Light-Based Reactions for Water and Wastewater Treatment

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Purification Technology".

Deadline for manuscript submissions: 20 November 2024 | Viewed by 480

Special Issue Editor


E-Mail Website
Guest Editor
Laboratório de Novos Materiais, Universidade Evangélica de Goiás, Anápolis 75083-515, GO, Brazil
Interests: photocatalysis; purification techniques; chromatography methods; green chemistry; flow chemistry

Special Issue Information

Dear Colleagues,

We are pleased to invite you to contribute to our upcoming Special Issue in MDPI Separations, focusing on the development and applications of light-based strategies for water and wastewater treatment. These innovative methods leverage the unique properties of various light sources to effectively disinfect and purify water and wastewater, targeting a wide range of pathogens and contaminants.

Our aim is to curate a diverse collection of original research articles and review papers that explore (photo)catalysts, devices, analytical methods, purification techniques and technology, chromatography and separation methods, and processes for application in water and wastewater treatment. We welcome submissions from various disciplines, including chemistry, physics, material science, engineering, and related fields. We seek innovative and original contributions that not only broaden but also advance our scientific and technical understanding of these processes.

We are particularly interested in papers that delve into the development and optimization of light-based processes for inactivating a wide range of pathogens and degrading various contaminants, such as pharmaceuticals, pesticides, and more. Topics of interest include, but are not limited to, the following:

  • Synthesis and characterization of photocatalysts and photobiocatalysts for water and wastewater treatment.
  • Analytical analysis of water and wastewater for control and decontamination.
  • Development and applications of photoactive materials for water and wastewater treatment.
  • Advanced oxidation processes.
  • Green chemistry in the field of water and wastewater treatment.
  • Environmental remediation for water and wastewater treatment.
  • Purification techniques and technology.
  • Chromatography and separation methods.
  • Chemical separation and characterization.
  • Flow chemistry.

We look forward to receiving your innovative and impactful contributions.

Prof. Dr. Lucas D. Dias
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. Separations is an international peer-reviewed open access monthly 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

  • photocatalysis
  • catalysts
  • degradation
  • microorganisms
  • pharmaceuticals
  • pesticides
  • sustainable processes
  • green chemistry
  • purification techniques

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

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

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

14 pages, 2939 KiB  
Article
Photocatalytic Degradation of Ciprofloxacin: A Combined Experimental and Theoretical Study Using Curcumin and Hydrogen Peroxide
by Flórida L. P. de Paiva, Maria Vivian C. Silva, Ana Lara F. Mendonça, Cristiane S. Araújo, Lóide O. Sallum, Antonio S. N. de Aguiar, Alessandra R. Lima, Hamilton B. Napolitano, Mário J. F. Calvete and Lucas D. Dias
Separations 2024, 11(9), 260; https://doi.org/10.3390/separations11090260 - 2 Sep 2024
Viewed by 314
Abstract
Contamination of soil, water, and wastewater by pharmaceuticals, including antibiotics, is a global health problem. This work evaluated the use of a natural compound, curcumin (CUR), as a homogeneous photocatalyst, together with hydrogen peroxide (H2O2) as a benign oxidant, [...] Read more.
Contamination of soil, water, and wastewater by pharmaceuticals, including antibiotics, is a global health problem. This work evaluated the use of a natural compound, curcumin (CUR), as a homogeneous photocatalyst, together with hydrogen peroxide (H2O2) as a benign oxidant, to promote the photodegradation of ciprofloxacin (CIP). Furthermore, we carried out theoretical calculations using density functional theory (DFT) to assess the chemical reactivity of ciprofloxacin. In addition, the intermolecular interaction patterns of two crystalline polymorphs of the antibiotic drug were analyzed through Hirshfeld surfaces. Finally, calculations using the TD-DFT formalism were carried out to understand the effects on the CIP molecule caused by the simultaneous presence of the CUR molecule and ultraviolet-visible light (UV-Vis). A photooxidative effect was observed in the presence of the CUR photocatalyst (CIP + CUR (1:0.5)), resulting in a degradation of CIP of up to 24.4%. However, increasing the concentration of the CUR photocatalyst (ciprofloxacin + curcumin (1:1)) decreased the photodegradation of CIP, which may be caused by competition between the CIP molecule and CUR for ROS generated in situ. Additionally, the calculation results showed that the electronic excitations caused by the associated CIP + CUR structures affect the CIP molecule, resulting in the effects observed experimentally. The results show that CUR, when applied as a photosensitizing catalyst, presents synergistic potential with H2O2 in the photocatalytic degradation of ciprofloxacin. This photocatalytic process can be applied to the environmental remediation of pharmaceutical micropollutants, a subject of ongoing studies. Full article
(This article belongs to the Special Issue Light-Based Reactions for Water and Wastewater Treatment)
Show Figures

Figure 1

Back to TopTop