Advances in Microwave-Assisted Catalysis: From Catalytic Materials to Catalytic Reactions

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: 30 September 2025 | Viewed by 625

Special Issue Editors


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Guest Editor
Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel lí Domingo 1, 43007 Tarragona, Spain
Interests: heterogeneous catalysis; green chemistry; microwaves; ultrasounds; biomass valorization; glycerol revalorization; catalysts preparation and characterization
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E-Mail Website
Guest Editor
Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, 43007 Tarragona, Spain
Interests: heterogeneous catalysis; green chemistry; microwaves; ultrasounds; biomass valorization; glycerol revalorization; catalysts preparation and characterization

Special Issue Information

Dear Colleagues,

Microwave irradiation has garnered significant interest in recent years as an efficient alternative to traditional heating methods in chemical synthesis and catalysis. This approach offers several key advantages, including the ability to accelerate reactions, operate under milder conditions, and reduce energy consumption. Additionally, it provides more homogeneous heating of materials, which enhances efficiency and control over catalytic processes. However, it also presents challenges, such as the formation of hot spots and issues related to the use of metallic catalysts in microwave systems.

This Special Issue aims to compile recent and original research exploring the application of microwaves in catalytic reactions and in the improvement of the catalytic materials synthesis. We invite submissions addressing a wide range of catalytic transformations, including acid, base, or metal-catalyzed reactions, oxidation processes, biomass conversion, gas processing, and activation of hydrogenation and dehydrogenation reactions. There is also interest in advancing the use of microwaves in environmental catalysis, synthesis of catalytic nanomaterials, and for solvent-free reactions. Additionally, contributions that compare this technique to conventional methods, or that focus on the development of microwave reactors and the industrial scaling of these processes, are welcome.

Prof. Dr. Yolanda Cesteros
Dr. Judith Granados-Reyes
Guest Editors

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Keywords

  • microwave-assisted catalytic reactions
  • microwave-assisted synthesis of catalytic materials
  • biomass valorization via microwaves
  • microwave-assisted acid/base-catalysed reactions
  • microwave-assisted (de)-hydrogenation and oxidation reactions
  • microwaves in non-polar reaction media
  • microwave reactors and equipment
  • scale-up microwave-assisted catalytic reactions

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Published Papers (1 paper)

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Research

17 pages, 3269 KiB  
Article
Microwave-Assisted Degradation of Azo Dyes Using NiO Catalysts
by Celinia de Carvalho Chan, Lamiaa F. Alsalem, Mshaal Almalki, Irina Bozhinovska, James S. Hayward, Stephen S. N. Williams and Jonathan K. Bartley
Catalysts 2025, 15(8), 702; https://doi.org/10.3390/catal15080702 - 24 Jul 2025
Viewed by 364
Abstract
Catalysts are ubiquitous in manufacturing industries and gas phase pollutant abatement but are not widely used in wastewater treatment, as high temperatures and concentrated waste streams are needed to achieve the reaction degradation rates required. Heating water is energy intensive, and alternative, low [...] Read more.
Catalysts are ubiquitous in manufacturing industries and gas phase pollutant abatement but are not widely used in wastewater treatment, as high temperatures and concentrated waste streams are needed to achieve the reaction degradation rates required. Heating water is energy intensive, and alternative, low temperature solutions have been investigated, collectively known as advanced oxidation processes. However, many of these advanced oxidation processes use expensive oxidants such as perchlorate, hydroxy radicals or ozone to react with contaminants, and therefore have high running costs. This study has investigated microwave catalysis as a low-energy, low-cost technology for water treatment using NiO catalysts that can be heated in the microwave field to drive the decomposition of azo-dye contaminants. Using this methodology for the microwave-assisted degradation of two azo dyes (azorubine and methyl orange), conversions of >95% were achieved in only 10 s with 100 W microwave power. Full article
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