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Peer-reviewedCC BY-NC-NDScientific Reports

Modification of screen-printed carbon electrode with 2D MoS2 nanosheets/1D Bi2S3 nanorods heterostructures as voltammetric sensing platform for 2,4-dichlorophenol analysis in water samples

4 affiliations
  1. 1Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran. [email protected]
  2. 2Research Center of Tropical and Infectious Diseases, Kerman University of Medical Sciences, Kerman, Iran
  3. 3Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
  4. 4Department of Chemistry, Payame Noor University, Tehran, Iran

Abstract

In this paper, two-dimensional (2D) molybdenum disulfide nanosheets (MoS 2 NSs)/1D bismuth sulfide nanorods (Bi 2 S 3 NRs) heterostructures (MoS 2 NSs/Bi 2 S 3 NRs) were synthesized via the hydrothermal method and characterized with Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM) methods. Then, an electrochemical sensing platform based on a screen-printed carbon electrode modified with MoS 2 NSs/Bi 2 S 3 NRs heterostructures (MoS 2 NSs/Bi 2 S 3 NRs/SPCE) was designed as a useful platform for determining 2,4-dichlorophenol (DPN). The electrochemical determination of DPN was investigated utilizing different approaches such as chronoamperometry, cyclic voltammetry (CV), and differential pulse voltammetry (DPV). The developed MoS 2 NSs/Bi 2 S 3 NRs/SPCE sensor exhibited a remarkable enhancement in the peak current compared to unmodified SPCE and other modified SPCEs in CV studies. Under optimal operating conditions, the sensor demonstrated excellent analytical performance (high sensitivity of 0.175 µA/µM, linear concentration range from 0.002 to 280.0 µM, and limit of detection (LOD) of 0.001 µM for DPN detection. The results indicate that this MoS 2 NSs/Bi 2 S 3 NRs/SPCE sensor could provide an advantageous platform for sensitive and rapid detection of DPN in water samples.

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BibTeX
@article{beitollahi2026modification,
  title = {{Modification of screen-printed carbon electrode with 2D MoS2 nanosheets/1D Bi2S3 nanorods heterostructures as voltammetric sensing platform for 2,4-dichlorophenol analysis in water samples}},
  author = {Hadi Beitollahi and Somayeh Tajik and Fariba Garkani Nejad and Sayed Zia Mohammadi},
  journal = {Scientific Reports},
  year = {2026},
  month = may,
  doi = {10.1038/s41598-026-54108-9},
  url = {https://doi.org/10.1038/s41598-026-54108-9},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Modification of screen-printed carbon electrode with 2D MoS2 nanosheets/1D Bi2S3 nanorods heterostructures as voltammetric sensing platform for 2,4-dichlorophenol analysis in water samples
AU  - Hadi Beitollahi
AU  - Somayeh Tajik
AU  - Fariba Garkani Nejad
AU  - Sayed Zia Mohammadi
PY  - 2026
DA  - 2026/05/26
JO  - Scientific Reports
DO  - 10.1038/s41598-026-54108-9
UR  - https://doi.org/10.1038/s41598-026-54108-9
AB  - In this paper, two-dimensional (2D) molybdenum disulfide nanosheets (MoS 2 NSs)/1D bismuth sulfide nanorods (Bi 2 S 3 NRs) heterostructures (MoS 2 NSs/Bi 2 S 3 NRs) were synthesized via the hydrothermal method and characterized with Fourier transform infrared (FT-IR) spectroscopy, X-ray diffraction (XRD), and transmission electron microscopy (TEM) methods. Then, an electrochemical sensing platform based on a screen-printed carbon electrode modified with MoS 2 NSs/Bi 2 S 3 NRs heterostructures (MoS 2 NSs/Bi 2 S 3 NRs/SPCE) was designed as a useful platform for determining 2,4-dichlorophenol (DPN). The electrochemical determination of DPN was investigated utilizing different approaches such as chronoamperometry, cyclic voltammetry (CV), and differential pulse voltammetry (DPV). The developed MoS 2 NSs/Bi 2 S 3 NRs/SPCE sensor exhibited a remarkable enhancement in the peak current compared to unmodified SPCE and other modified SPCEs in CV studies. Under optimal operating conditions, the sensor demonstrated excellent analytical performance (high sensitivity of 0.175 µA/µM, linear concentration range from 0.002 to 280.0 µM, and limit of detection (LOD) of 0.001 µM for DPN detection. The results indicate that this MoS 2 NSs/Bi 2 S 3 NRs/SPCE sensor could provide an advantageous platform for sensitive and rapid detection of DPN in water samples.
SN  - 2045-2322
ER  -