An electrochemical detection method for polyvinyl chloride microplastics in water bodies

IF 4 2区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Molecular Structure Pub Date : 2025-03-15 DOI:10.1016/j.molstruc.2025.142086

Ozge Surucu

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Abstract

Polyvinyl chloride (PVC) microplastics are rapidly increasing contaminants effecting aquatic environments. Therefore, there is an urgent need to develop new strategies for routine analysis of microplastics. In this study, a mixed silver nanoparticles (AgNPs), graphene oxide (GO) and multi wall carbon nanotube (MWCNT) suspension was synthesized for the detection of PVC microplastics. To support the microstructure of nanoparticles, scanning electron microscope-energy dispersive X-ray spectroscopy (SEM-EDX) was used. PVC microplastics were determined in real sea and soft water bodies according to their electrochemical responses using AgNP/GO/MWCNT modified gold (Au) electrode at –0.30 V vs. Ag/AgCl with a wide linear range of (1.00 – 5.00) mg mL^-1 and LOD of 0.79 mg mL^-1. At the same time, other contaminants apart from PVC were tested using inductively coupled plasma-mass spectrometry (ICP-MS) studies and heavy metal content of all water bodies was examined. Thus, long-term source of PVC was detected in sea water bodies with this promising new approach.

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来源期刊

Journal of Molecular Structure 化学-物理化学

CiteScore

7.10

自引率

15.80%

发文量

2384

审稿时长

45 days

期刊介绍： The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including: • Stable and unstable molecules in all types of environments (vapour, molecular beam, liquid, solution, liquid crystal, solid state, matrix-isolated, surface-absorbed etc.) • Chemical intermediates • Molecules in excited states • Biological molecules • Polymers. The methods used may include any combination of spectroscopic and non-spectroscopic techniques, for example: • Infrared spectroscopy (mid, far, near) • Raman spectroscopy and non-linear Raman methods (CARS, etc.) • Electronic absorption spectroscopy • Optical rotatory dispersion and circular dichroism • Fluorescence and phosphorescence techniques • Electron spectroscopies (PES, XPS), EXAFS, etc. • Microwave spectroscopy • Electron diffraction • NMR and ESR spectroscopies • Mössbauer spectroscopy • X-ray crystallography • Charge Density Analyses • Computational Studies (supplementing experimental methods) We encourage publications combining theoretical and experimental approaches. The structural insights gained by the studies should be correlated with the properties, activity and/ or reactivity of the molecule under investigation and the relevance of this molecule and its implications should be discussed.