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Catalysts
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Catalytic Carbon Emission Reduction and Conversion in the Environment
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Catalytic Carbon Emission Reduction and Conversion in the Environment

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

Deadline for manuscript submissions: 31 December 2025 | Viewed by 3915

Special Issue Editors

Prof. Dr. Pengwei Huo

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Guest Editor
Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: photocatalysis; CO2 reduction; energy conversion; nanomaterials design
Special Issues, Collections and Topics in MDPI journals
Dr. Xin Liu

E-Mail Website
Guest Editor
Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: VOCs degradation; flue gas denitrification; catalytic oxidation; nanomaterials design
Special Issues, Collections and Topics in MDPI journals
Dr. Xianghai Song

E-Mail Website
Guest Editor
Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: composite functional materials; green conversion of CO2; catalytic degradation
Special Issues, Collections and Topics in MDPI journals
Dr. Yangyang Yang

E-Mail Website
Guest Editor
Institute of Green Chemistry and Chemical Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
Interests: advanced oxidation processes; catalytic polymerization; nonradical pathway; persulfate; selective oxidation
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The escalating climate crisis in the environment demands urgent innovations in carbon management technologies to achieve global decarbonization goals. To address this urgent issue, innovative catalytic technologies for carbon emission reduction and conversion have emerged as powerful tools to achieve carbon neutrality and circular economy goals. This Special Issue focuses on cutting-edge research in catalytic carbon management, covering both fundamental advances and practical applications in environmental systems, aiming to provide a platform for sharing the latest breakthroughs in carbon emission reduction and conversion, fostering interdisciplinary collaboration to accelerate the development of sustainable solutions for a greener future. We invite contributions on novel catalytic strategies, including but not limited to the following:

  • Pollutant Degradation: Catalytic degradation of environmental pollutants into low-carbon products, especially CO2;
  • Carbon Capture and Storage (CCS): Advanced catalytic adsorbents, membranes, and mineralization techniques;
  • CO2 Conversion Technologies: Thermocatalytic, photocatalytic, electrocatalytic, and plasma-assisted CO2 reduction to value-added chemicals and fuels;
  • Waste-to-Resource Approaches: Catalytic upcycling of plastic waste and biomass into useful carbon-based materials;
  • Emerging Catalytic Materials: Single-atom catalysts, metal-organic frameworks (MOFs), and bio-inspired catalytic systems;
  • Process Optimization: Integrated catalytic systems for industrial applications, life cycle assessment, and techno-economic analysis.

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

Prof. Dr. Pengwei Huo
Dr. Xin Liu
Dr. Xianghai Song
Dr. Yangyang Yang
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

  • carbon catalytic materials
  • carbon emission reduction
  • carbon conversion
  • carbon neutrality
  • waste upcycling
  • environmental protection

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Further information on MDPI's Special Issue policies can be found here.

Published Papers (3 papers)

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Research

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15 pages, 19836 KB  
Article
Construction of A NiS/g-C3N4 Co-Catalyst-Based S-Scheme Heterojunction and Its Performance in Photocatalytic CO2 Reduction
by Qianyu Zhao and Hengbo Yin
Catalysts 2025, 15(6), 599; https://doi.org/10.3390/catal15060599 - 17 Jun 2025
Viewed by 756
Abstract
NiS nanoparticles were chemically deposited on the surface of g-C3N4, in situ, followed by high-temperature calcination to prepare x-NiS/g-C3N4 co-catalyst-based S-scheme heterojunction photocatalysts. Due to the intrinsic charge accumulation preference on specific crystal planes of g-C [...] Read more.
NiS nanoparticles were chemically deposited on the surface of g-C3N4, in situ, followed by high-temperature calcination to prepare x-NiS/g-C3N4 co-catalyst-based S-scheme heterojunction photocatalysts. Due to the intrinsic charge accumulation preference on specific crystal planes of g-C3N4, NiS nanoparticles selectively deposited on its surface and formed a strong interfacial contact, thereby constructing an S-scheme heterojunction with co-catalytic functionality. This structure effectively suppressesd the recombination of electron–hole pairs in the valence band, significantly enhancing the separation efficiency of photogenerated charge carriers, and thereby improving performance in photocatalytic CO2 reduction. Compared with pure g-C3N4, the x-NiS/g-C3N4 photocatalysts exhibit superior CO2 reduction activity. Among them, the sample with 1.0% NiS loading showed the best performance, achieving CO and CH4 production rates of 27.34 μmol/g and 13.87 μmol/g, respectively, within 4 h. Full article
(This article belongs to the Special Issue Catalytic Carbon Emission Reduction and Conversion in the Environment)
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Review

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20 pages, 5034 KB  
Review
Copper Active Sites in Metal–Organic Frameworks Advance CO2 Adsorption and Photocatalytic Conversion
by Enhui Jiang, Yan Yan and Yongsheng Yan
Catalysts 2025, 15(9), 856; https://doi.org/10.3390/catal15090856 - 4 Sep 2025
Viewed by 1403
Abstract
The photocatalytic reduction of CO2 into high-value chemicals utilizing solar energy represents a sustainable approach to mitigating greenhouse gas emissions and advancing renewable chemical production. Recently, copper-based metal–organic frameworks (Cu-MOFs) have been extensively researched for their potential in photocatalytic CO2 reduction, [...] Read more.
The photocatalytic reduction of CO2 into high-value chemicals utilizing solar energy represents a sustainable approach to mitigating greenhouse gas emissions and advancing renewable chemical production. Recently, copper-based metal–organic frameworks (Cu-MOFs) have been extensively researched for their potential in photocatalytic CO2 reduction, due to their high affinity for capturing CO2, the presence of unsaturated Cu sites, and their advantageous photochemical properties. In this review, we first provide an overview of Cu active sites in the secondary building units (SBUs) of MOFs, focusing on their selective adsorption of CO2 gas and analyzing the mechanisms of the multi-electron transfer processes involved in Cu-based photocatalytic reduction of CO2. Ultimately, this article outlines the existing obstacles and suggests potential avenues for future research. Full article
(This article belongs to the Special Issue Catalytic Carbon Emission Reduction and Conversion in the Environment)
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31 pages, 4081 KB  
Review
Sulfur Vacancy Engineering in Photocatalysts for CO2 Reduction: Mechanistic Insights and Material Design
by Bingqing Chang, Xin Liu, Xianghai Song, Yangyang Yang, Jisheng Zhang, Weiqiang Zhou and Pengwei Huo
Catalysts 2025, 15(8), 782; https://doi.org/10.3390/catal15080782 - 16 Aug 2025
Cited by 1 | Viewed by 1411
Abstract
Against the backdrop of increasing global warming, exploring sustainable pathways to mitigate the greenhouse effect has become a central issue for the ecological and energy future. Photocatalytic reduction of CO2 technology shows a broad application prospect due to its ability to directly [...] Read more.
Against the backdrop of increasing global warming, exploring sustainable pathways to mitigate the greenhouse effect has become a central issue for the ecological and energy future. Photocatalytic reduction of CO2 technology shows a broad application prospect due to its ability to directly convert CO2 into high-value-added hydrocarbon fuels and to use solar energy, a clean energy source, to drive the reaction. However, traditional semiconductor catalysts generally suffer from insufficient activity and poor product selectivity in the actual reaction, which cannot meet the requirements of practical applications. In recent years, sulfur vacancy, as an effective material modulation strategy, has demonstrated a remarkable role in enhancing photocatalytic performance. This paper reviews a series of research reports on sulfur vacancies in recent years, introduces the methods of preparing sulfur vacancies, and summarizes the commonly used characterization methods of sulfur vacancies. Finally, the mechanism of introducing sulfur vacancies to promote CO2 reduction is discussed, which improves the photocatalytic activity and selectivity by enhancing light absorption, facilitating carrier separation, improving CO2 adsorption and activation, and promoting the stability of reaction intermediates. This review aims to provide theoretical support for an in-depth understanding of the role of sulfur vacancies in photocatalytic systems and to provide a view on the future direction and potential challenges of sulfur vacancies. Full article
(This article belongs to the Special Issue Catalytic Carbon Emission Reduction and Conversion in the Environment)
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