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Nanomaterials
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Control of New Pollutants by Functional Nanomaterials and Their Ecological...
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Control of New Pollutants by Functional Nanomaterials and Their Ecological Risk Assessment

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

Deadline for manuscript submissions: 20 January 2025 | Viewed by 2288

Special Issue Editor

Dr. Cheng Peng

E-Mail Website
Guest Editor
School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
Interests: environmental application and implication of nanomaterials; soil pollution control and remediation; ecological risk assessment and control of new pollutants
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the rapid development of nanotechnology, functional nanomaterials offer numerous unique properties and functionalities that enable them to effectively remove and mitigate various types of pollutants. These materials can be tailored to target specific new pollutants, such as persistent organic pollutants (especially perfluorinated compounds), endocrine disrupters, antibiotics, and even microplastics. Their small size and high reactivity also make them suitable for real-time monitoring and the analysis of pollutants in the environment.

However, the ecological risk assessment of nanomaterials is of utmost importance. Despite their potential benefits, these materials may also introduce unintended ecological risks due to their unique physicochemical properties. Potential risks include the toxic effects of nanomaterials on aquatic organisms and terrestrial organisms, bioaccumulation in food webs, and the potential transport of nanomaterials through different environmental compartments.

This Special Issue seeks submissions that address the control of new pollutants released by functional nanomaterials and the ecological risk assessment of the latter. In this Special Issue, original research articles and reviews are welcome.

Dr. Cheng Peng
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 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

  • nanomaterials
  • new pollutants
  • adsorption
  • degradation
  • removal
  • ecological risk
  • biotoxicity

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Published Papers (2 papers)

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Research

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18 pages, 11330 KiB  
Article
Combined Toxicity of Multi-Walled Carbon Nanotubes and Cu2+ on the Growth of Ryegrass: Effect of Surface Modification, Dose, and Exposure Time Pattern
by Wenwen Xie, Cheng Peng, Weiping Wang, Xiaoyi Chen, Jiaqi Tan and Wei Zhang
Nanomaterials 2024, 14(21), 1746; https://doi.org/10.3390/nano14211746 - 30 Oct 2024
Viewed by 431
Abstract
The escalating release of multi-walled carbon nanotubes (MWCNTs) into the environment has raised concerns due to their potential ecotoxicological impacts. However, their combined phytotoxicity with heavy metals such as copper (Cu) is still unclear. This study investigated the individual and combined toxic effects [...] Read more.
The escalating release of multi-walled carbon nanotubes (MWCNTs) into the environment has raised concerns due to their potential ecotoxicological impacts. However, their combined phytotoxicity with heavy metals such as copper (Cu) is still unclear. This study investigated the individual and combined toxic effects of MWCNTs (MWCNT, MWCNT-OH, and MWCNT-COOH) and Cu2+ on ryegrass (Lolium multiflorum), uniquely considering different addition orders. The results show that Cu severely inhibited the growth of ryegrass while MWCNTs exhibited a hormesis effect on ryegrass. When MWCNT and Cu were combined, the malondialdehyde (MDA) content in ryegrass showed a 32.39% increase at 20 mg/L MWCNT exposure, suggesting reduced oxidative stress. However, at the higher concentration of 1000 mg/L, it led to a significant 75.22% reduction in ryegrass biomass. MWCNT-COOH had the most pronounced effect, reducing the total chlorophyll content by 39.76% compared to unmodified MWCNT and by 10.67% compared to MWCNT-OH (500 mg/L). Additionally, pre-induced MWCNTs might alleviate the Cu in the plant by 23.08–35.38% through adsorption in the nutrient solution. Small molecule organic acids and amino acids primarily mediated the response to environmental stress in ryegrass. This research provides crucial insights into understanding the complex interactions of MWCNT and Cu2+ and their combined effects on plant ecosystems. Full article
(This article belongs to the Special Issue Control of New Pollutants by Functional Nanomaterials and Their Ecological Risk Assessment)
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Review

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18 pages, 1142 KiB  
Review
Research on the Migration and Adsorption Mechanism Applied to Microplastics in Porous Media: A Review
by Lin Zeng, Cong Yuan, Taoyu Xiang, Xiangwei Guan, Li Dai, Dingliang Xu, Danhui Yang, Long Li and Chengcheng Tian
Nanomaterials 2024, 14(12), 1060; https://doi.org/10.3390/nano14121060 - 20 Jun 2024
Cited by 1 | Viewed by 1351
Abstract
In recent years, microplastics (MPs) have emerged as a significant environmental pollutant, garnering substantial attention for their migration and transformation behaviors in natural environments. MPs frequently infiltrate natural porous media such as soil, sediment, and rock through various pathways, posing potential threats to [...] Read more.
In recent years, microplastics (MPs) have emerged as a significant environmental pollutant, garnering substantial attention for their migration and transformation behaviors in natural environments. MPs frequently infiltrate natural porous media such as soil, sediment, and rock through various pathways, posing potential threats to ecological systems and human health. Consequently, the migration and adsorption mechanisms applied to MPs in porous media have been extensively studied. This paper aims to elucidate the migration mechanisms of MPs in porous media and their influencing factors through a systematic review. The review encompasses the characteristics of MPs, the physical properties of porous media, and hydrodynamic factors. Additionally, the paper further clarifies the adsorption mechanisms of MPs in porous media to provide theoretical support for understanding their environmental behavior and fate. Furthermore, the current mainstream detection techniques for MPs are reviewed, with an analysis of the advantages, disadvantages, and applications of each technique. Finally, the paper identifies the limitations and shortcomings of current research and envisions future research directions. Full article
(This article belongs to the Special Issue Control of New Pollutants by Functional Nanomaterials and Their Ecological Risk Assessment)
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