期刊
MATERIALS
卷 14, 期 24, 页码 -出版社
MDPI
DOI: 10.3390/ma14247725
关键词
magnetite nanoparticles; Fe3O4; electrode modification; electrochemical sensor; heavy metal ions detection
类别
资金
- University of Gdansk within the project supporting young scientists and PhD students [BMN 539-T050-B890-21]
Nanoparticles of iron oxide Fe3O4 (magnetite) have unique properties that make them successfully utilized in environmental remediation, biomedical, and agricultural applications. This review focuses on the usage of Fe3O4 nanoparticles-modified electrodes for heavy metal ions electrochemical detection.
Over the past few decades, nanoparticles of iron oxide Fe3O4 (magnetite) gained significant attention in both basic studies and many practical applications. Their unique properties such as superparamagnetism, low toxicity, synthesis simplicity, high surface area to volume ratio, simple separation methodology by an external magnetic field, and renewability are the reasons for their successful utilisation in environmental remediation, biomedical, and agricultural applications. Moreover, the magnetite surface modification enables the successful binding of various analytes. In this work, we discuss the usage of core-shell nanoparticles and nanocomposites based on Fe3O4 for the modification of the GC electrode surface. Furthermore, this review focuses on the heavy metal ions electrochemical detection using Fe3O4-based nanoparticles-modified electrodes. Moreover, the most frequently used electrochemical methods, such as differential pulse anodic stripping voltammetry and measurement conditions, including deposition potential, deposition time, and electrolyte selection, are discussed.
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