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Nanomaterials
Special Issues
Nanomaterials in Environment: Fate, Reactivity, and Transformations
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Nanomaterials in Environment: Fate, Reactivity, and Transformations

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

Deadline for manuscript submissions: closed (31 August 2023) | Viewed by 1649

Special Issue Editors

Dr. Lingxiangyu Li

E-Mail Website
Guest Editor
School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
Interests: fate and health risk of nanomaterials
Dr. Fei Dang

E-Mail Website
Guest Editor
Institute of Soil Science, Chinese Academy of Sciences, Nanjing 210008, China
Interests: fate, transformation and risk of nanomaterials in soil; nano(micro)plastics

Special Issue Information

Dear Colleagues,

Along with the rapid development of nanotechnology, the number of nanomaterials available on the market has increased greatly, resulting in the inevitable release of nanomaterials during production, usage and disposal of commercial products with nanomaterials. The nanomaterials in the environment undergo transportation and transformation as a function of time, wherein the fate of the nanomaterials is highly dependent on their properties and the matrices in the environment. The reactivity of nanomaterials would thus change greatly along with their transportation and transformation, wherein the environmental risk of nanomaterials should attract attention to comprehensively understand possible risk of nanotechnology. Obviously, it is important to investigate the fate, reactivity and transformation of nanomaterials in the environment, showing potential positive and negative effects of nanomaterials comprehensively. We are pleased to invite you to contribute interesting findings in your field to this Special Issue of Nanomaterials in Environment: Fate, Reactivity, and Transformations. 

This Special Issue aims to cover recent progress in fate, reactivity and transformation of nanomaterials in the environment. In this Special Issue, original research articles, short communications and reviews are welcome. Potential research areas may include (but are not limited to) the following:

  • Fate of nanomaterials in the environment;
  • Aggregation, dissolution and sedimentation of nanomaterials in the environment;
  • Transport of nanomaterials in water or soil;
  • Positive or negative effects of nanomaterials used in agriculture;
  • Transformation of nanomaterials in the environment;
  • Analysis of nanomaterials in the environment;
  • Risk assessment of nanomaterials in the environment;
  • Bioavailability, uptake and accumulation of nanomaterials in plants and aquatic organisms;
  • Toxicity of nanomaterials towards model organisms in the environment;
  • Stability of functional nanomaterials (e.g., iron-based nanomaterials) used for environmental remediation.

Dr. Lingxiangyu Li
Dr. Fei Dang
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

  • stability
  • fate
  • reactivity
  • transformation
  • behavior
  • toxicity
  • risk assessment
  • nanopesticides
  • soil
  • plants
  • sediments
  • environmental water

Published Papers (1 paper)

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Research

8 pages, 1268 KiB  
Article
Aggregation, Sedimentation and Dissolution of Cu(OH)2-Nanorods-Based Nanopesticide in Soil Solutions
by Zhenlan Xu, Qing Tang, Aimei Hong and Lingxiangyu Li
Nanomaterials 2022, 12(21), 3844; https://doi.org/10.3390/nano12213844 - 31 Oct 2022
Cited by 2 | Viewed by 1322
Abstract
Along with the development of nanotechnology, nanomaterials have been gradually applied to agriculture in recent years, such as Cu(OH)2-nanorods-based nanopesticide, an antibacterial agrochemical with a high efficacy. Nevertheless, knowledge about physical stability of Cu(OH)2 nanopesticide in soil solutions is currently [...] Read more.
Along with the development of nanotechnology, nanomaterials have been gradually applied to agriculture in recent years, such as Cu(OH)2-nanorods-based nanopesticide, an antibacterial agrochemical with a high efficacy. Nevertheless, knowledge about physical stability of Cu(OH)2 nanopesticide in soil solutions is currently scarce, restricting comprehensive understanding of the fate and risk of Cu(OH)2 nanopesticide in the soil environment. Herein we investigated aggregation, sedimentation and dissolution of Cu(OH)2 nanopesticide in soil solutions extracted from three different soil samples, wherein commercial Cu(OH)2 nanopesticide formulation (NPF), as well as its active ingredient (AI) and laboratory-prepared Cu(OH)2 nanorods (NR) with similar morphology as AI, were used as model Cu(OH)2 nanopesticides. We found that NPF compared to AI showed less extents of aggregation in ultrapure water due to the presence of dispersing agent in NPF. Yet, moderated aggregation and sedimentation were observed for Cu(OH)2 nanopesticide irrespective of NPF, AI or NR when soil solutions were used instead of ultrapure water. The sedimentation rate constants of AI and NPF were 0.023 min−1 and 0.010 min−1 in the ultrapure water, whereas the rate constants of 0.003–0.021 min−1 and 0.002–0.007 min−1 were observed for AI and NPF in soil solutions, respectively. Besides aggregation and sedimentation, dissolution of Cu(OH)2 nanopesticide in soil solutions was highly dependent on soil type, wherein pH and organic matter played important roles in dissolution. Although the final concentrations of dissolved copper (1.08–1.37 mg/L) were comparable among different soil solutions incubating 48 mg/L of AI, NPF or NR for 96 h, a gradual increase followed by an equilibrium was only observed in the soil solution from acidic soil (pH 5.16) with the low content of organic matter (1.20 g/kg). This work would shed light on the fate of Cu(OH)2 nanopesticide in the soil environment, which is necessary for risk assessment of the nanomaterials-based agrochemical. Full article
(This article belongs to the Special Issue Nanomaterials in Environment: Fate, Reactivity, and Transformations)
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