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Nanomaterials
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Nanomaterial Application in Environmental Monitoring and Water Treatment: 2nd Edition
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Nanomaterial Application in Environmental Monitoring and Water Treatment: 2nd Edition

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

Deadline for manuscript submissions: closed (15 May 2026) | Viewed by 1947

Special Issue Editor

Prof. Dr. Xing Chen

E-Mail Website
Guest Editor
Industry and Equipment Technology Institute, Hefei University of Technology, Hefei 230009, China
Interests: nanocomposites for water pollution control; electrochemical sensing interfaces; industrial wastewater treatment
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Improvements in living standards and the rapid development of industrialization have contributed increases amounts of pollutants, including large amounts of emerging pollutants, entering aqueous environments. There is an urgent demand for efficient materials and technologies to conduct environmental monitoring and water treatment.

Many scientists have devoted themselves to studying nanomaterials in order to discover environmental applications based on their unique properties, such as their high specific areas, adequate activated sites, and high energy conversion efficiency. Various types of sensing interfaces and devices (fluorescent, Raman, colorimetric, electrochemical, electrical, etc.) have been designed for monitoring pollutants, such as persistent organic pollutants, heavy metal ions, and pesticides, in aqueous environments. Additionally, nanomaterials demonstrate a huge potential for water treatment via adsorption and catalytic methods.

This Special Issue welcomes contributions devoted to the design, characterization, and application of novel nanomaterials for environmental monitoring and water treatment, especially and predominately those focused on nanomaterials with high efficiency, low cost, and potential practical applications.

Prof. Dr. Xing Chen
Guest Editor

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 250 words) can be sent to the Editorial Office for assessment.

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 2400 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
  • sensitive nanomaterials
  • pollutant monitoring
  • nanocatalysts
  • advanced oxidation process
  • water treatment
  • wastewater treatment

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Related Special Issue

Published Papers (2 papers)

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Research

23 pages, 5092 KB  
Article
Facile Synthesis of Multifunctional MNPs@Chitosan-Ag Nanocomposites: Investigating SERS Substrate Potential and Antibacterial Properties
by Yeliz Akpinar
Nanomaterials 2026, 16(10), 608; https://doi.org/10.3390/nano16100608 - 15 May 2026
Viewed by 288
Abstract
Nanocomposite materials combine diverse material properties to form multifunctional structures, enhancing the efficiency of conventional applications. Particularly in environmental monitoring, such as water analysis, nanocomposites significantly improve sensitivity and lower costs associated with standard analysis methods. The SERS method is gaining popularity due [...] Read more.
Nanocomposite materials combine diverse material properties to form multifunctional structures, enhancing the efficiency of conventional applications. Particularly in environmental monitoring, such as water analysis, nanocomposites significantly improve sensitivity and lower costs associated with standard analysis methods. The SERS method is gaining popularity due to its operational simplicity, on-site applicability, and rapid results delivery. This study focused on the development of a multifunctional metal-chitosan-based nanocomposite utilizing an economical, eco-friendly approach as an SERS substrate. The resulting composite exhibits considerable preconcentration capabilities and will provide low detection limits (LOD) for future SERS applications. Specifically, magnetic nanoparticles (MNPs) were electrostatically combined with chitosan-coated silver nanoparticles (Chi-Ag NPs) to synthesize the MNPs@Chi-Ag NPs nanocomposite. CoFe2O4 NPs were prepared as MNPs. The resulting nanocomposite, which demonstrated colloidal stability after optimization, was characterized using various techniques, including UV-VIS and FTIR spectroscopy, XRD, TEM, SEM, and DLS. As a SERS substrate, the MNP@Chi-Ag NPs exhibited considerable analytical enhancement factors of (1.5 ± 0.4) × 106, (7.0 ± 0.3) × 106, and (1.2 ± 0.5) × 106 for the detection of water contaminants BCB, CV, and MP, respectively. It was demonstrated that the substrate enhances precision and exhibits preconcentration. Finally, the MNPs@Chi-Ag NP nanocomposite demonstrates remarkable antibacterial activity, with larger inhibition zones observed at higher nanocomposite concentrations, indicating a concentration-dependent effect. Full article
(This article belongs to the Special Issue Nanomaterial Application in Environmental Monitoring and Water Treatment: 2nd Edition)
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14 pages, 4332 KB  
Article
Powerful Tribocatalytic Degradation of Methyl Orange Solutions with Concentrations as High as 100 mg/L by BaTiO3 Nanoparticles
by Mingzhang Zhu, Zeren Zhou, Yanhong Gu, Lina Bing, Yuqin Xie, Zhenjiang Shen and Wanping Chen
Nanomaterials 2025, 15(14), 1135; https://doi.org/10.3390/nano15141135 - 21 Jul 2025
Cited by 6 | Viewed by 1235
Abstract
In sharp contrast to photocatalysis and other prevalent catalytic technologies, tribocatalysis has emerged as a promising technology to degrade high-concentration organic dyes in recent years. In this study, BaTiO3 (BTO) nanoparticles were challenged to degrade methyl orange (MO) solutions with unprecedentedly high [...] Read more.
In sharp contrast to photocatalysis and other prevalent catalytic technologies, tribocatalysis has emerged as a promising technology to degrade high-concentration organic dyes in recent years. In this study, BaTiO3 (BTO) nanoparticles were challenged to degrade methyl orange (MO) solutions with unprecedentedly high concentrations through magnetic stirring. With BTO nanoparticles and home-made PTFE magnetic rotary disks in 50 mg/L MO solutions, 10 h of magnetic stirring resulted in 91.4% and 98.1% degradations in an as-received glass beaker and in a beaker with a PTFE disk coated on its bottom, respectively. Even for 100 mg/L MO solutions, nearly complete degradation was achieved by magnetic-stirring-stimulated BTO nanoparticles in beakers with the following four kinds of bottom: 97.3% degradation in 30 h for a glass bottom, 97.4% degradation in 20 h for a PTFE coating, 97.9% degradation in 42 h for a Ti coating, and 97.4% degradation in 74 h for an Al2O3 coating. Electron paramagnetic resonance (EPR) analyses revealed that the generation of reactive oxygen species (ROS) by magnetic-stirring-stimulated BTO nanoparticles is dramatically affected by the bottom material of beakers. These findings suggest an appealing prospect for BTO nanoparticles to utilize mechanical energy for sustainable water remediation. Full article
(This article belongs to the Special Issue Nanomaterial Application in Environmental Monitoring and Water Treatment: 2nd Edition)
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