PLAL tekniği ile üretilen CdS nanopartiküllerinin fotokatalizör etkisi

Öz

Bu çalışmada, CdS nanopartikülleri damıtılmış suda PLAL tekniği kullanılarak üretilmiştir. CdS nanopartiküllerinin optik, kristalin ve morfolojik özellikleri ayrıntılı olarak karakterize edilmiştir. Sentezlenen CdS nanopartikülleri, yaygın olarak karşılaşılan bir organik kirletici olan MB boyasının bozunması için fotokatalizör olarak kullanılmıştır. MB boyasının bozunması için fotokatalitik verimliliğin, görünür ışık altında 160 dakika sonra boyanın tamamen şeffaf bir duruma dönüşmesiyle önemli olduğu bulunmuştur. 664 nm dalga boyunda MB boyasının emilim pikinin yoğunluğunda belirgin bir azalma gözlenmiştir ve bu, bozunma sürecinin ilerlediğini göstermektedir. Bozunma verimliliği, verilen deneysel koşullar altında sistemin fotokatalitik performansını değerlendirmek için kapsamlı bir çerçeve sağlayan Langmuir-Hinshelwood birinci dereceden kinetik modeli kullanılarak nicelendirilmiştir. Ek olarak, organik kirleticinin fotokatalitik bozunma verimliliği, pH = 7 ve pH = 10 olmak üzere iki farklı pH değerinde nicelendirilmiş ve karşılaştırılmıştır.

Anahtar Kelimeler

• CdS
• nanopartikül
• PLAL
• fotokatalitik
• MB boyası

Photocatalyst Effect of CdS Nanoparticles Produced by PLAL Technique

Öz

In this study, CdS nanoparticles were produced in distilled water using PLAL technique. The optical, crystalline, and morphological properties of the CdS nanoparticles were thoroughly characterized. The synthesized CdS nanoparticles were employed as photocatalysts for the degradation of MB dye, a commonly encountered organic pollutant. The photocatalytic efficiency for the degradation of MB dye was found to be significant after 160 minutes, under visible light irradiation, with the dye undergoing complete discoloration to a transparent state. A pronounced decrease in the intensity of the absorption peak of MB dye at a wavelength of 664 nm was observed, indicating the progression of the degradation process. The degradation efficiency was quantified using Langmuir-Hinshelwood first-order kinetic model, which provides a comprehensive framework for evaluating the photocatalytic performance of the system under the given experimental conditions. In the presence of CdS nanoparticle catalyst, the photocatalyst degradation efficiency and the rate constant, which has been calculated as 88.12% and 0.0124 min-1 for pH=10 of MB solution. respectively Additionally, the photocatalytic degradation efficiency of the organic pollutant was quantified and compared at three different pH values: pH=4, pH = 7 and pH = 10.

Anahtar Kelimeler

• CdS
• Nanoparticle
• PLAL
• Photocatalytic
• MB dye

Kaynakça

1. Balachandran, A., Sreenilayam, S. P., Madanan, K., Thomas, S., & Brabazon, D. (2022). Nanoparticle production via laser ablation synthesis in solution method and printed electronic application-A brief review. Results in Engineering, 16, 100646.
2. Bhadwal, A., Tripathi, R., Gupta, R., Kumar, N., Singh, R., & Shrivastav, A. (2014). Biogenic synthesis and photocatalytic activity of CdS nanoparticles. RSC Adv 4: 9484–9490. In.
3. Chang, S.-K., Abbasi, Z., Khushbakht, F., Ullah, I., Rehman, F. U., & Hafeez, M. (2024). Rapid pH-dependent photocatalytic degradation of methylene blue by CdS nanorods synthesized through hydrothermal process. Arabian Journal of Chemistry, 17(1), 105422.
4. Chen, Y., Ma, D., He, G., & Pan, S. (2024). Effects of pH on the photocatalytic activity and degradation mechanism of Rhodamine B over fusiform Bi photocatalysts under visible light. Water, 16(17), 2389.
5. Cheng, L., Xiang, Q., Liao, Y., & Zhang, H. (2018). CdS-based photocatalysts. Energy & Environmental Science, 11(6), 1362-1391.
6. Costa, D. C., Fernandes, M., Moura, C., Miranda, G., Silva, F., Carvalho, Ó., & Madeira, S. (2025). Laser ablation in liquid-assisted synthesis of three types of nanoparticles for enhanced antibacterial applications. International Journal of Precision Engineering and Manufacturing-Green Technology, 1-19.
7. Dey, P. C., & Das, R. (2017). Photoluminescence quenching in ligand free CdS nanocrystals due to silver doping along with two high energy surface states emission. Journal of Luminescence, 183, 368-376.
8. Gezgin, S. Y., Baturay, Ş., Köylü, M. Z., Kabatas, M. A. B.-M., & Kiliç, Ş. (2025). Cu₂Sn₁₋ ₓGdₓS₃ Thin Films for Photocatalytic Degradation of Methylene Blue. Nanoscale Advances.

9. Gezgin, S. Y., Kepceoğlu, A., & Kılıç, H. Ş. (2017). An investigation of localised surface plasmon resonance (LSPR) of Ag nanoparticles produced by pulsed laser deposition (PLD) technique. Paper presented at the AIP Conference Proceedings.
10. Gobinath, J., Gowthaman, P., Venkatachalam, M., Saroja, M., & Sathishkumar, M. (2020). Effect of annealing temperature on the structural, optical and dye degradation properties of cadmium sulfide thin films. Materials Today: Proceedings, 33, 1-6.
11. Guo, Y., Zhou, C., Fang, L., Liu, Z., Li, W., & Yang, M. (2021). Effect of pH on the catalytic degradation of rhodamine B by synthesized CDs/g-C3N4/Cu x O composites. ACS omega, 6(12), 8119-8130.
12. Haque, S. E., Ramdas, B., Padmavathy, N., & Sheela, A. (2014). Facile one‐pot low‐temperature solid‐state approach towards phase transformation of nanoCdS. Micro & Nano Letters, 9(10), 731-735.
13. Hemmatpour, P., Nezamzadeh-Ejhieh, A., & Ershadi, A. (2025). A photodegradation study of the deposition fabricated CdS–BiVO 4 binary catalyst: a brief comparison with other fabrication procedures. Materials Advances, 6(12), 3969-3984.
14. Houimi, A., Yiğit Gezgin, S., & Kılıç, H. Ş. (2022). Theoretical analysis of solar cell performance with different backsurface‐filed layers utilizing experimental results of CdS Films deposited by pulsed laser. physica status solidi (a), 219(11), 2100780.
15. Jie, L., Gao, X., Cao, X., Wu, S., Long, X., Ma, Q., & Su, J. (2024). A review of CdS photocatalytic nanomaterials: Morphology, synthesis methods, and applications. Materials Science in Semiconductor Processing, 176, 108288.
16. Kişnişci, Z., Özel, F., Tuğluoğlu, N., & Yüksel, Ö. F. (2024). Structural and optical properties of Cu2ZnSnSe4 nanocrystals thin film. Optical and Quantum Electronics, 56(7), 1239.
17. Kişnişci, Z., Özel, F., Yüksel, Ö., & Tuğluoğlu, N. (2016). Optical characterization of Cu2ZnSnS4 nanocrystals thin film. Journal of Materials Science: Materials in Electronics, 27(10), 10128-10135.
18. Li, B., Xiao, Y., Qi, Z., Chang, S., Yu, M., Xu, Z., ... & Lv, K. (2025). Enhanced photocatalytic H 2 production of CdS by the introduction of Cd vacancies. Chemical Communications, 61(80), 15630-15633.
19. Saint, U. K., Baral, S. C., Sasmal, D., Maneesha, P., Datta, S., Naushin, F., & Sen, S. (2025). Effect of pH on photocatalytic degradation of Methylene Blue in water by facile hydrothermally grown TiO2 Nanoparticles under Natural Sunlight. JCIS Open, 100150.
20. Seyghalkar, H., Sabet, M., & Salavati-Niasari, M. (2016). Synthesis and characterization of cadmium sulfide nanoparticles via a simple thermal decompose method. High Temperature Materials and Processes, 35(10), 1013-1016.
21. Shelke, H. D., Machale, A. R., Survase, A. A., Pathan, H. M., Lokhande, C. D., Lokhande, A. C., . . . Palaniswami, M. (2022). Multifunctional Cu2SnS3 nanoparticles with enhanced photocatalytic dye degradation and antibacterial activity. Materials, 15(9), 3126.
22. Ullah, H., Vishlaghi, M. B., Balkan, T., ur Rehman, Z., & Kaya, S. (2021). Scaling-up photocatalytic activity of CdS from nanorods to nanowires for the MB degradation. Inorganic Chemistry Communications, 130, 108744.
23. Yu, Z., Yin, B., Qu, F., & Wu, X. (2014). Synthesis of self-assembled CdS nanospheres and their photocatalytic activities by photodegradation of organic dye molecules. Chemical Engineering Journal, 258, 203-209.
24. Zajac, W., Rozycka, A., & Trenczek-Zajac, A. (2023). Rational design of the electronic structure of CdS nanopowders. Inorganic Chemistry, 62(28), 10955-10964.
25. Zhao, J., Yang, H., Li, Y., & Lu, K. (2020). Photocatalytic activity of CdS nanoparticles enhanced by the interaction between piezotronic effect and phase junction. Journal of Alloys and Compounds, 815, 152494.