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Catalysts
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Catalytic Applications of Nanomaterials in Air Pollutant Degradation
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Catalytic Applications of Nanomaterials in Air Pollutant Degradation

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

Deadline for manuscript submissions: 20 February 2027 | Viewed by 1115

Editor

Prof. Dr. Qi Zhang

E-Mail Website
Guest Editor
Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
Interests: catalytic material; air pollutants; environmental governance; CO2 conversion; steam reforming

Special Issue Information

Dear Colleagues, 

Air pollution poses significant threats to human health and the environment, necessitating effective solutions for pollutant removal. Nanomaterials, with their unique properties such as high surface area, tunable reactivity, and diverse functionalities, have emerged as promising catalysts for air pollutant degradation. These materials can efficiently catalyze reactions that convert harmful pollutants like volatile organic compounds (VOCs), nitrogen oxides (NOx), and particulate matter into less harmful substances. The development and application of nanomaterial-based catalysts are crucial for improving air quality and mitigating the adverse effects of air pollution. This Special Issue aims at compiling the latest research on the catalytic applications of nanomaterials in air pollutant degradation. We invite submissions that cover the synthesis, characterization, and performance evaluation of nanomaterial catalysts for air pollution control. Topics of interest include the development of novel nanomaterials, the optimization of catalytic processes, and the elucidation of reaction mechanisms. Studies on the long-term stability and scalability of nanomaterial catalysts, as well as their integration into practical air purification systems, are particularly encouraged. By bringing together these contributions, we aim to provide a comprehensive overview of the current state and future directions of nanomaterials in air pollution control.

Prof. Dr. Qi Zhang
Guest Editor

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-anonymized 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

  • nanomaterials
  • catalysis
  • air pollutants
  • volatile organic compounds (VOCs)
  • nitrogen oxides (NOx)
  • particulate matter

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Published Papers (2 papers)

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Research

20 pages, 5283 KB  
Article
Fe-Modified Mesh-Structured Mn2O3/γ-Al2O3/Al Catalysts: Enriched Surface Active Oxygen and Superior Redox Properties for Enhanced NH3-SCO Performance
by Jingling Pei, Qingli Shu, Wenwen Zhang and Qi Zhang
Catalysts 2026, 16(7), 584; https://doi.org/10.3390/catal16070584 - 26 Jun 2026
Viewed by 252
Abstract
Ammonia-selective catalytic oxidation (NH3-SCO) is an effective technology for eliminating NH3 slip; however, the development of catalysts that simultaneously exhibit excellent low-temperature (<350 °C) activity and high N2 selectivity remains a significant challenge. A novel structured monolithic mesh-type Fe [...] Read more.
Ammonia-selective catalytic oxidation (NH3-SCO) is an effective technology for eliminating NH3 slip; however, the development of catalysts that simultaneously exhibit excellent low-temperature (<350 °C) activity and high N2 selectivity remains a significant challenge. A novel structured monolithic mesh-type Fex-Mn2O3/γ-Al2O3/Al catalyst was developed. XPS, H2-TPR, and O2-TPD results demonstrate that Fe doping markedly increases the concentration of surface-adsorbed active oxygen species and enhances the redox capability. As a result, the optimally doped Fe6.61-Mn2O3/γ-Al2O3/Al catalyst achieved complete NH3 conversion at 210 °C with a 75% N2 selectivity, outperforming previously reported Mn-based catalysts. Density functional theory (DFT) calculations further confirm that Fe modification enhances O2 adsorption energy. In addition, the introduction of Fe significantly improves the catalyst’s resistance to SO2 and H2O. In situ FTIR results indicate that the NH3-SCO reaction over Fe-Mn2O3/γ-Al2O3/Al proceeds predominantly via an internal selective catalytic reduction (i-SCR) pathway. Full article
(This article belongs to the Special Issue Catalytic Applications of Nanomaterials in Air Pollutant Degradation)
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15 pages, 3388 KB  
Article
Unlocking the Synergy of Coupled Cold Plasma and Luminous Textile Photocatalysis for Indoor Air Purification: Simultaneous Elimination of Ethyl Acetate and Microorganisms
by Sarra Karoui, Mohamed Aziz Hajjaji, Ahmed Amine Azzaz, Oussama Baaloudj, Mohamed el Kebir, Mohammod Hafizur Rahman and Amine Aymen Assadi
Catalysts 2026, 16(6), 541; https://doi.org/10.3390/catal16060541 - 10 Jun 2026
Viewed by 372
Abstract
This study investigates the simultaneous elimination of ethyl acetate (EA), a representative volatile organic compound (VOC), and Escherichia coli aerosols from indoor air using a continuous-flow dielectric barrier discharge (DBD) plasma reactor coupled with a photocatalytic luminous textile system (Cu/TiO2-coated fibers). [...] Read more.
This study investigates the simultaneous elimination of ethyl acetate (EA), a representative volatile organic compound (VOC), and Escherichia coli aerosols from indoor air using a continuous-flow dielectric barrier discharge (DBD) plasma reactor coupled with a photocatalytic luminous textile system (Cu/TiO2-coated fibers). The effects of applied voltage, relative humidity, and air-flow rate on pollutant removal and disinfection performance were systematically evaluated. Optimal DBD operation at 18 kV, 1 m3 h−1 airflow, and 70% relative humidity achieved single-process removal efficiencies of 77% for EA and 2 log reduction (CFU mL−1) for E. coli. When photocatalysis was coupled with DBD plasma, a significant combined effect was observed, increasing EA degradation to 87% and bacterial inactivation to 3.8 log (CFU mL−1). The coupling enhanced active-species generation, improved CO2 selectivity (up to 53%), and reduced residual ozone concentration. Humidity positively affected microbial inactivation due to °OH radical formation but slightly decreased VOC degradation by limiting ozone regeneration. Results demonstrate the efficiency and scalability of the DBD–photocatalysis hybrid system for multi-pollutant indoor air purification, offering rapid, low-temperature treatment suitable for industrial-scale applications. Full article
(This article belongs to the Special Issue Catalytic Applications of Nanomaterials in Air Pollutant Degradation)
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