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Catalysts publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue policies and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Enhanced Photocatalytic Activity over Ti, Zn, or Sn-Based Catalysts

edited by

Andres Castro-Beltrán

Clemente Guadalupe Alvarado-Beltrán

and Horacio Edgardo Garrafa-Gálvez

submission deadline 20 Dec 2025 | 1 articles | Viewed by 1234 | Submission Open

Keywords: green synthesis; metal oxide; nanoparticles; photocatalysis; photodegradation of pollutants; photosensitization; nanocomposites

(This special issue belongs to the Section Photocatalysis)

Fiber Catalysts for Efficient Energy and Environmental Catalysis

edited by

Gang Yu

and Yongshuai Xie

submission deadline 20 Dec 2025 | 1 articles | Viewed by 989 | Submission Open

Keywords: fiber-structured catalysts; structure-function integration; stability enhancement; environmental catalysis; carrier-active component synergy

(This special issue belongs to the Section Environmental Catalysis)

Photocatalytic Water Splitting and Pollutant Degradation: Recent Progress and Emerging Trends

edited by Zichao Lian

submission deadline 30 Dec 2025 | 1 articles | Viewed by 1253 | Submission Open

Keywords: photocatalysis; photocatalytic water splitting; environmental remediation; emerging contaminants; synergistic effect; synthesis of heterostructured photocatalysts; Fenton-like reactions; solar energy conversion; photoinduced carrier dynamics

(This special issue belongs to the Section Photocatalysis)

Catalysis Accelerating Energy and Environmental Sustainability

edited by Jinxing Chen

submission deadline 31 Dec 2025 | 22 articles | Viewed by 21464 | Submission Open

Keywords: energy conversion; environmental sustainability; electrocatalysis; photocatalysis; green chemistry; earth-abundant catalysts; catalyst durability and regeneration; low-emission processes

(This special issue belongs to the Section Environmental Catalysis)

Enzymatic and Chemoenzymatic Cascade Reactions

edited by

Marco Girhard

and Florian Tieves

submission deadline 31 Dec 2025 | 1 articles | Viewed by 7402 | Submission Open

Keywords: cascade reactions; chemo-enzymatic reactions; biocatalysis; biotransformation; multistep tandem reactions; one-pot synthesis; sustainable chemistry; reaction optimization; enzyme engineering; enzyme compatibility; organic synthesis; functionalization of small molecules

(This special issue belongs to the Section Biocatalysis)

Catalytic Carbon Emission Reduction and Conversion in the Environment

edited by Pengwei Huo, Xin Liu, Xianghai Song and Yangyang Yang

submission deadline 31 Dec 2025 | 3 articles | Viewed by 5364 | Submission Open

Keywords: carbon catalytic materials; carbon emission reduction; carbon conversion; carbon neutrality; waste upcycling; environmental protection

(This special issue belongs to the Section Environmental Catalysis)

Surface and Interface Engineering of Catalyst Nanostructures for Electrochemical Energy Conversion

edited by

Xiaofei Yang

and Huajie Huang

submission deadline 31 Dec 2025 | 3 articles | Viewed by 4170 | Submission Open

Keywords: electrocatalysts; low-dimension materials; heterostructures; controllable synthesis; water splitting; fuel cells; metal– air batteries

(This special issue belongs to the Section Electrocatalysis)

Green Heterogeneous Catalysis for CO₂ Reduction

edited by

Consuelo Alvarez-Galvan

Marisol Faraldos

and Belén Bachiller-Baeza

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3857 | Submission Open

Keywords: carbon dioxide; catalysis; reduction; chemicals; fuels; characterisation; structure– activity correlations

Nanocatalysts for the Degradation of Refractory Pollutants, 2nd Edition

edited by

Sheng Guo

Yuan Li

and

Abdul Naeem Khan

submission deadline 31 Dec 2025 | 3 articles | Viewed by 3626 | Submission Open

Keywords: environmental catalysis; advanced oxidation processes (AOPs); photocatalysis; nanomaterial; nanotechnology; water treatment; environmental remediation; catalyst characterization; VOC degradation; emerging contaminants; non-biodegradable organic contaminants

(This special issue belongs to the Section Environmental Catalysis)

Microporous and Mesoporous Materials for Catalytic Applications, 2nd Edition

edited by

Narendra Kumar

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2447 | Submission Open

Keywords: microporous materials; mesoporous materials; catalysts; synthesis; catalysis; characterization; chemicals; fuels

(This special issue belongs to the Section Catalytic Materials)

Catalytic Processes in Environmental Applications

edited by Yunfeng Ma, Peng Lu and Xiaole Weng

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2137 | Submission Open

Keywords: industrial exhaust treatment; catalytic oxidation; selective catalytic reduction; multi-pollutant synergistic catalysis; electro-driven/assisted catalysis; low-energy consumption catalysis; catalyst design assisted by AI; advanced characterization techniques

(This special issue belongs to the Section Environmental Catalysis)

Photocatalysts for CO₂ Reduction

edited by Huanhuan Liu and

Changfa Guo

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2008 | Submission Open

Keywords: photocatalysis; photocatalyst; composite material; heterojunction; CO2 reduction; selectivity in CO2 reduction; catalytic mechanism

(This special issue belongs to the Section Photocatalysis)

Catalysis for the Future

edited by

Keith Hohn

and

Evangelos Topakas

submission deadline 31 Dec 2025 | 1 articles | Viewed by 2001 | Submission Open

Keywords: catalytic materials; environmental catalysis; photocatalysis; electrocatalysis; biocatalysis; biomass catalysis; industrial catalysis; computational catalysis; other catalyzed processes

Advanced Semiconductor Photocatalysts

edited by

Amr Fouda

Mohammed F. Hamza

Ningchao Zheng

and Deqian Zeng

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1684 | Submission Open

Keywords: semiconductors; photocatalytic reaction; nanomaterials; heavy metals; radioactive ions; wastewater; dyes; inorganic and organic pollutants; biological activities and photocatalytic mechanisms

(This special issue belongs to the Section Photocatalysis)

Advanced Catalysts for Energy Conversion and Environmental Protection

edited by

Xiaohong Yang

submission deadline 31 Dec 2025 | 3 articles | Viewed by 1598 | Submission Open

Keywords: photoelectrocatalytic water splitting; photoelectrocatalytic CO2 reduction; hydrogen production/storage; energy conversion; environmental protection

(This special issue belongs to the Section Catalytic Materials)

Porous Catalytic Materials for Environmental Purification

edited by

Fukun Bi

submission deadline 31 Dec 2025 | 2 articles | Viewed by 1255 | Submission Open

Keywords: porous materials; catalytic oxidation; advanced oxidation; photocatalysis; VOCs degradation; CO2 catalytic conversion; NOx catalytic reduction; CO oxidation

(This special issue belongs to the Section Environmental Catalysis)

Nanostructured Catalysts for Emerging Electrochemical Technologies

edited by

Jia He

submission deadline 31 Dec 2025 | 1 articles | Viewed by 802 | Submission Open

Keywords: nanostructured catalysts; electrochemical technologies; energy conversion; energy storage; oxygen reduction reactions (ORRs); hydrogen evolution reactions (HERs); CO2 reduction reactions (CO2RRs); fuel cells; electrolyzers; metal-air batteries; lithium-ion batteries; sodium-ion batteries; environmental remediation; advanced characterization; sustainable synthesis

(This special issue belongs to the Section Electrocatalysis)

Catalysts: New Preparation Methods and Advanced Characterization

edited by

Werner Oberhauser

submission deadline 31 Dec 2025 | Viewed by 344 | Submission Open

Keywords: heterogenous catalysts; synthesis techniques; characterization techniques; structure– performance relationship

(This special issue belongs to the Section Catalytic Materials)

Catalytic Advances in Biomass Derivatives to Value-Added Products and Biomass Conversion for Green Chemistry

edited by

Xianxiang Liu

, Shuolin Zhou and

Xu Yang

submission deadline 31 Dec 2025 | Viewed by 344 | Submission Open

Keywords: biomass conversion; biomass upgrading; biomass derivatives; biomass-based chemicals; bioproducts; biofuels; green chemistry; catalytic upgrading; metal catalysts; non-precious metal catalysts; heterogeneous catalysis

(This special issue belongs to the Section Biomass Catalysis)

Photocatalysis and Electrocatalysis for Water Remediation

edited by

Peike Cao

and Haiguang Zhang

submission deadline 31 Dec 2025 | Viewed by 223 | Submission Open

Keywords: photocatalysis; electrocatalysis; water remediation; pollutant degradation; nanomaterials

(This special issue belongs to the Section Environmental Catalysis)

Advances in Catalytic Reaction for Wastewater Treatment

edited by

Meng Li

, Xu Jin and

Jin Tang

submission deadline 31 Dec 2025 | Viewed by 182 | Submission Open

Keywords: heavy metal removal; electrochemical oxidation/reduction; emerging organic pollutants; environmentally friendly catalysts; adsorption; bioelectrochemical technology; photocatalysis; membrane separation; wastewater treatment

(This special issue belongs to the Section Catalytic Materials)

Electrocatalysts for Nitrogen Reduction Reaction

edited by

Qiqi Mao

submission deadline 31 Dec 2025 | Viewed by 166 | Submission Open

Keywords: nitrogen reduction reaction; electrocatalysis; ammonia synthesis; nanomaterials; N2 activation; catalyst design

(This special issue belongs to the Section Electrocatalysis)

Fungal Enzymes in Focus: Novel Approaches in Production and Purification for Industrial and Environmental Challenges

edited by Romero M. P. Brandão-Costa, Galba M. Campos-Takaki, Ana Cristina L. Leite and Ana Lúcia F. Porto

submission deadline 31 Dec 2025 | Viewed by 141 | Submission Open

Keywords: fermentation; filamentous fungi; enzymes; biotechnology

(This special issue belongs to the Section Biocatalysis)

Functionalised Heterogeneous Catalysts for Sustainable Biomass Valorization

edited by

Meysam Madadi

and

Mahdy Elsayed

submission deadline 31 Dec 2025 | Viewed by 126 | Submission Open

Keywords: heterogeneous catalysis; biomass valorization; sustainable chemistry; lignocellulosic biomass; catalytic upgrading; green fuels; platform chemicals; catalyst design; process sustainability; technoeconomic analysis

(This special issue belongs to the Section Biomass Catalysis)

State-of-the-Art Catalysts for the Removal of Halogenated Pollutants

edited by Juan Zhou

submission deadline 31 Dec 2025 | Viewed by 126 | Submission Open

Keywords: halogenated pollutants; catalytic reduciton/oxidation; halogen transfer mechanism; high-value conversion; collaborative elimination; catalyst recycling

(This special issue belongs to the Section Environmental Catalysis)

Catalytic Transformation of Low-Carbon Molecules and Waste Resources

edited by

Guojie Zhang

submission deadline 31 Dec 2025 | Viewed by 110 | Submission Open

Keywords: catalytic transformation; low-carbon molecules; waste resources; sustainable catalysis; circular economy

(This special issue belongs to the Section Industrial Catalysis)

Catalysts for Polymer Synthesis and Selective Polymer Pyrolysis: Toward Circular and Sustainable Materials

edited by

Zhiqiang Fan

Amjad Ali

and Mudassir Hussain Tahir

submission deadline 31 Dec 2025 | Viewed by 93 | Submission Open

Keywords: catalysts for polymers; catalysts for pyrolysis; decarbonization; waste valorization; plastics

(This special issue belongs to the Section Industrial Catalysis)

Environmentally Friendly Catalysis for Green Future

edited by

Zuzeng Qin

submission deadline 10 Jan 2026 | 17 articles | Viewed by 22150 | Submission Open

Keywords: environmentally friendly catalysis; thermal catalysis; photocatalysis; electrocatalysis; CO2 reduction; degradation; environmental remediation; green chemistry

(This special issue belongs to the Section Environmental Catalysis)

Advanced Materials for Heterogeneous Catalysis: CO₂ Conversion and Energy Applications

edited by

Catia Cannilla

Mariarita Santoro

and

Mario Samperi

submission deadline 10 Jan 2026 | Viewed by 158 | Submission Open

Keywords: heterogenous catalysis; CO2 conversion; e-fuels; nanomaterials; electron microscopy

(This special issue belongs to the Section Catalytic Materials)

Advances in Catalytic Processes for Carbon Neutralization

edited by Xin Wang and Jingke Song

submission deadline 15 Jan 2026 | 2 articles | Viewed by 3393 | Submission Open

Keywords: photocatalysis; electrocatalysis; biological and enzymatic catalysis; coupled catalytic processes; advanced oxidation processes; homogeneous and heterogeneous catalysis; tandem catalysis

(This special issue belongs to the Section Catalytic Materials)

Innovations in C1 Chemistry Catalysis

edited by Fei Chen and Meng Zhang

submission deadline 15 Jan 2026 | Viewed by 224 | Submission Open

Keywords: C1 chemistry; catalysis; catalyst design; mechanism; in situ; operando characterization

(This special issue belongs to the Section Industrial Catalysis)

Efficient Catalysts in Carbon Dioxide (CO₂) Conversion

edited by Hao Wang

submission deadline 15 Jan 2026 | Viewed by 210 | Submission Open

Keywords: CO2 conversion; heterogeneous catalysis; catalyst design; electrocatalysis; photocatalysis; metal– organic frameworks (MOFs); reaction mechanisms; carbon capture and utilization

(This special issue belongs to the Section Catalytic Materials)

Catalytic Soot Oxidation

edited by

Yuechang Wei

Jing Xiong

and Yuanfeng Li

submission deadline 15 Jan 2026 | Viewed by 113 | Submission Open

Keywords: heterogeneous catalysis; deep oxidation; 3DOM; contact efficiency; SMSI; reaction mechanism

Advanced Oxidation Catalysis and Sustainable Technologies for Water Purification

edited by

Huanxuan Li

submission deadline 20 Jan 2026 | 3 articles | Viewed by 4209 | Submission Open

Keywords: advanced oxidation process; water purification; wastewater treatment; organic pollutants; peroxymonosulfate; catalysts; DFT calculations; degradation mechanisms; persulfate; hydrogen peroxide

(This special issue belongs to the Section Catalysis for Sustainable Energy)

Synthesis of Metallic Nanoparticles for Biocatalysis

edited by

Monica Florescu

and

Melinda David

submission deadline 30 Jan 2026 | Viewed by 1193 | Submission Open

Keywords: metallic nanoparticles; biocatalysis; green synthesis; nanobiotechnology; enzyme-nanoparticle; hybrid system

(This special issue belongs to the Section Biocatalysis)

New Development of Catalysts for Organometallic Chemistry

edited by

Mariusz Majchrzak

submission deadline 30 Jan 2026 | Viewed by 224 | Submission Open

Keywords: homogeneous catalysis; nanocatalysts; mechanism and kinetics; ceramic materials; polymeric hybrid materials; surface studies of catalytic materials; catalytic systems in the synthesis of hybrid materials; characterization of catalytic materials; hybrid catalysts-surface chemistry and properties

Catalysts, Photocatalysts, and Electrocatalysts for CO₂ Utilization and H₂ Production

edited by

Chang-Tang Chang

submission deadline 30 Jan 2026 | Viewed by 139 | Submission Open

Keywords: catalysts; CO2 Conversion; H2 Production; net-zero emission; circular economy

Enzyme and Biocatalysis Application

edited by

Chia-Hung Kuo

Chwen-Jen Shieh

and

Yung-Chuan Liu

submission deadline 31 Jan 2026 | 12 articles | Viewed by 20186 | Submission Open

Keywords: enzyme production; enzyme purification; biocatalysis; optimization; lipase; cellulase; protease; amylase; biofuels; enzymatic-catalyzed synthesis; enzyme immobilization; biomass utilization; environmental protection; glucosidase; biotransformation; enzymatic kinetics; ultrasound-assisted enzymatic reaction; bio-reactor; enzymatic-assisted extraction; experimental design; response surface methodology (RSM)

(This special issue belongs to the Section Biocatalysis)

Sustainable Catalysis for Green Chemistry and Energy Transition, 2nd Edition

edited by Wajid Zaman and Muhammad Saeed Akhtar

submission deadline 31 Jan 2026 | 10 articles | Viewed by 10825 | Submission Open

Keywords: sustainable catalysis; green chemistry; energy transition; heterogeneous catalysis; renewable energy; hydrogen evolution; CO₂ conversion; biofuels; photocatalysis; electrocatalysis; biocatalysts; biomass valorization; transition metal catalysis; organometallic catalysis; circular economy; catalytic recycling; computational catalysis; machine learning; catalyst design; low-carbon future

(This special issue belongs to the Section Environmental Catalysis)

Single-Atom Catalysts: Current Trends, Challenges, and Prospects

edited by Ruonan Guo

submission deadline 31 Jan 2026 | 4 articles | Viewed by 4639 | Submission Open

Keywords: single-atom catalyst; atomically dispersed catalyst; heterogeneous catalysis; energy conversion; thermal catalysis; electrocatalysis; photocatalysis; metal– support interactions

(This special issue belongs to the Section Catalytic Materials)

Catalytic Activity of Two-Dimensional Materials and Their Heterostructures

edited by

Sake Wang

Nguyen Tuan Hung

and

Minglei Sun

submission deadline 31 Jan 2026 | 3 articles | Viewed by 4038 | Submission Open

Keywords: catalytic application; two-dimensional materials; heterostructures; charge transfer; electrical conductivity; hydrogen evolution reaction; oxygen reduction reactions

(This special issue belongs to the Section Catalytic Materials)

Waste-to-Resources Through Catalysis in Green and Sustainable Way

edited by

Yu-Cai He

submission deadline 31 Jan 2026 | 3 articles | Viewed by 3906 | Submission Open

Keywords: solid waste catalytic conversion; biofuel production; development of homogeneous/heterogeneous catalysts; chemo-bio synergistic catalysis; synthesis of value-added chemicals; sustainable manufacturing technologies; targeted depolymerization of plastics/biomass; environmentally benign catalytic systems

(This special issue belongs to the Section Biomass Catalysis)

Multifunctional Metal–Organic Framework Materials as Catalysts

edited by Dongping Xue and

Jing Wu

submission deadline 31 Jan 2026 | 2 articles | Viewed by 3619 | Submission Open

Keywords: metal– organic frameworks (MOFs); MOF-derived carbon-based materials; catalysis; electrocatalysis; photocatalysis; heterogeneous catalysis; energy storage and conversion

(This special issue belongs to the Section Catalytic Materials)

Sustainable Enzymatic Processes for Fine Chemicals and Biodiesel

edited by

Luigi Di Bitonto

and

Ahmad Mustafa

submission deadline 31 Jan 2026 | 2 articles | Viewed by 3601 | Submission Open

Keywords: enzymatic catalysis; biodiesel; bio-based compounds; fine chemicals; green chemistry

(This special issue belongs to the Section Biocatalysis)

Carbon-Based Materials Catalysts for Energy and Hydrogen Productions

edited by Kai Deng

submission deadline 31 Jan 2026 | 2 articles | Viewed by 2831 | Submission Open

Keywords: carbon-based catalysts; electrochemical water splitting; photocatalytic water splitting; sustainable catalysis; renewable energy conversion; CO2 utilization; heteroatom doping; biomass conversion

(This special issue belongs to the Section Catalytic Materials)

Innovative Catalytic Approaches in Polymerization

edited by

Kotohiro Nomura

submission deadline 31 Jan 2026 | 3 articles | Viewed by 2430 | Submission Open

Keywords: olefin polymerization; ring-opening polymerization; metathesis polymerization/depolymerization; organometallics; homogeneous catalysts; heterogeneous catalysts; chemical recycling; upcycling

(This special issue belongs to the Section Catalysis in Organic and Polymer Chemistry)

Advanced Catalysts for Biomass Pyrolysis

edited by

Faisal Abnisa

submission deadline 31 Jan 2026 | 1 articles | Viewed by 2389 | Submission Open

Keywords: biomass catalytic pyrolysis; high-performance catalysts; catalyst regeneration; biomass conversion; biomass-to-fuels; catalytic thermal conversion; bio-oil upgrading; renewable fuels; reaction mechanisms

(This special issue belongs to the Section Biomass Catalysis)

Advances in Environmental Catalysis for a Sustainable Future

edited by

Xianhua Liu

submission deadline 31 Jan 2026 | 2 articles | Viewed by 2323 | Submission Open

Keywords: environmental catalysis; sustainable catalysis; green chemistry; pollution control; nanocatalysis; photocatalysis; electrocatalysis; renewable energy

(This special issue belongs to the Section Environmental Catalysis)

Photo(electro)catalysts Green Chemistry, Environmental Pollution, and Energy Applications

edited by

Jinchen Fan

and Hong Li

submission deadline 31 Jan 2026 | 1 articles | Viewed by 1793 | Submission Open

Keywords: green chemistry; electrocatalysts; photocatalysts; surface and interfacial chemistry; theoretical studies in situ/operando characterizations; energy devices

(This special issue belongs to the Section Photocatalysis)

Environmental Catalysis and Nanomaterials for Water Pollution Control

edited by

Tielong Li

and Wei Wang

submission deadline 31 Jan 2026 | 2 articles | Viewed by 1520 | Submission Open

Keywords: environmental catalysis; nanomaterials; water pollution; wastewater treatment; environmental remediation; organic pollutants; heavy metals; emerging contaminants; catalytic degradation; sustainable technology

(This special issue belongs to the Section Environmental Catalysis)

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