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Catalysis in Advanced Oxidation Processes for Pollution Control
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Catalysis in Advanced Oxidation Processes for Pollution Control

A topical collection in Catalysts (ISSN 2073-4344).

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Editors

Prof. Dr. Rongfu Huang

E-Mail Website
Collection Editor
Sichuan Provincial Key Laboratory of Universities on Environmental Science and Engineering, MOE Key Laboratory of Deep Earth Science and Engineering, College of Architecture and Environment, Sichuan University, Chengdu 610065, China
Interests: analysis of complex environmental pollutants; monitoring and treatment of water pollution in the oil and gas industry; advanced oxidation; environmental catalytic technology
Dr. Fei Chang

E-Mail Website
Collection Editor
School of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, China
Interests: semiconductor photocatalysis/sonocatalysis; fabrication of functional materials for use in environmental protection; organic transformations; NO removal

Topical Collection Information

Dear Colleagues,

With the advancement of industrialization and urbanization, the discharge of large amounts of wastewater has placed significant pressure on the ecological environment. Wastewater treatment is not only crucial for the sustainable use of water resources, but is also an essential measure for protecting the ecosystem and safeguarding human health. Advanced oxidation processes, which emerged alongside the development of chemical oxidation methods, are techniques that employ the generation of reactive species to purify wastewater. They offer advantages such as mild reaction conditions, high efficiency, convenience, and no secondary pollution. Therefore, we arrange this Topical Collection, titled "Advanced Oxidation Processes for Wastewater Treatment", focusing on the latest research and application developments in the field. Topics of relevance may include, but are not limited to, the following areas:

1) Advancements and trends in advanced oxidation processes for wastewater treatment;

2)  The latest synthetic methods of relevant AOP catalysts for wastewater treatment;

3) Various modification strategies for AOP catalysts;

4) Novel characterization and structural analysis techniques of AOP catalysts;

5) Various contaminants in wastewater, including but not limited to organic dyes, pharmaceuticals, pesticides, detergents, endocrine disruptors, algae and microorganisms, radionuclides, herbicides, microplastics, oil and grease, heavy metals, perfluorinated compounds, cosmetics, and other emerging contaminants;

6) Intermediate identification and reaction pathways of contaminants during advanced oxidation processes;

7) Reactive species generation and detection during advanced oxidation processes;

8) Reactor design and its impact on advanced oxidation processes;

9) The integration of several advanced oxidation processes;

10) Advanced oxidation processes for real wastewater treatment;

11) DFT calculations relevant to structures, properties, and reaction paths;

12）Fundamental mechanisms of advanced oxidation processes.

Prof. Dr. Rongfu Huang
Dr. Fei Chang
Collection 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 collection 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

  • advancement
  • synthetic method
  • modification strategies
  • structural analysis
  • contaminants
  • intermediate identification
  • reaction pathways
  • reactive species
  • reactor design
  • integration
  • DFT calculations

Published Papers (3 papers)

Download All Papers

2025

43 pages, 2221 KB  
Review
Recent Progress in Catalytically Driven Advanced Oxidation Processes for Wastewater Treatment
by Tian-Hua Zheng, Zhen-Zhong Zhang, Yue Liu and Liang-Hua Zou
Catalysts 2025, 15(8), 761; https://doi.org/10.3390/catal15080761 - 8 Aug 2025
Viewed by 654
Abstract
With the increasing severity of global water pollution, traditional wastewater treatment methods have gradually revealed limitations in dealing with complex and refractory pollutants. Advanced oxidation processes (AOPs) have emerged as a promising alternative due to their ability to generate highly reactive radicals (such [...] Read more.
With the increasing severity of global water pollution, traditional wastewater treatment methods have gradually revealed limitations in dealing with complex and refractory pollutants. Advanced oxidation processes (AOPs) have emerged as a promising alternative due to their ability to generate highly reactive radicals (such as hydroxyl and sulfate radicals) that can effectively degrade a wide range of pollutants. This review provides a detailed overview of various AOP technologies, including Fenton processes, ozone-based AOPs, persulfate-based AOPs, photocatalytic AOPs, electrochemical AOPs, and sonochemical AOPs, focusing on their fundamental principles, reaction mechanisms, catalyst design, and application performance in treating different types of wastewater. The research results show that the improved Fenton process can achieve a chemical oxygen demand (COD) removal rate of up to 85% when treating pharmaceutical wastewater. Photocatalytic AOP technology demonstrates higher degradation efficiency when treating industrial wastewater containing refractory pollutants. In addition to effectively degrading refractory pollutants and reducing dependence on traditional biological treatment methods, these advanced oxidation processes can also significantly reduce secondary pollution generated during the treatment process. Moreover, by optimizing AOP technologies, the deep mineralization of harmful substances in wastewater can be achieved, reducing the potential pollution risks to groundwater and soil while also lowering energy consumption during the treatment process. Additionally, this review discusses the challenges faced by AOPs in practical applications, such as high energy consumption, insufficient catalyst stability, and secondary pollution. This review summarizes the research progress and application trends of catalytically driven AOPs in the field of wastewater treatment over the past five years. It aims to provide a comprehensive reference for researchers and engineering professionals on the application of AOPs in wastewater treatment, promoting the further development and practical implementation of these technologies. Full article
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Graphical abstract

13 pages, 3810 KB  
Article
Solar-Driven Selective Benzyl Alcohol Oxidation in Pickering Emulsion Stabilized by CNTs/GCN Hybrids Photocatalyst
by Yunyi Han, Yuwei Hou, Xuezhong Gong, Yu Zhang, Meng Wang, Pekhyo Vasiliy Ivanovich, Meili Guan and Jianguo Tang
Catalysts 2025, 15(8), 753; https://doi.org/10.3390/catal15080753 - 7 Aug 2025
Viewed by 551
Abstract
Herein, a bi-functional composite photocatalyst was synthesized by integrating carbon nanotubes (CNTs) and graphitic carbon nitride (GCN) via a facile electrostatic self-assembly strategy. The resulting CNTs/GCN composite served dual roles as both a solid emulsifier and a photocatalyst, enabling highly efficient photocatalytic benzyl [...] Read more.
Herein, a bi-functional composite photocatalyst was synthesized by integrating carbon nanotubes (CNTs) and graphitic carbon nitride (GCN) via a facile electrostatic self-assembly strategy. The resulting CNTs/GCN composite served dual roles as both a solid emulsifier and a photocatalyst, enabling highly efficient photocatalytic benzyl alcohol oxidation within a Pickering emulsion system. The relationship between emulsion droplet size and solid emulsifier dosage was investigated and optimized. The enhanced photocatalytic function was supported by an improved photocurrent response and reduced charge-transfer resistance, attributed to superior charge separation efficiency. Consequently, the benzyl alcohol conversion efficiency achieved in the Pickering emulsion system (58.9%) was three-fold of that observed in a traditional oil–water non-emulsion system (19.0%). Key active species were identified as photoholes, and an interfacial reaction mechanism was proposed. This work provides a new approach for extending photocatalytic applications in aqueous environments to diverse organic conversion reactions through the construction of multifunctional photocatalysts. Full article
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Graphical abstract

24 pages, 4115 KB  
Review
Polyoxometalate-Based Photocatalytic New Materials for the Treatment of Water Pollutants: Mechanism, Advances, and Challenges
by Xiaoyu Qiu and Rui Wang
Catalysts 2025, 15(7), 613; https://doi.org/10.3390/catal15070613 - 21 Jun 2025
Viewed by 751
Abstract
Water, the source of life, is undeniably essential to all living beings in nature. However, the process of industrialization has led to the pollution of water resources. Photocatalytic water treatment technology can convert solar energy into environmentally friendly and renewable chemical energy, effectively [...] Read more.
Water, the source of life, is undeniably essential to all living beings in nature. However, the process of industrialization has led to the pollution of water resources. Photocatalytic water treatment technology can convert solar energy into environmentally friendly and renewable chemical energy, effectively degrading organic pollutants in water. This offers a promising solution for the purification of water environments. The development of high-performance photocatalysts is crucial for photocatalytic reactions. Polyoxometalates (POMs) are anionic metal oxide clusters that come in various sizes and shapes. Their unique electronic properties, tunable structures, and photocatalytic activity make them highly promising materials for the efficient degradation of organic pollutants in water. This review summarizes the recent advances in emerging POM-based photocatalytic materials for water treatment, elaborating on their mechanisms of action. Finally, the current development prospects and the future challenges of POM-based photocatalytic materials are envisioned. Full article
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