Energy-Efficient Catalytic Oxidation

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

Deadline for manuscript submissions: closed (10 January 2022) | Viewed by 6386

Special Issue Editor


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Guest Editor
1. Faculdade de Engenharia, Universidade Lusófona, Campo Grande 376, 1749-024 Lisboa, Portugal
2. Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Interests: homogeneous catalysis; heterogeneous catalysis; metal complexes; organic synthesis; oxidation; mechanism
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Special Issue Information

Dear Colleagues,

Design for energy efficiency is one of the principles of green chemistry. According to this principle, energy requirements should be minimized and should be considered for their environmental and economic impacts.

Catalytic oxidation reactions using energy-efficient techniques is a growing research area. To fulfil the green chemistry criteria and to develop sustainable catalytic oxidation processes, it is highly important to use energy-efficient methodologies, e.g., microwave-assisted irradiation, thermoplasmonic-induced reactions, ultrasound, and photo-induced reactions. Catalytic reactions under homogeneous, heterogenous, or supported heterogenous conditions can be explored for this purpose. Kinetic studies, theoretical calculation, and illustrations of mechanisms can also be a part of this topic.

The main goal of this Special Issue is to combine a variety of new and original research results on energy-efficient catalytic oxidation methods.

New and original research studies and review articles on this topic are welcome.

Dr. Manas Sutradhar
Guest Editor

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Keywords

  • homogeneous catalysis
  • heterogeneous catalysis
  • microwave irradiation
  • thermoplasmonic-induced
  • ultrasound
  • photo-induced
  • organic synthesis
  • oxidation
  • mechanism

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Published Papers (2 papers)

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Research

14 pages, 3696 KiB  
Article
C-Heterogenized Re Nanoparticles as Effective Catalysts for the Reduction of 4-Nitrophenol and Oxidation of 1-Phenylethanol
by Ana P. C. Ribeiro, Beatriz M. Santos, Rute F. C. Faustino, Armando J. L. Pombeiro and Luísa M. D. R. S. Martins
Catalysts 2022, 12(3), 285; https://doi.org/10.3390/catal12030285 - 2 Mar 2022
Cited by 3 | Viewed by 2866
Abstract
Rhenium nanoparticles (Re NPs) supported on Norit (activated carbon—C) and graphene (G) were prepared by a solvothermal method under microwave irradiation (MW). The synthesised heterogeneous catalysts were characterised and tested as reduction and oxidation catalysts, highlighting their dual catalytic behaviour. In the first [...] Read more.
Rhenium nanoparticles (Re NPs) supported on Norit (activated carbon—C) and graphene (G) were prepared by a solvothermal method under microwave irradiation (MW). The synthesised heterogeneous catalysts were characterised and tested as reduction and oxidation catalysts, highlighting their dual catalytic behaviour. In the first case, they were used, for the first time, to reduce 4-nitrophenol, in aqueous medium, under MW irradiation. Re catalysts were easily recovered by centrifugation and recycled up to six times without significant activity loss. However, the same Re catalysts in MW-assisted oxidation of 1-phenylethanol with no added solvent experienced a significant loss of activity when recycled. The higher activity of the rhenium nanoparticles supported on graphene (Re/G) catalyst in both reactions was assigned to the higher dispersion and smaller particle size of Re NPs when graphene is the support. Full article
(This article belongs to the Special Issue Energy-Efficient Catalytic Oxidation)
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21 pages, 9016 KiB  
Article
Iron-Zinc Co-Doped Titania Nanocomposite: Photocatalytic and Photobiocidal Potential in Combination with Molecular Docking Studies
by Nadia Riaz, Debra Adelina Chia Siew Fen, Muhammad Saqib Khan, Sadia Naz, Rizwana Sarwar, Umar Farooq, Mohamad Azmi Bustam, Gaber El-Saber Batiha, Islam H. El Azab, Jalal Uddin and Ajmal Khan
Catalysts 2021, 11(9), 1112; https://doi.org/10.3390/catal11091112 - 16 Sep 2021
Cited by 10 | Viewed by 2727
Abstract
In the current research study, iron-zinc co-doped TiO2 was reported as an energy efficient material for the degradation of DIPA and inactivation of E. coli and S. aureus under visible light irradiation. In addition, molecular docking simulation was performed to provide further [...] Read more.
In the current research study, iron-zinc co-doped TiO2 was reported as an energy efficient material for the degradation of DIPA and inactivation of E. coli and S. aureus under visible light irradiation. In addition, molecular docking simulation was performed to provide further insight into possible targets for inhibiting bacterial development. The synthesized nanocomposites were screened and optimized for different synthesis and reaction parameters. The physicochemical properties of the synthesized nanocomposites were evaluated through different characterization techniques. The wet impregnation (WI) approach was among the most successful methods for the synthesis of Fe-Zn-TiO2 nanocomposite (NC) utilizing anatase titanium. Moreover, 66.5% (60 min reaction time) and 100% (190 min reaction time) chemical oxygen demand (COD) removal was obtained through optimized NC, i.e., 0.1Fe-0.4Zn metal composition and 300 °C calcination temperature. The energy consumption for the best NC was 457.40 KW h m−3. Moreover, 0.1Fe-0.4Zn-TiO2-300 was more efficient against S. aureus compared to E. coli with 100% reduction in 90 min of visible light irradiations. Furthermore, 0.1Fe-0.4Zn-TiO2-300 NC showed that the binding score for best docked conformation was −5.72 kcal mol−1 against β-lactamase from E. coli and −3.46 kcal mol−1 from S. aureus. The studies suggested the Fe-Zn in combination with TiO2 to be a possible inhibitor of β-lactamase that can be further tested in enzyme inhibition studies. Full article
(This article belongs to the Special Issue Energy-Efficient Catalytic Oxidation)
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