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Nanomaterials
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Environmental Restoration Materials and Technologies
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Environmental Restoration Materials and Technologies

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

Deadline for manuscript submissions: 30 May 2025 | Viewed by 2792

Special Issue Editors

Prof. Dr. Jie Ma

E-Mail Website
Guest Editor
College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China
Interests: capacitive deionization; electrosorption; saline wastewater; carbon nanotubes; electrode materials
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Chongchen Wang

E-Mail Website
Guest Editor
Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation, Beijing University of Civil Engineering and Architecture, Beijing, China
Interests: water cultural heritage; cultural heritage; heritage; architectural heritage

Special Issue Information

Dear Colleagues,

We would like to invite all scientists, researchers and scholars in the field of environmentally functional nanomaterials, especially the participants of the China Materials Conference 2024 (https://www.mdpi.com/journal/nanomaterials/special_issues/XMW602XKMZ), to submit their original research papers and reviews to this Special Issue of Nanomaterials, entitled “Environmental Restoration Materials and Technologies”.

The exploration of environmental remediation technologies based on environmental functional nanomaterials is considered an effective strategy to alleviate environmental problems and the shortage of freshwater resources. The unique and tunable properties of nanomaterials endow them with diverse functions to deal with environmental and resource challenges, providing future opportunities for nanomaterials in the environment and ecosystem. Additionally, through theoretical research and practical applications, a scientific basis for critical material techniques could be provided for the evolution of related industries.

Therefore, we are pleased to invite you to submit manuscripts on the preparation, characterization and application, such as adsorption, capacitive deionization, membrane filtration, catalytic degradation, and advanced oxidation, of environmentally functional nanomaterials.

This Special Issue aims to publish original research in the fields of new synthetic methods for known environmentally functional materials, discovery or modification of new environmentally functional materials, new pollution control or desalination mechanisms, and practical and conceptual enhancements of known technologies.

Prof. Dr. Jie Ma
Prof. Dr. Chongchen Wang
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

  • environmental functional materials
  • adsorption
  • capacitive deionization
  • membrane filtration
  • catalytic degradation
  • advanced oxidation

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Further information on MDPI's Special Issue polices can be found here.

Published Papers (3 papers)

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Research

12 pages, 2211 KiB  
Article
Preliminary Study on the Preparation of Conductive Nanosized Calcium Carbonate Utilizing Biogas Slurry by a Synchronous Double Decomposition Coating Method
by Fanghui Pan, Han Xiao, Fei Huang, Hongguang Zhu, Jingjing Lei and Jie Ma
Nanomaterials 2023, 13(13), 1938; https://doi.org/10.3390/nano13131938 - 26 Jun 2023
Cited by 2 | Viewed by 1475
Abstract
Nanosized calcium carbonate (NCC) plays a vital role in the rubber and plastic fields as a filler, but it cannot resolve the electrostatic problem. Humic-acid-based NCC (HA-NCC) was accidentally discovered in the reaction between biogas slurry and calcium chloride (CaCl2), based [...] Read more.
Nanosized calcium carbonate (NCC) plays a vital role in the rubber and plastic fields as a filler, but it cannot resolve the electrostatic problem. Humic-acid-based NCC (HA-NCC) was accidentally discovered in the reaction between biogas slurry and calcium chloride (CaCl2), based on nutrient recovery and gradient treatment technology to solve the biogas slurry problem. A preliminary study on the preparation of conductive nanosized calcium carbonate (CNCC) from the HA-NCC was implemented. Meanwhile, a synchronous double decomposition coating method was proposed to properly explain the formation of HA-NCC in the biogas slurry. The CNCC was further obtained through drying and carbonizing the HA-NCC sample. The morphology of CNCC was a square shape with aggregation, and its crystals were calcite. The C content of CNCC was 5% higher than that of the normal CaCO3, implying a synchronous coating effect of soluble HA in biogas slurry on NCC. The weight loss of CNCC was about 2.5% at 630 °C, explaining why the HA-NCC remained black at 550 °C for 4 h. The CNCC was partly ordered and graphitized. The resistivity of the CNCC reached 2.62 × 106 Ω·cm. It could be used as a conductive powder. In view of the favorable characteristics described above, CNCC would be expected to be a filler and antistatic agent for plastics and rubbers to enhance the tensile and bending resistance of polymer materials, while eliminating electrostatic hazards. The results are also of great significance for developing high-end products to realize resource utilization of biogas slurry. Full article
(This article belongs to the Special Issue Environmental Restoration Materials and Technologies)
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17 pages, 5849 KiB  
Article
Silk Nanofibril-Palygorskite Composite Membranes for Efficient Removal of Anionic Dyes
by Xu-rui Wang, Zhe-yi Meng, Xue-fen Wang, Wei-long Cai, Ke Liu and Dong Wang
Nanomaterials 2023, 13(2), 247; https://doi.org/10.3390/nano13020247 - 6 Jan 2023
Cited by 2 | Viewed by 1568
Abstract
To develop membrane materials with good performance for water purification that are green and low cost, this work reports an organic–inorganic composite membrane composed of silk nanofibrils (SNFs) and palygorskite (PGS). To improve the stability of the the composite membrane, genipin was used [...] Read more.
To develop membrane materials with good performance for water purification that are green and low cost, this work reports an organic–inorganic composite membrane composed of silk nanofibrils (SNFs) and palygorskite (PGS). To improve the stability of the the composite membrane, genipin was used as a crosslinking agent to induce the conformational transition of SNF chains from random coils to β-sheets, reducing the swelling and hydrolysis of the membrane. The separation performance can be adjusted by tailoring the component ratio of the nanomaterial. The results showed that these membranes can effectively remove anionic dyes from water, and they exhibit excellent water permeability. The SNF-based membrane had strong mechanical and separation properties, and the PGS could tune the structure of composite membranes to enhance their permeability, so this green composite membrane has good prospects in water treatment and purification applications. Full article
(This article belongs to the Special Issue Environmental Restoration Materials and Technologies)
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16 pages, 5098 KiB  
Article
Efficient Removal of Ciprofloxacin from Contaminated Water via Polystyrene Anion Exchange Resin with Nanoconfined Zero-Valent Iron
by Yaqin Song, Ying Zeng, Ting Jiang, Jianqiu Chen and Qiong Du
Nanomaterials 2023, 13(1), 116; https://doi.org/10.3390/nano13010116 - 26 Dec 2022
Cited by 5 | Viewed by 2044
Abstract
Ciprofloxacin (CIP), an important emerging contaminant, has been frequently detected in water, and its efficient removal has become an issue of great concern. In this study, a nanocomposite material nZVI/PA was synthesized by impregnating nanoscale zero-valent iron (nZVI) inside a millimeter-sized porous host [...] Read more.
Ciprofloxacin (CIP), an important emerging contaminant, has been frequently detected in water, and its efficient removal has become an issue of great concern. In this study, a nanocomposite material nZVI/PA was synthesized by impregnating nanoscale zero-valent iron (nZVI) inside a millimeter-sized porous host (polystyrene-based anion exchange resin (PA)) for CIP removal. The nZVI/PA composite was characterized by field emission scanning electron microscopy coupled with energy-dispersive X-ray, transmission electron microscopy, X-ray diffraction, as well as X-ray photoelectron spectroscopy, and it was confirmed that nZVI was uniformly dispersed in PA with a small particle size. Furthermore, several key factors were investigated including initial solution pH, initial CIP concentration, co-existing ions, organic ligands, and dissolved oxygen. The experimental results indicated that the nZVI/PA composites exhibited a high removal efficiency for CIP under the conditions of initial pH 5.0, and initial CIP concentration 50 mg L−1 at 25 °C, with the maximum removal rate of CIP reaching 98.5%. Moreover, the nZVI/PA composites exhibited high efficiency even after five cycles. Furthermore, quenching tests and electron spin resonance (ESR) confirmed that CIP degradation was attributed to hydroxyl (·OH) and superoxide radicals (⋅O2−). Finally, the main degradation products of CIP were analyzed, and degradation pathways including the hydroxylation of the quinolone ring, the cleavage of the piperazine ring, and defluorination were proposed. These results are valuable for evaluating the practical application of nZVI/PA composites for the removal of CIP and other fluoroquinolone antibiotics. Full article
(This article belongs to the Special Issue Environmental Restoration Materials and Technologies)
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