Special Issue "Potential Applications of Nanomaterials-Based Adsorbents in the Removal of Pollutants in Wastewater"

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Agricultural Engineering".

Deadline for manuscript submissions: 10 May 2022.

Special Issue Editors

Prof. Dr. Nhamo Chaukura
E-Mail Website
Guest Editor
Department of Physical and Earth Sciences, Sol Plaatje University, Kimberley, South Africa
Interests: emerging pollutants; environmental remediation; nanomaterials; water treatment
Prof. Dr. Alex Kuvarega
E-Mail Website
Guest Editor
Institute for Nanotechnology and Water Sustainability, College of Science, Engineering and Technology, University of South Africa, Florida 1709, South Africa
Interests: advanced oxidation processes; heterogenous catalysis; material synthesis and characterisation; water and wastewater treatment technologies
Prof. Dr. Rangabhashiyam Selvasembian
E-Mail Website
Guest Editor
Department of Biotechnology, School of Chemical and Biotechnology, SASTRA University, Thanjavur 613401, Tamilnadu, India
Interests: biomass valorization for energy and environmental applications; bioremediation; biosorption; wastewater treatment; biocatalyst

Special Issue Information

Dear Colleagues,

The use of nanomaterials for water treatment exploits the desirable properties of nanomaterials, emanating from their small size. The design, synthesis, characterization, and evaluation of nanomaterials for the removal of pollutants in aquatic systems can span a number of disciplines, including chemistry, chemical engineering, artificial intelligence, data analytics, and environmental sciences, among others.

This Special Issue seeks to address recent advances in the following broad topics:

  1. Design, synthesis, and modification of nanomaterials;
  2. Bionanomaterials, synthesis and application in water pollutant removal;
  3. Characterization methods and properties of nanomaterials;
  4. Low-cost nanomaterials for water treatment;
  5. The application of nanocomposites in water treatment;
  6. Integrating adsorption and photocatalysis in water treatment;
  7. The removal of emerging pollutants in water using nanomaterials;
  8. Studying the removal mechanisms of emerging organic pollutants in water;
  9. Nanomaterials for the removal of antibiotics in water;
  10. Nanomaterials for the removal of rare earth metals in water;
  11. Nanomaterials for the removal of antibiotics in water;
  12. Sustainable application of nanomaterials in wastewater treatment;
  13. Antimicrobial resistance in water: the remediation potential of nanomaterials;
  14. Challenges in the use of nanomaterials in wastewater treatment.

Prof. Dr. Nhamo Chaukura
Prof. Dr. Alex Kuvarega
Prof. Dr. Rangabhashiyam Selvasembian
Guest Editors

Manuscript Submission Information

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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. Applied Sciences 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 2000 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.


  • adsorption
  • emerging pollutants
  • mineralization
  • nanocomposites, photodegradation
  • porous materials
  • water remediation

Published Papers (1 paper)

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Photocatalytic Degradation of Methylene Blue Dye by Electrospun Binary and Ternary Zinc and Titanium Oxide Nanofibers
Appl. Sci. 2021, 11(20), 9720; https://doi.org/10.3390/app11209720 - 18 Oct 2021
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Synthetic dyes, dispersed in water, have harmful effects on human health and the environment. In this work, Ti and/or Zn oxide nanofibers (NFs) with engineered architecture and surface were produced via electrospinning followed by calcination. Calcination and subsequent cooling were operated at fast [...] Read more.
Synthetic dyes, dispersed in water, have harmful effects on human health and the environment. In this work, Ti and/or Zn oxide nanofibers (NFs) with engineered architecture and surface were produced via electrospinning followed by calcination. Calcination and subsequent cooling were operated at fast rates to generate porous NFs with capture centers to reduce the recombination rate of the photogenerated charges. After morphological and microstructural characterisation, the NFs were comparatively evaluated as photocatalysts for the removal of methylene blue from water under UV irradiation. The higher band gap and lower crystallinity were responsible for the lower photocatalytic activity of the ternary oxides (ZnTiO3 and Zn2TiO4) towards the degradation of the dye. The optimal loads of the highly performing binary oxides were determined. By using 0.66 mg mL−1 wurtzite ZnO for the discoloration of an aqueous solution with a dye concentration of 15 µM, a higher rate constant (7.94 × 10−2 min−1) than previously reported was obtained. The optimal load for anatase TiO2 was lower (0.33 mg mL−1). The corresponding rate constant (1.12 × 10−1 min−1) exceeds the values reported for the commonly used P25–TiO2 benchmark. The catalyst can be reused twice without any regeneration treatment, with 5.2% and 18.7% activity decrease after the second and third use, respectively. Full article
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