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Catalysts
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Heterogeneous Catalysis in Air Pollution Control
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Heterogeneous Catalysis in Air Pollution Control

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

Deadline for manuscript submissions: 15 February 2026 | Viewed by 1295

Special Issue Editors

Dr. Lei Ma

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Guest Editor
School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
Interests: environmental catalysis; air pollution control
Special Issues, Collections and Topics in MDPI journals
Dr. Fudong Liu

E-Mail Website
Guest Editor
Department of Chemical and Environmental Engineering, University of California, Riverside, Riverside, CA 92521, USA
Interests: environmental catalysis; air pollution control
Dr. Yue Peng

E-Mail Website
Guest Editor
School of Environment, Tsinghua University, Beijing 100084, China
Interests: air pollutants control; environmental catalysis
Prof. Dr. Huazhen Chang

E-Mail Website
Guest Editor
School of Chemistry and Life Resources, Renmin University of China, Beijing 100872, China
Interests: environmental catalysis; air pollution control

Special Issue Information

Dear Colleagues,

Catalytic technology at the forefront of air pollution control involves advanced methods for reducing harmful emissions from industrial processes and vehicle exhausts. These cutting-edge catalysts are designed to enhance the conversion efficiency of pollutants such as carbon monoxide (CO), nitrogen oxides (NOx), volatile organic compounds (VOCs), and particulate matter (PM) into less harmful substances. Innovations in catalytic materials, including noble metals and metal oxides, have developed more efficient and durable catalysts. These advancements allow for lower operating temperatures, increased resistance to poisoning, and a longer service life, thereby significantly contributing to the mitigation of air pollution and improving overall environmental quality.

We invite submissions for a Special Issue of our journal focused on atmospheric environmental catalysis. This Issue aims to showcase the latest research and developments in the field, emphasizing the role of catalytic technologies in addressing air pollution challenges. We seek high-quality, original research articles and review papers that explore innovative catalyst designs, mechanisms of action, and the application of catalytic processes for the abatement of pollutants, such as CO, NOx, VOCs, and PM. Contributions that discuss the scalability of catalytic solutions are particularly welcome. We encourage researchers and experts from academia and industry to submit their work for this important and timely Special Issue.

Dr. Lei Ma
Dr. Fudong Liu
Dr. Yue Peng
Prof. Dr. Huazhen Chang
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 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

  • air pollutants
  • emission control
  • catalytic oxidation
  • selective catalytic reduction
  • greenhouse gas

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Published Papers (2 papers)

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Research

18 pages, 5597 KB  
Article
Loading Eu2O3 Enhances the CO Oxidation Activity and SO2 Resistance of the Pt/TiO2 Catalyst
by Zehui Yu, Jianyu Cai, Yudong Meng, Jian Li, Wenjun Liang and Xing Fan
Catalysts 2025, 15(8), 783; https://doi.org/10.3390/catal15080783 - 16 Aug 2025
Viewed by 488
Abstract
Pt/TiO2 and Pt-Eu2O3/TiO2 catalysts were prepared via the impregnation method for catalytic oxidation of CO. The Pt-2Eu2O3/TiO2 catalyst exhibited better CO oxidation activity as well as greater SO2 resistance than the [...] Read more.
Pt/TiO2 and Pt-Eu2O3/TiO2 catalysts were prepared via the impregnation method for catalytic oxidation of CO. The Pt-2Eu2O3/TiO2 catalyst exhibited better CO oxidation activity as well as greater SO2 resistance than the Pt/TiO2 catalyst. For the inlet gas consisting of 0.8% CO, 5% O2, and balanced N2, the lowest complete conversion temperatures (T100) of CO were 120 °C and 140 °C for the Pt-2Eu2O3/TiO2 and Pt/TiO2 catalysts, respectively. During the 72 h SO2-resistance test at 200 °C under an inlet gas composition of 0.8% CO, 5% O2, 15% H2O, 50 ppm SO2, and balanced N2, the CO conversion on the Pt-2Eu2O3/TiO2 catalyst remained >99%, while that on the Pt/TiO2 catalyst gradually decreased to 77.8%. Pre-loading 2 wt% Eu2O3 on TiO2 enhanced the dispersion of Pt, increased the proportion of Pt0, and facilitated the adsorption and dissociation of H2O, all of which promoted CO oxidation. SO2 preferentially occupied the Eu2O3 sites by forming stable sulfates on the Pt-2Eu2O3/TiO2 catalyst, which protected the Pt active sites from poisoning. The OH* species produced from the dissociation of H2O played a significant role in promoting CO oxidation through the formation of COOH* as the key reaction intermediate. The developed Pt-2Eu2O3/TiO2 catalyst has great application potential in terms of the removal of CO from industrial flue gases. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis in Air Pollution Control)
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14 pages, 4979 KB  
Article
Oxygen Vacancy-Engineered Ni:Co3O4/Attapulgite Photothermal Catalyst from Recycled Spent Lithium-Ion Batteries for Efficient CO2 Reduction
by Jian Shi, Yao Xiao, Menghan Yu and Xiazhang Li
Catalysts 2025, 15(8), 732; https://doi.org/10.3390/catal15080732 - 1 Aug 2025
Viewed by 454
Abstract
Accelerated industrialization and surging energy demands have led to continuously rising atmospheric CO2 concentrations. Developing sustainable methods to reduce atmospheric CO2 levels is crucial for achieving carbon neutrality. Concurrently, the rapid development of new energy vehicles has driven a significant increase [...] Read more.
Accelerated industrialization and surging energy demands have led to continuously rising atmospheric CO2 concentrations. Developing sustainable methods to reduce atmospheric CO2 levels is crucial for achieving carbon neutrality. Concurrently, the rapid development of new energy vehicles has driven a significant increase in demand for lithium-ion batteries (LIBs), which are now approaching an end-of-life peak. Efficient recycling of valuable metals from spent LIBs represents a critical challenge. This study employs conventional hydrometallurgical processing to recover valuable metals from spent LIBs. Subsequently, Ni-doped Co3O4 (Ni:Co3O4) supported on the natural mineral attapulgite (ATP) was synthesized via a sol–gel method. The incorporation of a small amount of Ni into the Co3O4 lattice generates oxygen vacancies, inducing a localized surface plasmon resonance (LSPR) effect, which significantly enhances charge carrier transport and separation efficiency. During the photocatalytic reduction of CO2, the primary product CO generated by the Ni:Co3O4/ATP composite achieved a high production rate of 30.1 μmol·g−1·h−1. Furthermore, the composite maintains robust catalytic activity even after five consecutive reaction cycles. Full article
(This article belongs to the Special Issue Heterogeneous Catalysis in Air Pollution Control)
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