Generate QR code
Open Access
Subscription Access
Plasma-Assisted Preparation of Graphene Oxide-Based Nanocomposites and their Optical Properties
Abstract
GO-SiO2, GO-TiO2, and GO-ZnO nanocomposites were synthesized via sol-gel and ultrasonic dispersion processes and then coated on glass substrates using spray pyrolysis and plasma jet-assisted spray pyrolysis. The primary objective was to investigate the influence of atmospheric-pressure plasma activation on the morphological evolution and electronic band structure of these nanocomposites. Results of XRD and FTIR analyses showed that plasma treatment induced a partial reduction of Graphene oxide (GO) into rGO (indicated by a peak at 27°) and increased the density of oxygen-containing functional groups, leading to significantly better interfacial adhesion and stability. The absence of distinct metallic oxide peaks in the XRD patterns suggests their existence in an amorphous or ultra-fine nanocrystalline state. Field emission scanning electron microscopy and energy dispersive X-ray spectroscopy confirmed that the SiO2, TiO2, and ZnO particles were evenly distributed, with plasma preventing local aggregation. Investigation of the optical properties via UVVis and photoluminescence (PL) spectroscopy indicated that the plasma treatment profoundly affected the electronic structure, reducing the energy gap (Eg) from 2.18 and 2.87 eV to 1.15 and 1.50 eV for GO-SiO2 and GO-TiO2, respectively. The plasma-treated samples exhibited higher PL intensity, signifying increased radiative recombination; this enhancement positions these materials as excellent candidates for luminescent downshifting layers. In this capacity, the films act as spectral converters that optimize the spectral response of photovoltaic systems, making them highly suitable for advanced optoelectronic and sensor applications.
Keywords
About the Authors
Mohammed Yarub Hani
Department of Medical Biochemistry, College of Applied Medical Sciences
Iraq
Iraq
Karbala
Ali F. Al-Rawaf
Department of Physics, College of Education for Pure Science, University of Kerbala; Department of Anesthesia Techniques, Alsafwa University College
Iraq
Iraq
Karbala
Aqeel Adil Hasan
Department of Anesthesia Techniques, Alsafwa University College; General Directorate of Education in Karbala, Iraqi Ministry of Education
Iraq
Iraq
Karbala
References
1. A. Razaq, F. Bibi, X. Zheng, et al., Materials, 15, No. 3, 1012 (2022).
2. N. I. M. Fauzi, Y. W. Fen, J. Abdullah, et al., Photonics, 9, No. 5, 300 (2022).
3. A. S. Hussein, S. Dulaimi, B. A. J. Al-Asady, et al., J. Mater. Sci.: Mater. Electron., 36, 2080 (2025), https://doi.org/10.1007/s10854-025-16110-1.
4. K. Bilisik, M. Akter, J. Ind. Textiles, 51, No. 3, 3718–3766 (2022).
5. K. Zeranska, K. Filak, K. Wilczynski, et al., ACS Appl. Electron. Mater., 4, No. 9, 4463–4470 (2022).
6. K. Müller, E. Bugnicourt, M. Latorre, et al., Nanomaterials, 7, No. 4, 74 (2017).
7. M. A. Al Faruque, M. Syduzzaman, J. Sarkar, et al., Nanomaterials, 11, No. 9, 2414 (2021).
8. J. Carneiro de Oliveira, A. Airoudj, P. Kunemann, et al., Appl. Sci., 3, No. 6, 656 (2021).
9. Y. Tong, S. Bohm, M. Song, Austin J. Nanomedicine & Nanotechnology, 1, No. 1, 1003–1019 (2013).
10. W. D. Hussain, M. H. Jawad, S. F. Khaleel, et al., Russ. Phys. J., 68, No. 10, 1750–1757 (2025), https://doi.org/10.1007/s11182-025-03615-9.
11. R. Thejas, C. Naveen, M. I. Khan, et al., Biomass Conversion and Biorefinery, 14, No. 12, 12625–12635 (2024).
12. A. Ibrahim, A. Klopocinska, K. Horvat, et al., Polymers, 13, No. 17, 2869 (2021).
13. H. Sadabadi, O. Ghaderi, A. Kordijazi, et al., J. Metals, Materials and Minerals, 32, No. 3, 1–14 (2022).
14. S. H. B. Vinoth Kumar, R. Muydinov, B. Szyszka, Nanomaterials, 11, No. 2, 382 (2021).
15. T. Dufour, Polymers, 15, No. 17, 3607 (2023).
16. M. H. Jawad, M. R. Abdulameer, Lasers Manuf. Mater. Process, 13, No. 1, 1–22 (2025), https://doi.org/10.1007/s40516-025-00322-8.
17. A. S. Noori, K. A. Aadim, A. H. Hussein, Iraq. J. Sci., 63, No. 6, 2461–2469 (2022), https://doi.org/10.24996/ijs.2022.63.6.13.
18. S. R. A. Kumar, D. V. Mary, G. S. Josephine, et al., Hybrid Adv., 5, 100168 (2024).
19. C. Gao, K. Zhong, X. Fang, et al., Energies, 14, No. 19, 6403 (2021).
20. X. Fu, J. Lin, Z. Liang, et al., Surf. Interfaces, 37, 102747 (2023), https://doi.org/10.1016/j.surfin.2023.102747.
21. A. Nasir, S. Khalid, T. Yasin, et al., Energies, 15, No. 17, 6248 (2022).
22. I. H. Ali, R. T. Kadhim, D. F. A. Alasady, et al., Theor. Exp. Chem., 61, 148–154 (2025), https://doi.org/10.1007/s11237-025-09861-9.
23. W. S. Pak, K. H. Ko, J. H. Ri, et al., Int. J. Electrochem. Sci., 20, No. 1, 100918 (2025).
24. M. Q. Fahema, H. N. Mohsion, Z. T. Turkib, H. A. R. Abdullah, M. H. Jawada, J. Ovonic Res., 21, No. 4, 419–430 (2025), https://doi.org/10.15251/JOR.2025.214.419.
25. M. H. Jawad, M. Abdulameer, Eurasian Phys. Tech. J., 22, No. 3, 75–83 (2025), https://doi.org/10.31489/2025N3/75-83.
26. R. S. Mohammed, K. A. Aadim, K. A. Ahmed, AIP Conf. Proc., 2386, No. 1, 080050 (2022), https://doi.org/10.1063/5.0066788.
27. R. H. Ellerbrock, H. H. Gerke, J. Plant Nutr. and Soil Sci., 184, No. 3, 388–397 (2021).
28. E. Aliyev, V. Filiz, M. M. Khan, et al., Nanomaterials, 9, No. 8, 1180 (2019).
29. G. Surekha, K. V. Krishnaiah, N. Ravi, et al., J. Physics: Conf. Ser., 1495, No. 1, 012012 (2020).
30. A. S. Hussein, F. S. O. Al Jasmi, M. H. Jawad, et al., Silicon, 18, 739–750 (2025), https://doi.org/10.1007/s12633-025-03553-8.
31. J. Zhuang, M. Li, Y. Pu, et al., Appl. Sci., 10, No. 12, 4345 (2020).
32. N. I. M. Fauzi, Y. W. Fen, N. A. S. Omar, et al., Polymers, 12, No. 7, 1497 (2020).
33. A. Pielesz, C. Ślusarczyk, M. Sieradzka, et al., Nanotechnology, Science and Applications, 221–235 (2021).
34. M. M. Sanad, N. K. Meselhy, H. A. El-Boraey, et al., J. Mater. Res. and Technol., 23, 1528–1542 (2023).
35. M. H. Jawad, M. R. Abdulameer, Int. Acad. J. Sci. and Eng., 9, No. 2, 28–36 (2022), https://iaiest.com/iaj/index.php/IAJSE/article/view/IAJSE0911.
36. H. Naji Mohsion, B. Afif, B. Abdul-Jaleel Al-Asady, et al., Int. J. Mod. Phys. B, 40, No. 6, 2650054 (2026), https://doi.org/10.1142/S0217979226500542.
37. M. R. Kumar, G. Murugadoss, N. Venkatesh, et al., Chem. Sel., 5, No. 23, 6946–6953 (2020).
38. Y. Q. Almajidi, Z. H. Mahdi, N. K. Maraie, Int. J. Appl. Pharm., 10, No. 5, 49–53 (2018).
39. M. T. Kareem, S. A. A. Al-Hussein, B. Afif, et al., Int. J. Mod. Phys. B, 2650037 (2026), https://doi.org/10.1142/S0217979226500372.
40. G. O. Mendoza Conde, J. A. Luna López, Z. J. Hernández Simón, et al., Nanomaterials, 13, No. 7, 1271 (2023).
41. I. H. Ali, M. H. Jawad, Z. T. Turki, et al., Russ. Phys. J., 68, No. 12 2205–2214 (2026), https://doi.org/10.1007/s11182-026-03670-w.
Review
For citations:
Hani M., Al-Rawaf A., Hasan A. Plasma-Assisted Preparation of Graphene Oxide-Based Nanocomposites and their Optical Properties. Zhurnal Prikladnoii Spektroskopii. 2026;93(5):726.
Views:
3
JATS XML
Email this article 