Green Chemistry and Catalysis, 2nd Edition

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Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
Interests: clay science; zeolites; nanocomposites; liquid-phase catalysis; green chemistry; environmental catalysis
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Guest Editor
Department of Chemistry, College of Science, University of Jeddah, P.O. Box 80329, Jeddah 21589, Saudi Arabia
Interests: green chemistry; sonochemistry; heterogeneous catalysis and homogeneous catalysis; clean organic synthesis
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Guest Editor
Department of Therapeutic Chemistry, Pharmaceutical and Drug Industries Research Division, National Research Center, El Buhouth Street, Dokki, Cairo 12622, Egypt
Interests: therapeutic chemistry; pharmaceutical and drug industries
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Special Issue Information

Dear Colleagues,

In light of the significant success of our prior Special Issue, “Green Chemistry and Catalysis”, we are pleased to announce its continuation. This new Special Issue underscores the pivotal role of catalysis in promoting sustainable chemical practices, an essential endeavor for our global community.

This Collection aims to highlight innovative research that responds to the pressing demand for environmentally sustainable chemical synthesis. We solicit submissions that illustrate how novel catalytic approaches might diminish waste, conserve energy, and harness renewable resources, thereby lessening the environmental impact of chemical processes.

We invite original research and review articles that investigate the following overarching themes, among others:

Sustainable Synthesis: Innovative catalytic pathways for organic transformations that emphasize atom economy, environmentally friendly solvents, and renewable feedstocks.

Next-Generation Catalysts: The design, development, and mechanistic comprehension of high-performance catalysts—be they homogeneous, heterogeneous, nano-, or bio-catalysts—that exhibit efficiency, selectivity, and environmental sustainability.

Energy-Driven Processes: Innovations in photocatalysis and electrocatalysis that utilize light and electrical energy to facilitate chemical reactions under mild circumstances.

Green Engineering: The utilization of alternate energy sources (e.g., microwaves, ultrasound, mechanochemistry) alongside catalysis to improve reaction efficiency and sustainability.

Environmental and Energy Applications: The application of catalytic technology for pollution prevention, remediation, and sustainable energy transformation.

This Special Issue will serve as a forum for researchers in chemistry and engineering to exchange insights and stimulate further innovation in the pursuit of a more sustainable chemical future. 

Prof. Dr. Mohamed Mokhtar M. Mostafa
Prof. Dr. Tamer S. Saleh
Prof. Dr. Nesreen S. Ahmed
Guest Editors

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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

  • green chemistry
  • homogeneous catalysts
  • heterogeneous catalysis
  • enzyme catalysis
  • sustainable synthesis
  • photocatalysis
  • electrocatalysis
  • nanocatalysts

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Related Special Issue

Published Papers (1 paper)

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Research

20 pages, 4347 KB  
Article
Synergistic Stabilization of Horseradish Peroxidase by Green-Synthesized Silver-Decorated Magnetite Nanoparticles: Toward Sustainable Enzyme Technology
by Laila S. Alqarni, Yaaser Q. Almulaiky, Elham N. Bifari and Reda M. El-Shishtawy
Catalysts 2025, 15(12), 1098; https://doi.org/10.3390/catal15121098 - 21 Nov 2025
Viewed by 652
Abstract
In this study, silver-decorated magnetite nanoparticles (Ag@Fe3O4) were synthesized via a green method using Brachychiton populneus leaf extract and employed as an efficient support matrix for immobilization of horseradish peroxidase (HRP). The biosynthesized nanocomposite exhibited magnetic properties that facilitated [...] Read more.
In this study, silver-decorated magnetite nanoparticles (Ag@Fe3O4) were synthesized via a green method using Brachychiton populneus leaf extract and employed as an efficient support matrix for immobilization of horseradish peroxidase (HRP). The biosynthesized nanocomposite exhibited magnetic properties that facilitated easy separation and reuse, while the silver loading imparted enhanced stability and potential antimicrobial activity. Comprehensive physicochemical characterizations, including XRD, FTIR, FESEM, EDX, BET, and VSM, confirmed the successful formation of Ag@Fe3O4 and effective enzyme loading. The immobilization yield of HRP on Ag@Fe3O4 reached 93%, and the immobilized enzyme showed improved tolerance toward temperature and pH variations, with an optimal pH of 7.5 and optimal temperature of 60 °C, compared to 7.0 and 50 °C for the free enzyme. Kinetic studies revealed a moderate increase in Km but maintained or slightly increased Vmax, indicating preserved catalytic efficiency. The immobilized enzyme demonstrated excellent reusability over 15 cycles (66% residual activity) and long-term storage stability (81% activity after 60 days at 4 °C). These enhancements are attributed to the protective microenvironment provided by the Ag@Fe3O4 matrix, which mitigates denaturation and leaching. This work highlights the potential of Ag@Fe3O4 as a sustainable and reusable platform for enzyme immobilization in biocatalytic applications, particularly in environmental remediation and industrial bioprocessing. Full article
(This article belongs to the Special Issue Green Chemistry and Catalysis, 2nd Edition)
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