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Advances in Oxide-Based Materials for (Photo)Catalysis

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Photochemistry".

Deadline for manuscript submissions: 30 June 2025 | Viewed by 823

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Guest Editor
Chemistry Faculty, CCIQS, Mexico State Autonomous University, Toluca 50200, Mexico
Interests: catalyst; thin films; catalyst characterization; heterogeneous catalysis; ceramics; material characterization; nanomaterials; adsorption; catalyst synthesis; porous materials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to invite your contributions highlighting the recent developments or innovations in the field of oxide-based catalytic materials.

This Special Issue aims to showcase the recent developments or innovations in the field of oxide-based catalytic materials. Oxides, known for their unique electronic and structural properties, have emerged as clue components in catalytic materials, with a focus on environmental and energy applications.

In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following: Oxides as clue components in catalytic materials, focused on environmental and energy applications; cutting-edge research on novel synthesis methods, characterization techniques, and the integration of oxide materials in photocatalytic and traditional catalytic systems; the design of heterostructures; the role of defects and doping in enhancing catalytic performance; and the exploration of novel oxide compositions.

By bridging theoretical insights with practical applications, this Issue seeks to advance the understanding of oxide-based materials and their transformative potential in sustainable catalysis, paving the way for future innovations in this area of heterogenous photocatalysis and materials science.

Dr. Dora Alicia Solís-Casados
Guest Editor

Manuscript Submission Information

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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. Molecules is an international peer-reviewed open access semimonthly 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 2700 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

  • oxide-based materials
  • catalytic materials
  • synthesis methods
  • characterization techniques
  • photocatalysis
  • heterostructures
  • sustainable photocatalysis

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Published Papers (1 paper)

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Research

21 pages, 6307 KiB  
Article
Visible Light-Driven Direct Z-Scheme Ho2SmSbO7/YbDyBiNbO7 Heterojunction Photocatalyst for Efficient Degradation of Fenitrothion
by Liang Hao and Jingfei Luan
Molecules 2024, 29(24), 5930; https://doi.org/10.3390/molecules29245930 - 16 Dec 2024
Viewed by 570
Abstract
A highly versatile Z-scheme heterostructure, Ho2SmSbO7/YbDyBiNbO7 (HYO), was synthesized using an ultrasonic-assisted solvent thermal method. The HYO heterojunction, composed of dual A2B2O7 compounds, exhibits superior separation of photogenerated carriers due to its efficient [...] Read more.
A highly versatile Z-scheme heterostructure, Ho2SmSbO7/YbDyBiNbO7 (HYO), was synthesized using an ultrasonic-assisted solvent thermal method. The HYO heterojunction, composed of dual A2B2O7 compounds, exhibits superior separation of photogenerated carriers due to its efficient Z-scheme mechanism. The synergistic properties of Ho2SmSbO7 and YbDyBiNbO7, particularly the excellent visible light absorption, enable HYO to achieve exceptional photocatalytic performance in the degradation of fenitrothion (FNT). Specifically, HYO demonstrated an outstanding removal efficiency of 99.83% for FNT and a mineralization rate of 98.77% for total organic carbon (TOC) during the degradation process. Comparative analyses revealed that HYO significantly outperformed other photocatalysts, including Ho2SmSbO7, YbDyBiNbO7, and N-doped TiO2, achieving removal rates that were 1.10, 1.20, and 2.97 times higher for FNT, respectively. For TOC mineralization, HYO exhibited even greater enhancements, with rates 1.13, 1.26, and 3.37 times higher than those of the aforementioned catalysts. Additionally, the stability and durability of HYO were systematically evaluated, confirming its potential applicability in practical scenarios. Trapping experiments and electron paramagnetic resonance analyses were conducted to identify the active species generated by HYO, specifically hydroxyl radicals (•OH), superoxide anions (•O2), and holes (h+). This facilitated a comprehensive understanding of the degradation mechanisms and pathways associated with FNT. In conclusion, this study represents a substantial contribution to the advancement of efficient Z-scheme heterostructure and offers critical insights for the development of sustainable remediation approaches aimed at mitigating FNT contamination. Full article
(This article belongs to the Special Issue Advances in Oxide-Based Materials for (Photo)Catalysis)
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