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Catalysts
Special Issues
Novel and Commercially Applicable Environmental Catalysts and Photocatalysts
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Novel and Commercially Applicable Environmental Catalysts and Photocatalysts

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

Deadline for manuscript submissions: closed (10 September 2022) | Viewed by 5374

Special Issue Editors

Dr. Javier Fernández-Catalá

E-Mail Website
Guest Editor
Nano and Molecular Systems Research Unit, University of Oulu, FIN-90014 Oulu, Finland
Interests: photocatalysis; catalysis; heterojunction materials; microreactors; environmental applications
Prof. Dr. Ángel Berenguer-Murcia

E-Mail Website
Guest Editor
Departamento de Química Inorgánica e Instituto Universitario de Materiales, Universidad de Alicante, 03080 Alicante, Spain
Interests: nanomaterials; catalysis; hierarchical materials; energy

Special Issue Information

Dear Colleagues,

One of the relevant challenges for policy makers, society, and the scientific community is environmental preservation due to the negative impacts of fossil fuels and the rising pollution of air, soil, and water. In this sense, environmental catalysis plays a crucial role in sustainable development via the design of novel catalytic materials and technologies. Additionally, another interesting approach is the redesign of commercial catalysts to improve their performance and their use in alternative environmental applications. For this reason, this Special Issue will focus on studies where novel or commercial heterogeneous catalysts are used in relevant topics in environmental catalysis such as pollutant abatement, CO2 reduction, and H2 production, using novel and commercial catalysts or photocatalysts. Studies concerning synthesis methods, material characterization, and reaction mechanisms focusing on inorganic solids and carbon materials are also welcome.

We would like to encourage the participation of researchers interested in the subject of this Special Issue, “Novel and Commercially Applicable Environmental Catalysts and Photocatalysts”, in the form of research papers, communications, letters, and review articles to share their knowledge and results. We look forward to your participation in this Special Issue of Catalysts. 

Dr. Javier Fernández-Catalá
Prof. Dr. Ángel Berenguer-Murcia
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

  • heterogeneous catalyst
  • photocatalysis
  • nanomaterials
  • catalyst synthesis
  • catalyst characterization
  • catalyst design
  • pollutant abatement
  • CO2 reduction
  • H2 production

Published Papers (2 papers)

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Research

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18 pages, 4982 KiB  
Article
Modified BaMnO3-Based Catalysts for Gasoline Particle Filters (GPF): A Preliminary Study
by Verónica Torregrosa-Rivero, María-Salvadora Sánchez-Adsuar and María-José Illán-Gómez
Catalysts 2022, 12(11), 1325; https://doi.org/10.3390/catal12111325 - 28 Oct 2022
Cited by 4 | Viewed by 1186
Abstract
Gasoline engines, mainly gasoline direct injection engines (GDI) require, in addition to three-way catalysts (TWC), a new catalytic system to remove the formed soot. Gasoline Particle Filters (GPF) are, among others, a possible solution. BaMnO3 and copper-doped BaMnO3 perovskites seem to [...] Read more.
Gasoline engines, mainly gasoline direct injection engines (GDI) require, in addition to three-way catalysts (TWC), a new catalytic system to remove the formed soot. Gasoline Particle Filters (GPF) are, among others, a possible solution. BaMnO3 and copper-doped BaMnO3 perovskites seem to be a feasible alternative to current catalysts for GPF. The physical and chemical properties of these two perovskites determining the catalytic performance have been modified using different synthesis routes: (i) sol-gel, (ii) modified sol-gel and iii) hydrothermal. The deep characterization allows concluding that: (i) all samples present a perovskite-like structure (hexagonal), except BMC3 which shows a polytype one (due to the distortion caused by copper insertion in the lattice), and ii) when a low calcination temperature is used during synthesis, the sintering effect decreases and the textural properties, the reducibility and the oxygen mobility are improved. The study of soot oxidation simulating the hardest GDI scenarios reveals that, as for diesel soot removal, the best catalytic performance involves the presence of oxygen vacancies to adsorb and activate oxygen and a labile Mn (IV)/Mn (III) redox pair to dissociate the adsorbed oxygen. The combination of both properties allows the transport of the dissociated oxygen towards the soot. Full article
(This article belongs to the Special Issue Novel and Commercially Applicable Environmental Catalysts and Photocatalysts)
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Review

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28 pages, 6802 KiB  
Review
g-C3N4-Based Direct Z-Scheme Photocatalysts for Environmental Applications
by Javier Fernández-Catalá, Rossella Greco, Miriam Navlani-García, Wei Cao, Ángel Berenguer-Murcia and Diego Cazorla-Amorós
Catalysts 2022, 12(10), 1137; https://doi.org/10.3390/catal12101137 - 28 Sep 2022
Cited by 25 | Viewed by 3696
Abstract
Photocatalysis represents a promising technology that might alleviate the current environmental crisis. One of the most representative photocatalysts is graphitic carbon nitride (g-C3N4) due to its stability, cost-effectiveness, facile synthesis procedure, and absorption properties in visible light. [...] Read more.
Photocatalysis represents a promising technology that might alleviate the current environmental crisis. One of the most representative photocatalysts is graphitic carbon nitride (g-C3N4) due to its stability, cost-effectiveness, facile synthesis procedure, and absorption properties in visible light. Nevertheless, pristine g-C3N4 still exhibits low photoactivity due to the rapid recombination of photo-induced electron-hole (e−-h+) pairs. To solve this drawback, Z-scheme photocatalysts based on g-C3N4 are superior alternatives since these systems present the same band configuration but follow a different charge carrier recombination mechanism. To contextualize the topic, the main drawbacks of using g-C3N4 as a photocatalyst in environmental applications are mentioned in this review. Then, the basic concepts of the Z-scheme and the synthesis and characterization of the Z-scheme based on g-C3N4 are addressed to obtain novel systems with suitable photocatalytic activity in environmental applications (pollutant abatement, H2 production, and CO2 reduction). Focusing on the applications of the Z-scheme based on g-C3N4, the most representative examples of these systems are referred to, analyzed, and commented on in the main text. To conclude this review, an outlook of the future challenges and prospects of g-C3N4-based Z-scheme photocatalysts is addressed. Full article
(This article belongs to the Special Issue Novel and Commercially Applicable Environmental Catalysts and Photocatalysts)
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