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Molecules
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Polymer-Based Hybrid Nanomaterials for Water and Air Remediation
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Polymer-Based Hybrid Nanomaterials for Water and Air Remediation

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (19 March 2024) | Viewed by 4340

Special Issue Editor

Dr. Chiara Zagni

E-Mail Website
Guest Editor
Department of Drug Science, University of Catania, Catania, Italy
Interests: pharmaceutical chemistry; drug design; medicinal chemistry; cryogel synthesis; water purification

Special Issue Information

Dear Colleagues,

Improving water quality and reducing CO2 emissions are two crucial challenges of this millennium. The discharge of wastewater and industrial waste into rivers, which then transport the pollutants out to sea, has become a serious environmental problem for public health and the high amount of carbon dioxide released in the atmosphere. Polymer-based materials, such as hybrid nanomaterials (e.g., hydrogel, aerogel, and cryogel), are innovative smart structures that can be functionalized appropriately to remove organic and inorganic contaminants from water and air by adsorption the pollutant. This is the most widely used technology since it is a simple, low-cost, and easy handling procedure. This Special Issue aims to contribute to advances in the synthesis, characterization, and applications of polymer-based hybrid nanomaterials for liquid and gas phase purification of contaminated water and air. Potential topics include, but are not limited to: · Synthesis of polymer-based materials for water purification · Synthesis of polymer-based materials for CO2 capture · Functionalization of polymers · CO2 conversion to polymers · Formulation of hybrid nanomaterials · Characterization of new nanostructured materials · Degradation of emerging pollutants

Dr. Chiara Zagni
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. Molecules 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 2700 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

  • CO2
  • carbon dioxide
  • nanomaterials
  • polymer, water
  • hydrogel
  • cryogel
  • synthesis
  • emerging pollutants

Published Papers (2 papers)

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Research

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16 pages, 5607 KiB  
Article
Fabrication of Effective Nanohybrids Based on Organic Species, Polyvinyl Alcohol and Carbon Nanotubes in Addition to Nanolayers for Removing Heavy Metals from Water under Severe Conditions
by Hasna Abdullah Alali, Osama Saber, Aya Osama and Mohamed Farouk Ezzeldin
Molecules 2022, 27(16), 5054; https://doi.org/10.3390/molecules27165054 - 9 Aug 2022
Cited by 1 | Viewed by 1372
Abstract
Industrial water has a dual problem because of its strong acidic characteristics and the presence of heavy metals. Removing heavy metals from water in these severe conditions has special requirements. For this problem, an economic method was used for removing iron (Fe), copper [...] Read more.
Industrial water has a dual problem because of its strong acidic characteristics and the presence of heavy metals. Removing heavy metals from water in these severe conditions has special requirements. For this problem, an economic method was used for removing iron (Fe), copper (Cu), chromium (Cr), nickel (Ni) and manganese (Mn) with extremely acidic characteristics from water. This method depends on the preparation of nanohybrids through host–guest interactions based on nanolayered structures, organic species (stearic acid), polyvinyl alcohol (PVA) and carbon nanotubes (CNTs). The formation of nanohybrids was confirmed using different techniques through the expansion of the interlayered spacing of the nanolayered structure from 0.76 nm to 1.60 nm, 1.40 nm and 1.06 nm. This nano-spacing is suitable for trapping and confining the different kinds of heavy metal. The experimental results indicated that the prepared nanohybrid was more effective than GreensandPlus, which is used on the market for purifying water. The high activity of the nanohybrid is obvious in the removal of both copper and nickel because the GreensandPlus was completely inactive for these heavy metals under severe conditions. Finally, these experimental results introduce new promising materials for purifying industrial water that can work under severe conditions. Full article
(This article belongs to the Special Issue Polymer-Based Hybrid Nanomaterials for Water and Air Remediation)
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Review

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25 pages, 3913 KiB  
Review
Electrospun Nanofiber Membrane: An Efficient and Environmentally Friendly Material for the Removal of Metals and Dyes
by Li Li, Wei Guo, Shenggui Zhang, Ruibin Guo and Li Zhang
Molecules 2023, 28(8), 3288; https://doi.org/10.3390/molecules28083288 - 7 Apr 2023
Cited by 5 | Viewed by 2558
Abstract
With the rapid development of nanotechnology, electrospun nanofiber membranes (ENM) application and preparation methods have attracted attention. With many advantages such as high specific surface area, obvious interconnected structure, and high porosity, ENM has been widely used in many fields, especially in water [...] Read more.
With the rapid development of nanotechnology, electrospun nanofiber membranes (ENM) application and preparation methods have attracted attention. With many advantages such as high specific surface area, obvious interconnected structure, and high porosity, ENM has been widely used in many fields, especially in water treatment, with more advantages. ENM solves the shortcomings of traditional means, such as low efficiency, high energy consumption, and difficulty in recycling, and it is suitable for recycling and treatment of industrial wastewater. This review begins with a description of electrospinning technology, describing the structure, preparation methods, and factors of common ENMs. At the same time, the removal of heavy metal ions and dyes by ENMs is introduced. The mechanism of ENM adsorption on heavy metal ions and dyes is chelation or electrostatic attraction, which has excellent adsorption and filtration ability for heavy metal ions and dyes, and the adsorption capacity of ENMs for heavy metal ions and dyes can be improved by increasing the metal chelation sites. Therefore, this technology and mechanism can be exploited to develop new, better, and more effective separation methods for the removal of harmful pollutants to cope with the gradually increasing water scarcity and pollution. Finally, it is hoped that this review will provide some guidance and direction for research on wastewater treatment and industrial production. Full article
(This article belongs to the Special Issue Polymer-Based Hybrid Nanomaterials for Water and Air Remediation)
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