Thermally Driven Phase Transformation and Structural Evolution of Hydrothermally Synthesized MoS2

Authors

  • Muhammad Saukani Department of Mechanical Engineering, Universitas Islam Kalimantan MAB Banjarmasin https://orcid.org/0000-0001-5901-5205
  • Yuli Panca Asmara Department of Mechanical Engineering, Faculty of Engineering, Universitas Islam Kalimantan MAB, Jalan Adyaksa, Banjarmasin, 70124, Indonesia. https://orcid.org/0000-0001-6930-0771
  • Lutvi Vitria Kadarwati International Ph.D. Program in Biomedical Engineering, College of Biomedical Engineering, Taipei Medical University, Taipei City 110, Taiwan
  • Sadang Husain Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Lambung Mangkurat, Banjarbaru, Indonesia. https://orcid.org/0000-0002-7879-6542

DOI:

https://doi.org/10.26740/jpfa.v16n1.p1-10

Keywords:

Phase Transformation, 1T-MoS2, 2H-MoS2, hydrothermal synthesis

Abstract

Molybdenum disulfide (MoS2) is a transition-metal dichalcogenide with tunable physicochemical properties, making it highly suitable for applications in energy conversion, electronics, and environmental remediation. This study investigates the thermally driven phase transformation and structural evolution of MoS2 synthesized via the hydrothermal method. The aim is to explore the phase transition as a function of annealing temperature. XRD and Raman spectroscopy were used to monitor the crystal and phase changes, while SEM and TEM were used to analyze the material morphology. The results showed that the synthesized MoS2 predominantly exhibited the 1T phase, as evidenced by the characteristic Raman peaks. After annealing at 300°C, a complete transformation to the 2H phase occurred, with increased crystallinity and a well-defined trigonal prismatic structure. SEM and TEM analyses revealed that the phase transformation did not significantly alter the material morphology, which retained its flower-like structure. These findings emphasize the importance of controlling phase transformations to optimize material properties, contributing to a broader understanding of MoS2 in various technological fields.

References

[1] A. Singh, D. S. Baji, S. Nair, and D. Santhanagopalan, “MoS2 for Battery and Supercapacitor Applications,” in Science and Technology of 2D MoS2, D. J. Late and C. S. Rout, Eds., Singapore: Springer Nature, 2024, pp. 205–229. doi: 10.1007/978-981-97-7367-1_12.

[2] Y. Jiao, A. M. Hafez, D. Cao, A. Mukhopadhyay, Y. Ma, and H. Zhu, “Metallic MoS2 for High Performance Energy Storage and Energy Conversion,” Small, vol. 14, no. 36, p. 1800640, 2018, doi: 10.1002/smll.201800640.

[3] O. Samy and A. El Moutaouakil, “A Review on MoS2 Energy Applications: Recent Developments and Challenges,” Energies, vol. 14, no. 15, p. 4586, Jan. 2021, doi: 10.3390/en14154586.

[4] Z. Lei, J. Zhan, L. Tang, Y. Zhang, and Y. Wang, “Recent Development of Metallic (1T) Phase of Molybdenum Disulfide for Energy Conversion and Storage,” Advanced Energy Materials, vol. 8, no. 19, p. 1703482, 2018, doi: 10.1002/aenm.201703482.

[5] H. Zhao, J.-H. Lin, H.-T. Ren, H. Peng, C.-W. Lou, and T.-T. Li, “Triboelectric Nanogenerator based on superstructure MoS2 for energy harvesting and human sensing,” Chemical Engineering Journal, vol. 505, p. 159107, Feb. 2025, doi: 10.1016/j.cej.2024.159107.

[6] R. Thayil, S. R. Parne, and C. v. Ramana, “2D MoS2 for Next-Generation Electronics and Optoelectronics: From Material Properties to Manufacturing Challenges and Future Prospects,” Small, vol. 21, no. 14, p. 2412467, 2025, doi: 10.1002/smll.202412467.

[7] Y. Chen, T. Pham, and A. Mulchandani, “2D MoS2-based flexible optoelectronic for biosensing,” Sensors and Actuators B: Chemical, vol. 439, p. 137848, Sep. 2025, doi: 10.1016/j.snb.2025.137848.

[8] X. Fan, Z. Chen, and Y. Yao, “A high-performance room-temperature NO2 gas sensor based on MoS2/MoOx multiphase heterojunction: Achieving fast response and low detection limit,” Materials Science in Semiconductor Processing, vol. 207, p. 110499, Jun. 2026, doi: 10.1016/j.mssp.2026.110499.

[9] Z. Wang and B. Mi, “Environmental Applications of 2D Molybdenum Disulfide (MoS2) Nanosheets,” Environ. Sci. Technol., vol. 51, no. 15, pp. 8229–8244, Aug. 2017, doi: 10.1021/acs.est.7b01466.

[10] L. Zang, M. Wang, Q. Han, and Z. Wang, “Phase-Dependent Properties and Applications of MoS2 in Environmental Remediation: Synthesis, Characterization, and Performance Optimization,” ACS EST Water, vol. 4, no. 11, pp. 4690–4707, Nov. 2024, doi: 10.1021/acsestwater.4c00501.

[11] J. Qin, J. Zhang, G. Jin, R. Xu, C. Wang, and B. Pan, “Cobalt-doped MoS2 catalysts for enhanced peroxymonosulfate activation: Efficient degradation of micropollutants via superoxide radical-dominated pathways,” Molecular Catalysis, vol. 586, p. 115417, Nov. 2025, doi: 10.1016/j.mcat.2025.115417.

[12] C. Mutalik et al., “Phase-Dependent MoS2 Nanoflowers for Light-Driven Antibacterial Application,” ACS Sustainable Chem. Eng., vol. 9, no. 23, pp. 7904–7912, Jun. 2021, doi: 10.1021/acssuschemeng.1c01868.

[13] S. R. Ali and M. De, “Defect-Engineered Functionalized MoS2 Quantum Dots with Enhanced Antibacterial Activity,” ACS Appl. Nano Mater., vol. 6, no. 3, pp. 2193–2202, Feb. 2023, doi: 10.1021/acsanm.2c05452.

[14] M. Liu, H. Zhu, Y. Wang, C. Sevencan, and B. L. Li, “Functionalized MoS2-Based Nanomaterials for Cancer Phototherapy and Other Biomedical Applications,” ACS Materials Lett., vol. 3, no. 5, pp. 462–496, May 2021, doi: 10.1021/acsmaterialslett.1c00073.

[15] C. Mutalik et al., “Phase-Dependent 1T/2H-MoS2 Nanosheets for Effective Photothermal Killing of Bacteria,” ACS Sustainable Chem. Eng., vol. 10, no. 27, pp. 8949–8957, Jul. 2022, doi: 10.1021/acssuschemeng.2c02457.

[16] G. Wu, Z. Wu, L. Liu, W. Cui, D. Du, and Y. Xue, “NIR light responsive MoS2 nanomaterials for rapid sterilization: Optimum photothermal effect via sulfur vacancy modulation,” Chemical Engineering Journal, vol. 427, p. 132007, Jan. 2022, doi: 10.1016/j.cej.2021.132007.

[17] Y. Yao, K. Ao, P. Lv, and Q. Wei, “MoS2 Coexisting in 1T and 2H Phases Synthesized by Common Hydrothermal Method for Hydrogen Evolution Reaction,” Nanomaterials, vol. 9, no. 6, p. 844, Jun. 2019, doi: 10.3390/nano9060844.

[18] P. C. Kumar, S. M. Jeong, R. Naik, and C. S. Rout, “Rhombohedral 3R MoS2 Polytype: A Promising Fundamental Material for Next-Generation Device Applications,” Small, vol. 21, no. 41, p. 2504644, 2025, doi: 10.1002/smll.202504644.

[19] G. Eda, H. Yamaguchi, D. Voiry, T. Fujita, M. Chen, and M. Chhowalla, “Photoluminescence from Chemically Exfoliated MoS2,” Nano Lett., vol. 11, no. 12, pp. 5111–5116, Dec. 2011, doi: 10.1021/nl201874w.

[20] M. Zhang et al., “Visible light-induced antibacterial effect of MoS2: Effect of the synthesis methods,” Chemical Engineering Journal, vol. 411, p. 128517, May 2021, doi: 10.1016/j.cej.2021.128517.

[21] H. Chen et al., “Metallic phase enabling MoS2 nanosheets as an efficient sonosensitizer for photothermal-enhanced sonodynamic antibacterial therapy,” J Nanobiotechnol, vol. 20, no. 1, p. 136, Mar. 2022, doi: 10.1186/s12951-022-01344-6.

[22] L. Devendar, V. Yadav, B. Pothal, K. L. Ganapathi, and M. Jaiswal, “CVD growth of large-area, continuous, and defect-free MoS2 multilayer films from solution-cast seed nanoflakes,” Surfaces and Interfaces, vol. 50, p. 104470, Jul. 2024, doi: 10.1016/j.surfin.2024.104470.

[23] Y. J. Cho, Y. Sim, J.-H. Lee, N. T. Hoang, and M.-J. Seong, “Size and shape control of CVD-grown monolayer MoS2,” Current Applied Physics, vol. 45, pp. 99–104, Jan. 2023, doi: 10.1016/j.cap.2022.11.008.

[24] Y. Gao et al., “Scalable Bottom-Up Synthesis of High-Purity 1T-MoS2 Assisted by Na2SO4 Template,” Small, vol. 21, no. 27, p. 2500529, 2025, doi: 10.1002/smll.202500529.

[25] Y. Guo, X. Fu, and Z. Peng, “Growth and Mechanism of MoS2 Nanoflowers with Ultrathin Nanosheets,” Journal of Nanomaterials, vol. 2017, no. 1, p. 6865282, 2017, doi: 10.1155/2017/6865282.

[26] S. Jiménez Sandoval, D. Yang, R. F. Frindt, and J. C. Irwin, “Raman study and lattice dynamics of single molecular layers of MoS2,” Phys. Rev. B, vol. 44, no. 8, pp. 3955–3962, Aug. 1991, doi: 10.1103/PhysRevB.44.3955.

[27] H. Li et al., “From Bulk to Monolayer MoS2: Evolution of Raman Scattering,” Advanced Functional Materials, vol. 22, no. 7, pp. 1385–1390, 2012, doi: 10.1002/adfm.201102111.

[28] B. Chakraborty, H. S. S. R. Matte, A. K. Sood, and C. N. R. Rao, “Layer-dependent resonant Raman scattering of a few layer MoS2,” Journal of Raman Spectroscopy, vol. 44, no. 1, pp. 92–96, 2013, doi: 10.1002/jrs.4147.

[29] C.-J. Chang, Z.-T. Tsai, K.-S. Lin, and Y.-H. Nian, “Enhanced photocatalytic H2 production of flower-like MoS2@Ag2S photocatalysts with matched band structures,” Journal of Photochemistry and Photobiology A: Chemistry, vol. 445, p. 115027, Nov. 2023, doi: 10.1016/j.jphotochem.2023.115027.

[30] M. T. Pham et al., “MoS2 flower-like architecture with enhanced photocatalytic performance for degradation of organic dyes under sunlight simulation,” Res Chem Intermed, vol. 51, no. 12, pp. 7263–7281, Dec. 2025, doi: 10.1007/s11164-025-05772-5.

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Published

2026-06-30

How to Cite

Saukani, M. (2026) “Thermally Driven Phase Transformation and Structural Evolution of Hydrothermally Synthesized MoS2”, Jurnal Penelitian Fisika dan Aplikasinya (JPFA), 16(1), pp. 1–10. doi: 10.26740/jpfa.v16n1.p1-10.
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