e1

11. Налимова С. С., Мошников В. А. Новые материалы наноархитектоники. Нано- и микросистемная техника. 2025;27(2):55–67. https://doi.org/10.17587/nmst.27.55-67. EDN: AWZBXU.
Nalimova S. S., Moshnikov V. A. New materials of nanoarchitectonics. Nano- i mikrosistemnaya tekhnika = Nano- and Microsystems Technology. 2025;27(2):55–67. (In Russ.). https://doi.org/10.17587/nmst.27.55-67

12. Ikram M., Liu L., Liu Y., Ma L., Lv H., Ullah M. et al. Fabrication and characterization of a high-surface area MoS2@WS2 heterojunction for the ultra-sensitive NO2 detection at room temperature. J. Mater. Chem. A. 2019;7:14602–14612. https://doi.org/10.1039/C9TA03452H

13. Tian R., Ding Y., Wang Q., Song P. Designing advanced 2D/2D heterojunctions of MoS2 nanosheets/Ti3C2Tx MXene in gas-sensing applications. Vacuum. 2024;222:112991. https://doi.org/10.1016/j.vacuum.2024.112991

14. Liu Z., Lv H., Xie Y., Wang J., Fan J., Sun B. et al. A 2D/2D/2D Ti3C2Tx@TiO2@MoS2 heterostructure as an ultrafast and high-sensitivity NO2 gas sensor at room-temperature. J. Mater. Chem. A. 2022;10(22):11980–11989. https://doi.org/10.1039/D1TA09369J

15. Shin D. H., Choi Y. S., Park S. Y., Yeo C.-S., Park Y. Y. et al. Fast and complete recovery of TMDs-decorated rGO fiber gas sensors at room temperature. Appl. Surf. Sci. 2022;578:151832. https://doi.org/10.1016/j.apsusc.2021.151832

16. Zhao Y., Wang T., Li X., Fu Y., Zhao G., Wang X. Recent advance and perspectives in g-C3N4 based gas sensing materials: A review. Sens. Actuators A. 2023;355:114313. https://doi.org/10.1016/j.sna.2023.114313

17. Zhou Y., Wang S., Xin S., Sayin S., Yi Z., Li Z., Zaghloul M. Layer-dependent sensing performance of WS2-based gas sensors. Nanomaterials. 2024;14(2):235. https://doi.org/10.3390/nano14020235

18. Bhattacharyya P., Acharyya D. Impact of device configurations on sensing performance of WS2-based gas sensors: A review. IEEE Sens. J. 2021;21(20):22414–22425. https://doi.org/10.1109/JSEN.2021.3104615

19. Gnanaguru M. V. L., Naushad M., Tatarchuk T., Ghangrekar M. M., Chowdhury S. One-step calcination synthesis of 2D/2D g-C3N4/WS2 van der Waals heterojunction for visible light-induced photocatalytic degradation of pharmaceutical pollutants. Environ. Sci. Pollut. Res. 2023;30(32):78537–78553. https://doi.org/10.1007/s11356-023-27714-7

20. Ye L., Liu J., Jiang Z., Peng T., Zan L. Facets coupling of BiOBr-g-C3N4 composite photocatalyst for enhanced visible-light-driven photocatalytic activity. Appl. Catal. B. 2013;142–143:1–7. https://doi.org/10.1016/j.apcatb.2013.04.058

21. Peng K., Wang H., Li X., Wang J., Cai Z., Su L., Fan X. Emerging WS2/montmorillonite composite nanosheets as an efficient hydrophilic photocatalyst for aqueous phase reactions. Sci. Rep. 2019;9:16325. https://doi.org/10.1038/s41598-019-52191-9

22. Буй К. Д., Налимова С. С., Шомахов З. В., Самсыгин П. Ф. Синтез и газочувствительные свойства нанокомпозитов на основе 2D материалов g-C3N4 и WS2. In: Интеллектуальные системы и микросистемная техника: сб. трудов Науч.-практ. конф. (Кабардино-Балкария, пос. Эльбрус, 30 янв. – 04 февр. 2025 г.). М.: МИЭТ; 2025, с. 176–181. EDN: PVGJHN.
Bui C. D., Nalimova S. S., Shomakhov Z. V., Samsygin P. F. Synthesis and gas sensing properties of nanocomposites based on 2D materials g-C3N4 and WS2. In: Intellektualnyye sistemy i mikrosistemnaya tekhnika: proc. of International res.-to-pract. conf. (Jan. 30 – Feb. 04, 2025). Moscow: MIET; 2025, pp. 176–181. (In Russ.).

23. Sun Y., Zheng Y. A method of gas sensor drift compensation based on intrinsic characteristics of response curve. Sci. Rep. 2023;13:11971. https://doi.org/10.1038/s41598-023-39246-8

24. Zheng W., Liu X., Xie J., Lu G., Zhang J. Emerging van der Waals junctions based on TMDs materials for advanced gas sensors. Coord. Chem. Rev. 2021;447:214151. https://doi.org/10.1016/j.ccr.2021.214151

25. Gui Y., Lin Y., Ji C., Luo P., Chen X. Density functional theory calculations for the adsorption property of hazardous industrial gasses on transition-metal-modified MoS2 nanosheets. ACS Appl. Nano Mater. 2022;5(8):11111–11118. https://doi.org/10.1021/acsanm.2c02283

26. Nachimuthu S., Kuo Y.-H., Khanh D. H., Zhu Z.-J., Jiang J.-C. Density functional theory study on sensing properties of g-C3N4 sheet to atmospheric gasses: Role of zigzag and armchair edges. J. Chin. Chem. Soc. 2023;70(3):349–358. https://doi.org/10.1002/jccs.202200442

27. Poornimadevi C., Kala C. P., Thiruvadigal D. J. Industrial zone-based harmful gas sensor using pure WS2 via doping transition metals (Co, Ni) – a DFT approach. Phys. Scr. 2024;99(7):075245. https://doi.org/10.1088/1402-4896/ad55b4

28. Nalimova S. S., Shomakhov Z. V., Zyryanova O. D., Kondratev V. M., Bui C. D., Gurin S. A., Moshnikov V. A., Zhilenkov A. A. WO3−x/WS2 nanocomposites for fast-response room temperature gas sensing. Molecules. 2025;30(3):566. https://doi.org/10.3390/molecules30030566

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UDK: 621.382-022.532
Publication type: Scientific article
Source lang: Russian
DOI: 10.24151/1561-5405-2026-31-4-400-407
RISC id: CJGSKM

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