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Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater
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Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Wastewater Treatment and Reuse".

Deadline for manuscript submissions: closed (30 June 2022) | Viewed by 7810

Special Issue Editors

Dr. Wenjing Ma

E-Mail Website
Guest Editor
Joint Laboratory of Advanced Biomedical Materials (NFU-UGent), Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing, China
Interests: nanofiber membranes; hydrogels; nanofiber aerogels
Special Issues, Collections and Topics in MDPI journals
Dr. Xian Jiang

E-Mail Website
Guest Editor
School of New Energy, Nanjing University of Science and Technology, Nanjing, China
Interests: fuel cells; zinc–air battery; electrocatalysts

Special Issue Information

Dear Colleagues,

Due to rapid population growth, water resource depletion, and climate change, drinking water has become one of the biggest competitive resources in many parts of the world. The careful treatment of water and wastewater is a great challenge in recent research. Many techniques are currently applied to water and wastewater treatment. However, traditional materials and treatment technologies, such as activated carbon, oxidation, and activated sludge, cannot effectively deal with environmental pollutants.  Therefore, much effort has been devoted to seek safe, efficient, sustainable, effective, and low-cost scientific treatment techniques.

Engineered nanomaterials (including nanomembranes, nanotubes, and nanoparticles, etc.) can be used for the advanced treatment of wastewater. These nanomaterials have been established in the development of adsorbent materials, catalysts, and separation membranes to enhance the removal of specific components of wastewater and improve productivity. At present, the most extensively studied nanomaterials for water and wastewater treatment mainly include carbon nanotubes, metal oxide nanoparticles, zero-valent metal nanoparticles, and nanocomposites. All of the above can be achieved by using nanotechnology.

This Special Issue, entitled “Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater”, covers the design, preparation, and characterization of novel nanomaterials, as well as their applications in water and wastewater. This Special Issue welcomes contributions on (but not limited to):

  • The advanced application of nanomaterials in wastewater treatment;
  • Nanomaterials applied for removing dyes from wastewater;
  • The removal of pharmaceutical contaminants in wastewater using nanomaterials;
  • Nanomaterials for the removal of heavy metals from water and wastewater;
  • Nanomaterials as adsorbents for other pollutants;
  • Nanomaterial membranes for wastewater filtration;
  • The application of nanomaterials in the remediation of aqueous environments (water, wastewater, and groundwater) via chemical reactions, photocatalytic methods, and filtration;
  • Antimicrobial nanomaterials;
  • The removal of bacterial pathogens from wastewater using nanomaterials.

Dr. Wenjing Ma
Dr. Xian Jiang
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. Water 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 2600 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
  • wastewater
  • application
  • water
  • treatment

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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

14 pages, 2212 KiB  
Article
Dual-Functional Nanostructures for Purification of Water in Severe Conditions from Heavy Metals and E. coli Bacteria
by Abdulaziz Abdulrahman AMulla, Osama Saber, Mohamed Farouk Ezzeldin, Mahmoud Mohamed Berekaa and Waleed I. M. El-Azab
Water 2022, 14(19), 3010; https://doi.org/10.3390/w14193010 - 24 Sep 2022
Cited by 1 | Viewed by 1797
Abstract
Because of industrial water, many groundwater sources and other water bodies have a strongly acidic medium. Increased bacterial resistance against multiple antibiotics is one of the main challenges for the scientific society, especially those commonly found in wastewater. Special requirements and materials are [...] Read more.
Because of industrial water, many groundwater sources and other water bodies have a strongly acidic medium. Increased bacterial resistance against multiple antibiotics is one of the main challenges for the scientific society, especially those commonly found in wastewater. Special requirements and materials are needed to work with these severe conditions and treat this kind of water. In this trend, nanolayered structures were prepared and modified in different ways to obtain an optimum material for removing different kinds of heavy metals from water in severe conditions, alongside purifying water from a Gram-negative bacteria (E. coli), which is an indication for fecal pollution. An ultrasonic technique effectively achieved this dual target by producing nanolayered structures looking like nanotapes with dimensions of 25 nm. The maximum removal percentages of the heavy metals studied (i.e., iron (Fe), copper (Cu), chromium (Cr), nickel (Ni), and manganese (Mn)) were 85%, 79%, 68%, 63%, and 61%, respectively for one prepared structure. In addition, this nanostructure showed higher antimicrobial activity against the most common coliform bacterium, E. coli (inhibition zone up to 18.5 mm). This study introduces dual-functional material for removing different kinds of heavy metals from water in severe conditions and for treating wastewater for Gram-negative bacteria (E. coli). Full article
(This article belongs to the Special Issue Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater)
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14 pages, 8862 KiB  
Article
A Novel Magnetic Nano-Sorbent Functionalized from N-methyl-d-glucamine for Boron Removal from Desalinated Seawater
by Tingting Sun, Fulin Li, Qikun Zhang, Xiaolin Geng, Huawei Chen and Qi Zhao
Water 2022, 14(8), 1212; https://doi.org/10.3390/w14081212 - 9 Apr 2022
Cited by 5 | Viewed by 2389
Abstract
Boron is a special pollutant. Because of its relatively small molecular weight, it can freely penetrate the reverse osmosis membrane in the same way that water molecules can in reverse osmosis during seawater desalination, which affects the effluent quality of desalinated seawater. In [...] Read more.
Boron is a special pollutant. Because of its relatively small molecular weight, it can freely penetrate the reverse osmosis membrane in the same way that water molecules can in reverse osmosis during seawater desalination, which affects the effluent quality of desalinated seawater. In this study, a new magnetic adsorption material, MNP-NMDG, was synthesized by combining magnetic nanoparticles (MNPs) of Fe3O4 with N-methyl-d-glucamine with a high selectivity to boron, and MNP-NMDG was characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and X-ray diffraction (XRD). The adsorption properties of the MNP-NMDG for boron during seawater desalination under static and dynamic conditions was studied from the aspects of pH, adsorbent dosage, adsorption kinetics, and isotherms. The results showed that according to the breakthrough curve of dynamic adsorption, MNP-NMDG had a high boron-adsorption capacity, and the static adsorption capacity was 9.21 mg/g. The adsorption performance was the best at pH = 9, and the adsorption equilibrium was achieved within 40 min. Boron adsorption conformed to the Freundlich adsorption isotherm and to the pseudo-second-order kinetic model. This composite material not only provides an effective and rapid way to remove boron from desalinated seawater, but also has a shorter removal time and makes it more easily separated using the external magnetic field. Full article
(This article belongs to the Special Issue Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater)
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10 pages, 2951 KiB  
Article
Photothermal Catalytic Degradation of Lomefloxacin with Nano Au/TiO2
by Jia Duo, Wenfeng Li, Yingji Wang, Shuzhi Wang, Rehemanjiang Wufuer and Xiangliang Pan
Water 2022, 14(3), 339; https://doi.org/10.3390/w14030339 - 24 Jan 2022
Cited by 9 | Viewed by 3068
Abstract
With the fast development of intensive poultry and aquaculture, the consumption of antibiotics has ever been increasing. Absorbed or metabolized antibiotics usually enter the water environment in the form of active drugs and metabolites, which can enhance the resistance of pathogenic microorganisms and [...] Read more.
With the fast development of intensive poultry and aquaculture, the consumption of antibiotics has ever been increasing. Absorbed or metabolized antibiotics usually enter the water environment in the form of active drugs and metabolites, which can enhance the resistance of pathogenic microorganisms and even cause serious water pollution. Considering the bacteriostatic activity of antibiotics, the main biological method used to treat organic waste water has limited efficiency. Herein, we prepared Au/TiO2 for the efficient photocatalytic degradation of lomefloxacin (LOM) antibiotic wastewater. Based on the characteristics of prepared Au/TiO2, the short–wavelength light can be converted into photogenerated carriers with TiO2 support and the long–wavelength light can be converted into heat, likely due to the localized surface plasmon resonance effect of Au, synergistically promoting the LOM degradation. This study not only demonstrates that Au/TiO2 is an efficient photocatalyst for LOM degradation, but also further indicates the effectiveness of photocatalytic technology in the treatment of antibiotic wastewater. Full article
(This article belongs to the Special Issue Advanced Application of Nanomaterials and Nanotechnology in Water and Wastewater)
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