Recent Advances in g-C3N4-Based Photocatalysts

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Photocatalysis".

Deadline for manuscript submissions: 31 May 2024 | Viewed by 1857

Special Issue Editors


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Guest Editor
Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research, Athens 15341, Greece
Interests: photocatalysis; fluorescent materials; semiconductors; environmental science; nanomaterials

E-Mail Website
Guest Editor
Institute of Nanoscience and Nanotechnology, National Centre for Scientific Research, Athens 15341, Greece
Interests: graphene; photocatalysis; nanotechnology; 2D nanostructures; chemistry; energy and environmental applications

Special Issue Information

Dear Colleagues,

Intensive research efforts are dedicated to the development of photocatalytic systems with respect to our increased awareness for environmental protection. Graphitic carbon nitride, g-C3N4, has emerged as a leading photocatalyst with excellent chemical and thermal stability and straightforward preparation methodologies that easily allow the synthesis of large quantities. As a photocatalyst, it has been applied for a series of environmental applications, including the degradation of pollutants, hydrogen evolution, carbon dioxide reduction and removal of nitrogen oxides.

In order to outline the major recent progress in the field, this Special Issue is mainly focusing on the following topics:

- Photocatalysis for CO2 reduction, NOX removal and H2 formation;

- Decomposition of organic micropollutants;

- Synthesis and characterization of heterojunction photocatalysts with improved performance;

- Structure–properties relation and evaluation οf optimum composition;

- Water treatment and decontamination.

If you would like to submit papers to this Special Issue or have any questions, please contact the editor, Mr. Ives Liu ([email protected]).

Dr. Panagiotis Dallas
Dr. Christos Trapalis
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. Catalysts 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 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

  • photocatalysis
  • carbon dioxide reduction
  • g-C3N4
  • reactive oxygen species
  • nitrogen oxides

Published Papers (1 paper)

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Research

15 pages, 4670 KiB  
Article
Heterogeneous Photocatalytic Oxidation and Detoxification of Simulated Agricultural Wastewater Contaminated with Boscalid Fungicide Using g-C3N4 Catalyst
by Maria Antonopoulou, Anna Tzamaria, Kleopatra Miserli, Christos Lykos and Ioannis Konstantinou
Catalysts 2024, 14(2), 112; https://doi.org/10.3390/catal14020112 - 31 Jan 2024
Viewed by 859
Abstract
In the present study, the photocatalytic oxidation and detoxification of aqueous matrices contaminated with boscalid using g-C3N4 catalyst and UV-A light was investigated. The UV-A/g-C3N4 process was found to achieve higher than 83% removal of boscalid in [...] Read more.
In the present study, the photocatalytic oxidation and detoxification of aqueous matrices contaminated with boscalid using g-C3N4 catalyst and UV-A light was investigated. The UV-A/g-C3N4 process was found to achieve higher than 83% removal of boscalid in both matrices, with h+ and O2 being the main species. UHPLC-HRMS analysis allowed the identification of five TPs, while the main degradation pathways involved hydroxylation, cyclization, and dechlorination. Scenedesmus rubescens microalgae species was exposed to boscalid solutions and lake water spiked with the fungicide before the photocatalytic treatment and inhibition in the growth rate was observed. An increase in the toxicity was also observed during the first stages of the treatment. The results from the in silico study correlate with the observed evolution of ecotoxicity during the application of the process, as some of the identified TPs were found to be toxic or very toxic for aquatic organisms. However, prolonged application of the process can lead to detoxification. It was also observed that the g-C3N4 catalyst can retain its photochemical stability and activity after at least three cycles. However, a slight decrease in the activity was observed when repeated another two times. This study demonstrated that the suggested photocatalytic process can both decrease the harmful effects of boscalid as well as effectively lower its concentration in water. Full article
(This article belongs to the Special Issue Recent Advances in g-C3N4-Based Photocatalysts)
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