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Nanomaterials
Special Issues
Nanostructured Materials for the Assay of Organic/Inorganic Water Pollutants
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Special Issue "Nanostructured Materials for the Assay of Organic/Inorganic Water Pollutants"

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Environmental Nanoscience and Nanotechnology".

Deadline for manuscript submissions: 15 December 2023 | Viewed by 1107

Special Issue Editors

Dr. Lidia Magerusan

E-Mail Website
Guest Editor
National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Street, No. 67-103, 400293 Cluj-Napoca, Romania
Interests: nanomaterials preparation and characterisation; electrochemistry; graphenes; carbon-based materials; polymers; electrochemical sensors
Special Issues, Collections and Topics in MDPI journals
Dr. Stela-Maria Pruneanu

E-Mail Website
Guest Editor
National Institute for Research and Development of Isotopic and Molecular Technologies, Donat Street, No. 67-103, RO-400293 Cluj-Napoca, Romania
Interests: graphene synthesis by electrochemical methods; graphene-modified electrodes; electrochemical detection of biomolecules (e.g., adenine; guanine; dopamine); pharmaceutical drugs and organic polutants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Environmental pollution is regarded as one of the most pressing issues threatening the ecology, biodiversity and human health. Water contamination has been a challenging problem to handle as a result of constant industrialization. Inorganic and organic pollutants are long-lasting hazardous contaminants that endanger biotic communities, including humans. As the human population grows and living standards improve, so does the need for fresh water. Therefore, water contamination is a major worldwide issue which requires continuous assessment and amendment of water resource policy at all levels. Thorough and strict water quality monitoring is essential part tailored to avoid the detrimental ecological impacts and custom-made composites or hybrid nanomaterials with target-specific characteristics are trustworthy and stable choices for environmental mitigation. In this given context, the aim of this Special Issue is to broaden the knowledge on water pollution, giving an insight on the sensitive detection and quantification tools for trace levels of water matrix contaminants, as well as on nanomaterials specifically designed for organic/inorganic pollutants assay. We invite authors to submit both original research, and review articles based on nanostructured materials applicability for the analysis of water samples; classic procedures recognized as safety control techniques; development and validation of new protocols and alternative methods that consist either of the involvement of innovative experimental setups or advanced data processing tools.

Dr. Lidia Magerusan
Dr. Stela-Maria Pruneanu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • nanostructured materials
  • water pollution
  • water analysis
  • electrochemical detection
  • carbon-base materials
  • organic pollutants
  • inorganic pollutants

Published Papers (1 paper)

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Research

19 pages, 7872 KiB  
Article
Highly Sensitive Graphene-Based Electrochemical Sensor for Nitrite Assay in Waters
by
Florina Pogăcean
,
Codruţa Varodi
,
Lidia Măgeruşan
and
Stela Pruneanu
Nanomaterials 2023, 13(9), 1468; https://doi.org/10.3390/nano13091468 - 25 Apr 2023
Cited by 1 | Viewed by 855
Abstract
The importance of nitrite ions has long been recognized due to their extensive use in environmental chemistry and public health. The growing use of nitrogen fertilizers and additives containing nitrite in processed food items has increased exposure and, as a result, generated concerns [...] Read more.
The importance of nitrite ions has long been recognized due to their extensive use in environmental chemistry and public health. The growing use of nitrogen fertilizers and additives containing nitrite in processed food items has increased exposure and, as a result, generated concerns about potential harmful health consequences. This work presents the development of an electrochemical sensor based on graphene/glassy carbon electrode (EGr/GC) with applicability in trace level detection of nitrite in water samples. According to the structural characterization of the exfoliated material, it appears as a mixture of graphene oxide (GO; 21.53%), few-layers graphene (FLG; 73.25%) and multi-layers graphene (MLG; 5.22%) and exhibits remarkable enhanced sensing response towards nitrite compared to the bare electrode (three orders of magnitude higher). The EGr/GC sensor demonstrated a linear range between 3 × 10−7 and 10−3 M for square wave voltammetry (SWV) and between 3 × 10−7 and 4 × 10−4 M for amperometry (AMP), with a low limit of detection LOD (9.9 × 10−8 M). Excellent operational stability, repeatability and interference-capability were displayed by the modified electrode. Furthermore, the practical applicability of the sensor was tested in commercially available waters with excellent results. Full article
(This article belongs to the Special Issue Nanostructured Materials for the Assay of Organic/Inorganic Water Pollutants)
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