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Catalysts
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Feature Papers in Environmental Catalysis
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Feature Papers in Environmental Catalysis

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

Deadline for manuscript submissions: closed (31 December 2022) | Viewed by 4033

Special Issue Editors

Prof. Dr. Dionysios (Dion) Demetriou Dionysiou

grade E-Mail Website
Guest Editor
Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE), University of Cincinnati, Cincinnati, OH 45221-0012, USA
Interests: advanced oxidation; advanced reduction; nanotechnology; water treatment; water reuse; water quality; (photo)catalysis; environmental catalysis; environmental sensors; emerging contaminants; cyanotoxins
Special Issues, Collections and Topics in MDPI journals
Dr. Salomé Soares

E-Mail Website
Guest Editor
Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials (LSRE-LCM), Department of Chemical Engineering, Faculty of Engineering, University of Porto, 4200-465 Porto, Portugal
Interests: heterogeneous catalysis; air and water treatment; hydrogenation and oxidation reactions; energy conversion; preparation and characterization of catalysts and materials; smart textiles
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Environmental catalysis has become one of the most important areas within the catalysis field, and a theme of growing interest. Therefore, this Special Issue aims to collect original research articles, reviews, short communications, and perspectives reflecting the trends in this field. Submissions on the various aspects of environmental catalysis are welcome—namely, on the development of catalysts to remove inorganic and organic pollutants in air and water streams, valorization of wastes into useful products, innovative catalytic processes for pollution control, and new catalytic processes for environmental applications, among others. Manuscripts on applying a life cycle assessment to evaluate the sustainability of innovative catalytic processes and reaction pathways are also welcomed.

Prof. Dr. Dionysios (Dion) Demetriou Dionysiou
Dr. Olívia Salomé G.P. Soares 
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 catalysts
  • catalytic oxidation
  • catalytic reduction
  • innovative catalytic processes

Published Papers (2 papers)

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Research

18 pages, 3805 KiB  
Article
Ni2P-Modified P-Doped Graphitic Carbon Nitride Hetero-Nanostructures for Efficient Photocatalytic Aqueous Cr(VI) Reduction
by Evangelos K. Andreou, Eirini D. Koutsouroubi, Ioannis Vamvasakis and Gerasimos S. Armatas
Catalysts 2023, 13(2), 437; https://doi.org/10.3390/catal13020437 - 17 Feb 2023
Cited by 4 | Viewed by 1823
Abstract
Targeting heterostructures with modulated electronic structures and efficient charge carrier separation and mobility is an effective strategy to improve photocatalytic performance. In this study, we report the synthesis of 2D/3D hybrid heterostructures comprising P-doped graphitic carbon nitride (g-C3N4) nanosheets [...] Read more.
Targeting heterostructures with modulated electronic structures and efficient charge carrier separation and mobility is an effective strategy to improve photocatalytic performance. In this study, we report the synthesis of 2D/3D hybrid heterostructures comprising P-doped graphitic carbon nitride (g-C3N4) nanosheets (ca. 50–60 nm in lateral size) and small-sized Ni2P nanoparticles (ca. 10–12 nm in diameter) and demonstrate their prominent activity in the photocatalytic reduction of Cr(VI). Utilizing a combination of spectroscopic and electrochemical characterization techniques, we unveil the reasons behind the distinct photochemical performance of these materials. We show that Ni2P modification and P doping of the g-C3N4 effectively improve the charge-carrier transportation and spatial separation through the interface of Ni2P/P-doped g-C3N4 junctions. As a result, the catalyst containing 15 wt.% Ni2P exhibits superior photocatalytic activity in the detoxification of Cr(VI)-contaminated effluents under UV-visible light illumination, presenting an apparent quantum yield (QY) of 12.5% at 410 nm, notably without the use of sacrificial additives. This study marks a forward step in understanding and fabricating cost-effective photocatalysts for photochemical applications. Full article
(This article belongs to the Special Issue Feature Papers in Environmental Catalysis)
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10 pages, 4434 KiB  
Article
Selective Oxidation of Furfural at Room Temperature on a TiO2-Supported Ag Catalyst
by Achraf Sadier, Sébastien Paul and Robert Wojcieszak
Catalysts 2022, 12(8), 805; https://doi.org/10.3390/catal12080805 - 22 Jul 2022
Cited by 3 | Viewed by 1612
Abstract
The catalytic performance of the Ag/TiO2 catalyst was evaluated in the oxidation of furfural (FF) to furoic acid (FA) in an alkaline aqueous solution under 15 bar of air in a batch reactor. The catalytic activity, yield, and stability of the catalyst [...] Read more.
The catalytic performance of the Ag/TiO2 catalyst was evaluated in the oxidation of furfural (FF) to furoic acid (FA) in an alkaline aqueous solution under 15 bar of air in a batch reactor. The catalytic activity, yield, and stability of the catalyst were compared as a function of different reaction parameters including temperature (25–110 °C), nature of the atmosphere, base equivalent (nbase/nFF = 0.25–3), and nature of the inorganic bases used (NaOH, NaHCO3, and Na2CO3). Under optimum conditions, the yield of FA (96%) was achieved at room temperature, with an excellent carbon balance (>98%). The recyclability of the catalyst was also studied and the catalytic activity of the Ag/TiO2 catalyst slightly declined due to an increase in particle size as confirmed by TEM studies. Full article
(This article belongs to the Special Issue Feature Papers in Environmental Catalysis)
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