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Catalysts
Special Issues
Heterogeneous Catalysis for a Greener Environment
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Heterogeneous Catalysis for a Greener Environment

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

Deadline for manuscript submissions: closed (30 September 2025) | Viewed by 592

Special Issue Editors

Prof. Dr. Juan García Rodríguez

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Guest Editor
Group of Catalysis and Separation Processes (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, 28040 Madrid, Spain
Interests: adsorption processes; catalytic wet air oxidation; synthesis and characterization of carbon materials; wastewater treatments
Special Issues, Collections and Topics in MDPI journals
Dr. Silvia Álvarez-Torrellas

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Guest Editor
Grupo de Catálisis y Procesos de Separación-CyPS, Departamento de Ingeniería Química y de Materiales, Facultad de Ciencias Químicas, Complutense University, Avda Complutense S-N, E-28040 Madrid, Spain
Interests: adsorption processes; heterogeneous catalysis; modeling; nanostructured carbon materials
Special Issues, Collections and Topics in MDPI journals
Dr. Jaime Carbajo Olleros

E-Mail Website
Guest Editor
Group of Catalysis and Separation Processes (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, 28040 Madrid, Spain
Interests: photocatalysis; catalyst synthesis and characterization; catalytic wet peroxide oxidation; advanced oxidation processes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Water scarcity is a critical global challenge affecting over 2 billion people worldwide, with increasing population, industrial growth, and climate change exacerbating the problem. As freshwater resources become increasingly stressed, innovative technological solutions are essential to address this issue. Green heterogeneous catalysts have emerged as a promising water management approach, offering advanced water purification, treatment, and resource conservation methods.

The focus of this Special Issue is to provide a general overview of the main concepts and current advances in the heterogeneous catalysis field, including the use of catalytic processes as alternative treatment methods for aqueous pollutants, such as plastics, pharmaceutical, pesticide compounds, and numerous industrial chemicals, with regard to water remediation. Original research papers and short reviews addressing the synthesis and characterization of new heterogeneous catalysts, influences of different operating parameters and reactor types, reaction kinetics, and mechanisms and identification of intermediates are invited for submission.

Prof. Dr. Juan García Rodríguez
Dr. Silvia Álvarez-Torrellas
Dr. Jaime Carbajo Olleros
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 250 words) can be sent to the Editorial Office for assessment.

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 2200 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

  • catalytic processes
  • advanced oxidation processes
  • wastewater treatment
  • toxic-refractory wastewaters
  • synthesis of catalysts
  • reaction kinetics and mechanisms
  • identification of intermediates
  • low-cost catalysts
  • activity and stability of heterogeneous catalysts

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Published Papers (1 paper)

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Research

14 pages, 1153 KB  
Article
Greener Catalytic Oxidation of Azole Fungicides: Coupling EO–O3 on BDD with Kinetics and Mineralization Targets
by Joaquin R. Dominguez, Teresa González and David Simón-García
Catalysts 2025, 15(12), 1136; https://doi.org/10.3390/catal15121136 - 3 Dec 2025
Viewed by 383
Abstract
This study evaluates the abatement of four common azole fungicides—prochloraz, tebuconazole, tetraconazole, and penconazole—using ozonation (O3), electro-oxidation (EO on boron-doped diamond anode), and their coupling (EO–O3). A central composite design (CCD) with three coded factors—current (A), electrolyte (B), and [...] Read more.
This study evaluates the abatement of four common azole fungicides—prochloraz, tebuconazole, tetraconazole, and penconazole—using ozonation (O3), electro-oxidation (EO on boron-doped diamond anode), and their coupling (EO–O3). A central composite design (CCD) with three coded factors—current (A), electrolyte (B), and ozone concentration in the gas phase (C)—was employed to model three responses: pollutant abatement (%), apparent pseudo-first-order rate constant k (min−1), and TOC removal (%). Quadratic models showed good in-samples (R2 ≈ 0.84–0.86). Ozone and current dominate abatement and kinetics (with curvature in current), while the electrolyte penalizes mineralization and narrows the window for TOC removal. Under optimal conditions, 116 mA (current), 0.992 mM (electrolyte), and 7.09 ppm (ozone concentration), the EO–O3 configuration results in a TOC removal of 33.78%. At a reaction time of 10 min (total abatement of the pollutants), the hybrid EO–O3 configuration exhibits a specific energy consumption (SEC) of 1.825 kWh·m−3. We compare trends with the last decade of literature on ozone-based EAOPs, electro-peroxone variants, and BDD anodic oxidation, and outline practical guidance for its application and scale-up, and model refinement in predictive settings. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis for a Greener Environment)
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