Environmentally Friendly Catalysis for Green Future

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 1750

Special Issue Editor


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Guest Editor
School of Chemistry and Chemical Engineering, Guangxi Colleges and Universities Key Laboratory of New Chemical Application Technology in Resources, Guangxi University, Nanning, China
Interests: environmentally friendly catalytic processes; 2D materials; synthesis and separation of fine chemicals; photocatalysis; thermocatalysis; CO2 conversion; H2 production; heterogeneous catalysis
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Special Issue Information

Dear Colleagues,

Over the past few decades, the advancement of human society and industrialization has led to severe environmental issues, such as air and water pollution, the greenhouse effect, and climate change. Environmentally Friendly Catalysis is crucial in addressing the acute environmental challenges we currently confront. The catalytic conversion of CO2, VOC, NOx, SOx, and other gaseous pollutants is an effective approach to coping with the greenhouse effect and climate change, encompassing thermal catalysis, electrocatalysis, and photocatalysis. Moreover, the catalytic degradation and reduction in organic pollutants and heavy metal ions in water represent advanced technologies that have drawn considerable attention in wastewater treatment.

The Special Issue "Environmentally Friendly Catalysis for Green Future" explores the most recent progress and innovations in catalysis that contribute to environmental sustainability. It is a platform for researchers, scientists, and engineers to present their discoveries regarding catalysts and catalytic processes that promote environmental improvement and energy conversion.

The content of this Special Issue encompasses:

  • The design, construction, and development of novel environmentally friendly catalysts.
  • The application of environmentally friendly catalysis in diverse fields.
  • The summary and discussion of advanced pollution reduction technologies.
  • Thermal catalysis, photocatalysis, and electrocatalysis for environmental governance and energy conversion.

We cordially invite you to submit original research articles, review papers, and short communications contributing to the comprehension and advancement of environmentally friendly catalysis. Together, we can forge a greener and more sustainable future.

Prof. Dr. Zuzeng Qin
Guest Editor

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 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

  • environmentally friendly catalysis
  • thermal catalysis
  • photocatalysis
  • electrocatalysis
  • CO2 reduction
  • degradation
  • environmental remediation
  • green chemistry

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Published Papers (2 papers)

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Research

16 pages, 3834 KiB  
Article
Green Synthesis of TiO2-CeO2 Nanocomposites Using Plant Extracts for Efficient Organic Dye Photodegradation
by Dinh Quang Ho, Van Duy Lai, Quynh Anh Nguyen, D. Duc Nguyen and Duong Duc La
Catalysts 2025, 15(6), 583; https://doi.org/10.3390/catal15060583 - 12 Jun 2025
Viewed by 634
Abstract
The growing presence of hazardous organic pollutants in wastewater poses severe environmental and health risks, necessitating sustainable and efficient treatment solutions. Traditional remediation methods have limitations, highlighting the need for innovative approaches. A green synthesis method was developed to produce TiO2-CeO [...] Read more.
The growing presence of hazardous organic pollutants in wastewater poses severe environmental and health risks, necessitating sustainable and efficient treatment solutions. Traditional remediation methods have limitations, highlighting the need for innovative approaches. A green synthesis method was developed to produce TiO2-CeO2 nanocomposites using Cleistocalyx operculatus leaf extract. The photocatalytic efficiency of the synthesized nanocomposites was evaluated under simulated sunlight by degrading Methylene Blue (MB) dye. Various compositions were tested to determine the optimal performance. The 0.1% TiO2-CeO2 nanocomposite achieved the highest degradation efficiency (95.06% in 150 min) with a reaction rate constant (k) of 18.5 × 10−2 min−1, outperforming commercial TiO2 (P25, 74.85%, k ≈ 3.7 × 10−2 min−1). Additionally, the material maintained excellent stability over eight consecutive cycles with only a slight decrease in efficiency from 95.85% to 93.28%. The enhanced photocatalytic activity is attributed to the synergistic effects of CeO2 incorporation, which enhances charge separation, extends visible light absorption, and promotes reactive oxygen species (ROS) generation. These findings highlight the potential of green-synthesized TiO2-CeO2 nanocomposites as a cost-effective and sustainable solution for wastewater treatment. Full article
(This article belongs to the Special Issue Environmentally Friendly Catalysis for Green Future)
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18 pages, 2434 KiB  
Article
Efficient Degradation of Tetracycline via Cobalt Phosphonate-Activated Peroxymonosulfate: Mechanistic Insights and Catalytic Optimization
by Xinlin Huang, Wenting Sun, Rong Bai, Yuchen He, Jingdan Li, Yuwei Pan, Ming Zhang and Guangyu Wu
Catalysts 2025, 15(6), 580; https://doi.org/10.3390/catal15060580 - 10 Jun 2025
Viewed by 701
Abstract
The persistent contamination of aquatic systems by antibiotics, particularly tetracycline (TC), which induces antibiotic resistance genes and chronic toxicity to aquatic organisms, necessitates advanced oxidation processes. Herein, cobalt phosphonate (CoP) nanosheets with tailored Co/P ratios were synthesized to activate peroxymonosulfate (PMS) for TC [...] Read more.
The persistent contamination of aquatic systems by antibiotics, particularly tetracycline (TC), which induces antibiotic resistance genes and chronic toxicity to aquatic organisms, necessitates advanced oxidation processes. Herein, cobalt phosphonate (CoP) nanosheets with tailored Co/P ratios were synthesized to activate peroxymonosulfate (PMS) for TC degradation under visible light. Through a controlled-variable approach, the reaction parameters were systematically optimized. The refined CoP-3 system achieved 90.7% TC removal within 6 min, with the optimal degradation parameters determined as 0.1 g/L CoP-3 and 0.2 g/L PMS. Based on liquid chromatography–tandem mass spectrometry (LC-MS/MS) analysis, three degradation pathways were inferred. The toxicity of TC and its intermediates was assessed using quantitative structure–activity relationships (QSARs) via the Toxicity Estimation Software Tool (T.E.S.T). The results demonstrated reduced acute toxicity in intermediates compared to the parent compound. In practical applications, the catalyst achieved 64.7% and 80.8% TC removal rates in livestock wastewater and river water, respectively, while maintaining stable activity over four cycles. This demonstrates significant potential for engineering applications. The results were verified by free radical quenching experiments and were attributed to enhanced charge separation and an h+-dominated non-free radical pathway. This work provides a sustainable strategy for antibiotic remediation based on transition metal phosphonates. Full article
(This article belongs to the Special Issue Environmentally Friendly Catalysis for Green Future)
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