Special Issue "Application of Photocatalysts in Air Pollution"

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

Deadline for manuscript submissions: 15 January 2024 | Viewed by 1089

Special Issue Editors

Institute of Environmental Engineering, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
Interests: advanced oxidation technologies; photothermocatalytic oxidation and reduction; air pollutants sampling and analysis; marine aerosols; atmospheric speciated mercury
Special Issues, Collections and Topics in MDPI journals
Department of Safety, Health and Environmental Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 82445, Taiwan
Interests: photocatalysis; advanced oxidation processes; pollution control technology; clean technology; pollutant transport phenomena
Special Issues, Collections and Topics in MDPI journals
Dr. Huazhen Shen
E-Mail Website
Guest Editor
College of Chemical Engineering, Huaqiao University, Xiamen 361021, China
Interests: photocatalytic technology; photoelectrical catalysts; simultaneous Hgo and NO removal; VOCs degradation

Special Issue Information

Dear Colleagues,

Photocatalysis technology has emerged as a promising solution for addressing various air pollutants, ranging from CO2 conversion and NOx oxidation to VOCs degradation and indoor air pollutant removal. By harnessing the power of photocatalysts such as TiO2, MnO2, and conjugated polymers, photon energy is absorbed and transformed into valuable chemical energy. Extensive research has been conducted to enhance the photon utility of photocatalysis through techniques such as modifying physical and chemical properties, heteroatom doping, creating heterojunctions, and optimizing reactor designs. Alongside treatment efficiencies, factors such as photocatalyst lifespan, tolerance to toxic components, and the selectivity of desired products are pivotal in evaluating the overall quality of photocatalysts. In particular, minimizing by-products, especially aromatic compounds, during VOCs degradation is of utmost importance.

The Special Issue aims to cover the in-depth exploration of recent progress and advancements in the field of photocatalysis. The scope of the Special Issue encompasses, but is not limited to, the preparation and characterization of innovative materials, the application of photocatalysis in tackling air pollutants, and the theoretical study of reaction mechanisms and kinetics.

If you would like to submit papers to this Special Issue or have any questions, please contact the editor, Mr. Ives Liu (ives.liu@mdpi.com).

Prof. Dr. Chung-Shin Yuan
Prof. Dr. Chung-Hsuang Hung
Dr. Huazhen Shen
Guest Editors

Manuscript Submission Information

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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.


  • photocatalysis application
  • innovative photocatalysts
  • reaction mechanisms and kinetics
  • air pollution control technologies
  • preparation and characterization of photocatalysts

Published Papers (1 paper)

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18 pages, 12136 KiB  
Prominent COF, g-C3N4, and Their Heterojunction Materials for Selective Photocatalytic CO2 Reduction
Catalysts 2023, 13(10), 1331; https://doi.org/10.3390/catal13101331 - 29 Sep 2023
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New heterojunction materials (HJs) were synthesized in-situ by molecularly bonding the monomers of a triazine-based covalent organic framework (bulk COF) on the template of exfoliated carbon nitride (g-C3N4). The photocatalysts reduced carbon dioxide to carbon monoxide in aqueous dispersions [...] Read more.
New heterojunction materials (HJs) were synthesized in-situ by molecularly bonding the monomers of a triazine-based covalent organic framework (bulk COF) on the template of exfoliated carbon nitride (g-C3N4). The photocatalysts reduced carbon dioxide to carbon monoxide in aqueous dispersions under UV irradiation. The g-C3N4 showed production of 6.50 μmol CO g−1 h−1 and the bulk COF of 2.77 μmol CO g−1 h−1. The CO yield was evaluated in sustainability photoreduction cycles and their CO2 uptake capacity and isosteric heat of adsorption were estimated. All the heterojunction photocatalysts obtained ameliorated CO production rates compared to the bulk COF. Finally, the influence of the Pt co-catalyst on the photocatalytic activities was determined without the addition of any sacrificial agent, and the COF:g-C3N4 heterojunction with the ratio of 1:10 was proven to be a photocatalytic system with an optimum and selective, CO yield of 7.56 μmol g−1 h−1. Full article
(This article belongs to the Special Issue Application of Photocatalysts in Air Pollution)
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