Abedi Jondani, Mohammad Reza, Shariat, Mahdi, Sadeghzadeh Lari, Eshrat. (1404). Recyclable Ag-TiO₂ SERS Substrates Fabricated via Plasma Jet Printing. هنرهای کاربردی, 5(2), 209-216. doi: 10.22075/ppam.2025.37365.1145
Mohammad Reza Abedi Jondani; Mahdi Shariat; Eshrat Sadeghzadeh Lari. "Recyclable Ag-TiO₂ SERS Substrates Fabricated via Plasma Jet Printing". هنرهای کاربردی, 5, 2, 1404, 209-216. doi: 10.22075/ppam.2025.37365.1145
Abedi Jondani, Mohammad Reza, Shariat, Mahdi, Sadeghzadeh Lari, Eshrat. (1404). 'Recyclable Ag-TiO₂ SERS Substrates Fabricated via Plasma Jet Printing', هنرهای کاربردی, 5(2), pp. 209-216. doi: 10.22075/ppam.2025.37365.1145
Abedi Jondani, Mohammad Reza, Shariat, Mahdi, Sadeghzadeh Lari, Eshrat. Recyclable Ag-TiO₂ SERS Substrates Fabricated via Plasma Jet Printing. هنرهای کاربردی, 1404; 5(2): 209-216. doi: 10.22075/ppam.2025.37365.1145

Recyclable Ag-TiO₂ SERS Substrates Fabricated via Plasma Jet Printing

Progress in Physics of Applied Materials
مقاله 11، دوره 5، شماره 2 - شماره پیاپی 9، بهمن 2025، صفحه 209-216    اصل مقاله (1.26 M)
نوع مقاله: Original Article
شناسه دیجیتال (DOI): 10.22075/ppam.2025.37365.1145
نویسندگان
Mohammad Reza Abedi Jondani1؛ Mahdi Shariat* 1؛ Eshrat Sadeghzadeh Lari2
1Department of Physics, Faculty of Science, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
2Plasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute (NSTRI), Box 14155-1339, Tehran, Iran
چکیده
Recyclable surface-enhanced Raman scattering (SERS) substrates are important for real-world use because they can be used multiple times and are affordable. In this study, we developed a simple and low-cost method for fabricating recyclable SERS substrates by depositing silver nanoparticles onto TiO₂ nanostructures using an atmospheric pressure plasma jet without the need for chemical reducing or stabilizing agents. TiO₂ nanoparticles were synthesized via a sol-gel process and drop-cast onto glass substrates, followed by silver nanoparticle deposition through plasma jet printing. Structural analyses using XRD and FESEM confirmed the formation of anatase-phase TiO₂ and spherical Ag nanoparticles with tunable density. The SERS activity was optimized at a 60 s deposition time, and the substrates demonstrated strong plasmonic response and excellent reusability over five UV-assisted photocatalytic cleaning cycles using Rhodamine B and Methylene Blue. The substrates maintained over 80% of their initial Raman signal intensity, with no cross-contamination observed between analytes.  These results show that the Ag-TiO₂ substrates are very sensitive, stable, and can be reused, making them a practical option for real-world SERS applications.
کلیدواژه‌ها
Recyclable؛ Surface-Enhanced Raman Scattering (SERS)؛ Ag-TiO2 Nanocomposite؛ Plasma Jet
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