High-Performance MoSe2-Modified Screen-Printed Electrochemical Sensor for Trace-Level Determination of 2-Aminophenol in Aquatic Samples
Analytical Letters, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1080/00032719.2026.2723217
- Dergi Adı: Analytical Letters
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, BIOSIS, Chemical Abstracts Core, Chimica, Academic Search Ultimate (EBSCO), Biomedical Reference Collection: Corporate Edition (EBSCO)
- Anahtar Kelimeler: 2-Aminophenol, differential pulse voltammetry, electrochemical analysis, environmental monitoring, molybdenum diselenide, portable sensor
- Erciyes Üniversitesi Adresli: Evet
Özet
In this study, a molybdenum diselenide (MoSe2) nanocomposite was fabricated using a hydrothermal method, which offers a simple, cost-effective, and scalable route for material synthesis. The synthesized material was deposited onto the surface of a screen-printed carbon electrode (SPCE) using the drop-casting method. Various characterization techniques, including Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy coupled with energy-dispersive X-ray spectroscopy (SEM-EDX), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS), were employed to evaluate the functional groups, crystal structure, surface morphology and elemental composition, and electron-transfer properties of the fabricated material, respectively. The results revealed that the MoSe2/SPCE-modified electrode exhibited significantly lower charge-transfer resistance than the bare SPCE, indicating faster electron-transfer kinetics and a more conductive interfacial environment. Under optimized experimental conditions, the developed sensor achieved a low limit of detection (LOD) of 0.0045 μM for 2-aminophenol (2-AP), with a wide linear dynamic range of 0.2–90 μM using the differential pulse voltammetry (DPV) technique. The developed sensor also demonstrated excellent selectivity, stability, and repeatability. Furthermore, for the detection of 2-AP in environmental samples, the MoSe2/SPCE sensor exhibited satisfactory recovery values ranging from 97.7% to 103.4%, confirming its reliability and suitability for practical environmental monitoring applications.