Special Issue "Metal Oxides /Metal Catalysts"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: 20 November 2023 | Viewed by 471

Special Issue Editors

Dr. Wanlin Fu
E-Mail Website
Guest Editor
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
Interests: metal oxide; oxide nanofibers; electrospinning; nanocatalyst
Research Center of Secondary Resources and Environment, School of Chemical Engineering and Materials, Changzhou Institute of Technology, Changzhou 213032, China
Interests: heterogeneous catalysis and reaction engineering; biomass hydroconversion; inorganic nonmetallic catalysts; directed design and controllable synthesis of catalytic materials
State Key Laboratory of Fine Chemicals, PSU-DUT Joint Center for Energy Research, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
Interests: metal oxide; CO2 hydrogenation; catalysts

Special Issue Information

Dear Colleagues,

Metals, oxides and their composite nanomaterials are the focus and material basis of nanocatalysts, which have garnered the widespread attention of researchers in chemistry, physics, materials, biology and interdisciplinary fields all over the world. In recent years, with the development of nanosynthesis, a large number of zero-dimensional (quantum dots, nanocrystals, nanospheres, etc.), one-dimensional (nanowires, nanoribbons, nanorods, nanofibers, etc.), two-dimensional (nanosheets, nanomembranes, etc.), and three-dimensional (aerogel, hydrogel, etc.) metal-oxide nanomaterials have emerged. Moreover, a variety of fine surface structures and/or secondary structures have been constructed on these novel nanomaterials, further endowed with exciting potential applications as nanocatalysts. However, the difficulty in continuous and massive production is still an important bottleneck restricting the lab-to-fab transition of these carefully designed metal-oxide nanomaterials. In addition, the complexity and dynamics of the real reaction conditions bring great challenges to the in-depth study and accurate prediction of the structure–activity relationship of nanocatalysts. New research paradigms such as in situ imaging and spectroscopy, theoretical computation and simulation, big data statistics, and high-throughput screening may help shorten iteration cycles and facilitate customized development of nanomaterials. These are currently open questions, as well as hot and timely topics. The present Special Issue on “Metal Oxides/Metal Catalysts” may become a status report summarizing the progress achieved in the last five years.

Dr. Wanlin Fu
Dr. Mei Xiang
Dr. Fanshu Ding
Guest Editors

Manuscript Submission Information

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  • metal oxide
  • nanocatalyst
  • synthesis of novel metal-oxide nanomaterials
  • novel structured metal oxides
  • mass-production of metal-oxide nanocatalysts
  • catalytic properties
  • metal/metal oxide interaction
  • interfacial diffusion
  • active sites

Published Papers (1 paper)

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Efficient Degradation of Antibiotics by Activating Peroxymonosulfate (PMS) with Biochar (BC)-Modified FeOx under UVA-LED Irradiation
Crystals 2023, 13(8), 1248; https://doi.org/10.3390/cryst13081248 - 12 Aug 2023
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There are obvious drawbacks for the traditional treatment methods of antibiotics, such as low efficiency and high cost. In this paper, FeOx catalysts, modified with the biochar (BC) of maple leaf (FeOx@BC), were successfully prepared by the hydrothermal method. Then, [...] Read more.
There are obvious drawbacks for the traditional treatment methods of antibiotics, such as low efficiency and high cost. In this paper, FeOx catalysts, modified with the biochar (BC) of maple leaf (FeOx@BC), were successfully prepared by the hydrothermal method. Then, the FeOx@BC was investigated to activate peroxymonosulfate (PMS) under UVA-LED irradiation for the degradation of tetracycline hydrochloride (TC). Subsequently, the changes in valence states before and after the reaction of ions were investigated by XPS spectra, and the process mechanism was presented. The results demonstrated that the TC degradation efficiency reached 96% in the FeOx@BC + PMS + UVA-LED system within 40 min, which was higher than 57% efficiency for the α-Fe2O3 + PMS + UVA-LED system. The electron transfer was promoted in the FeOx@BC + PMS + UVA-LED system due to the doping of BC. The Fe(III) was transformed into Fe(II) under UVA-LED irradiation, and Fe(II) activated continuously PMS to generate active oxygen species. Furthermore, it had excellent reusable performance and structural stability, and the degradation efficiency was still as high as 80% after five cycles. It was proved that SO4, OH, O2 and h+ participated in the degradation process of TC to different degrees by quenching experiments and EPR tests. In summary, FeOx@BC is an inexpensive, reusable and efficient catalyst. Full article
(This article belongs to the Special Issue Metal Oxides /Metal Catalysts)
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