Eco-Friendly Nanomaterials: Innovations in Sustainable Applications

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

Deadline for manuscript submissions: 17 October 2025 | Viewed by 513

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Department of Chemical Engineering, Faculty of Chemistry, Universidad de Sevilla, 41012 Seville, Spain
Interests: bioplastic nanotechnology; bioplastics; sustainable plastics; polymer processing; eco-friendly materials; renewable resources; recycling technologies
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Special Issue Information

Dear Colleagues,

This Special Issue aims to explore the unique interplay between the intrinsic properties of green nanomaterials and their potential to address global challenges across diverse applications. By investigating the synergistic effects of nanoscale material properties—such as size, surface area, morphology, optical, magnetic, and crystalline versus amorphous structures—this Special Issue will provide insights into how these characteristics contribute to multifunctionality. A particular focus will be placed on nanomaterials derived from natural, agro-waste, eco-friendly, and sustainable raw materials. Emphasis will also be placed on incorporating green sources, including polyphenols and other bio-based precursors, in synthesizing nanomaterials with applications in antibacterial, anticancer, anti-inflammatory, photocatalytic, and environmental remediation processes. Additionally, the issue will explore their roles in green energy production, heavy metal remediation, and water purification, with attention to environmental sustainability and resource efficiency. Contributions addressing innovative synthesis methods, advanced characterization techniques, and the integration of these nanomaterials in practical in situ and in vivo applications are strongly encouraged. This Special Issue highlights cutting-edge research in leveraging green nanomaterials as sustainable solutions for environmental, energy, and biomedical challenges.

Dr. Johar Amin Ahmed Abdullah
Prof. Dr. Alberto Romero García
Guest Editors

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Keywords

  • eco-friendly nanomaterials
  • sustainable synthesis
  • green precursors
  • environmental remediation
  • photocatalysis
  • biomedical applications
  • heavy metal removal
  • green energy production

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Published Papers (1 paper)

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Research

18 pages, 1861 KiB  
Article
Clay Nanomaterials Sorbents for Cleaner Water: A Sustainable Application for the Mining Industry
by María Molina-Fernández, Albert Santos Silva, Rodrigo Prado Feitosa, Edson C. Silva-Filho, Josy A. Osajima, Santiago Medina-Carrasco and María del Mar Orta Cuevas
Nanomaterials 2025, 15(15), 1211; https://doi.org/10.3390/nano15151211 - 7 Aug 2025
Viewed by 339
Abstract
The increasing shortage of drinking water, driven by reduced rainfall and the intensification of industrial and agricultural activities, has raised justified concerns about the quantity and quality of available water resources. These sectors not only demand high water consumption but also discharge large [...] Read more.
The increasing shortage of drinking water, driven by reduced rainfall and the intensification of industrial and agricultural activities, has raised justified concerns about the quantity and quality of available water resources. These sectors not only demand high water consumption but also discharge large amounts of toxic substances such as organic matter, metal ions and inorganic anions, posing risks to both public health and the environment. This study evaluated the effectiveness of clay-based nanomaterials in the treatment of contaminated industrial wastewater from the mining sector. The materials tested included montmorillonite, high-loading expandable synthetic mica, and their organically functionalized forms (MMT, Mica-Na-4, C18-MMT, and C18-Mica-4). The experimental results show that these clays had minimal impact on the pH of the water, while a notable decrease in the chemical oxygen demand (COD) was observed. Ion chromatography indicated an increase in nitrogen and sulfur compounds with higher oxidation states. Inductively coupled plasma analysis revealed a significant reduction in the calcium concentration and an increase in the sodium concentration, likely due to cation exchange mechanisms. However, the removal of copper and iron was ineffective, possibly due to competitive interactions with other cations in the solution. Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD) confirmed the structural modifications and interlayer spacing changes in the clay materials upon exposure to contaminated water. These findings demonstrate the potential of clay minerals as effective and low-cost materials for the remediation of industrial wastewater. Full article
(This article belongs to the Special Issue Eco-Friendly Nanomaterials: Innovations in Sustainable Applications)
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