Topic Editors

Department of Chemistry, Tsinghua University, Beijing, China
Dr. Sami Rtimi
Global Institute for Water, Environment and Health (GIWEH), 1210 Geneva, Switzerland

Supported Photocatalysts: Nano-Architecture vs. Reactivity

Abstract submission deadline
31 March 2026
Manuscript submission deadline
31 May 2026
Viewed by
672

Topic Information

Dear Colleagues,

Photocatalysis stands at the forefront of sustainable chemistry, enabling green pathways for water purification, air remediation, and solar fuel production. Yet, the translation of photocatalytic materials into scalable technologies hinges on a delicate balance between architectural design and functional performance. This Topic, "Supported Photocatalysts: Nano-Architecture vs. Reactivity," invites high-impact contributions that explore how the structural configuration of supported systems governs their reactivity, selectivity, and long-term stability.

We particularly welcome studies that address the interplay between catalyst–support interactions, charge transfer dynamics, and light-harvesting efficiency across diverse platforms, including thin films, core–shell heterostructures, hierarchical porous scaffolds, and 3D-printed supports. Emphasis is placed on comparative investigations that dissect how nanoscale architecture (e.g., interfacial engineering, spatial orientation, anchoring strategies) correlates with catalytic behavior under simulated or real-world conditions.

Submissions should present original experimental or computational insights, with strong mechanistic grounding, advanced characterization, or novel fabrication strategies. Interdisciplinary perspectives spanning materials science, surface chemistry, and reactor engineering are especially encouraged.

This issue aims to bridge fundamental understanding with application-driven design, ultimately guiding the next generation of high-performance, durable, and economically viable supported photocatalysts.

Prof. Dr. Yongfa Zhu
Dr. Sami Rtimi
Topic Editors

Keywords

  • photocatalysts
  • light harvesting
  • thin films
  • core–shell heterostructures
  • hierarchical porous scaffolds
  • 3D-printed supports

Participating Journals

Journal Name Impact Factor CiteScore Launched Year First Decision (median) APC
Applied Nano
applnano
- 4.6 2020 15.7 Days CHF 1000 Submit
Catalysts
catalysts
4.0 7.6 2011 15.9 Days CHF 2200 Submit
Materials
materials
3.2 6.4 2008 15.5 Days CHF 2600 Submit
Nanomaterials
nanomaterials
4.3 9.2 2010 14 Days CHF 2400 Submit
Molecules
molecules
4.6 8.6 1996 15.1 Days CHF 2700 Submit
Photochem
photochem
2.3 5.0 2021 19.2 Days CHF 1200 Submit
Reactions
reactions
2.2 3.3 2020 18.8 Days CHF 1200 Submit

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Published Papers (1 paper)

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11 pages, 1686 KB  
Article
Low-Temperature Hot-Water Treatment as a Green Strategy to Enhance the Self-Cleaning and Antibacterial Performance of Sputtered TiO2 Thin Films
by Manel Boukazzoula, Djamila Maghnia, Frank Neumann and Oualid Baghriche
Photochem 2026, 6(1), 4; https://doi.org/10.3390/photochem6010004 - 6 Jan 2026
Viewed by 261
Abstract
Titanium dioxide (TiO2) thin films were deposited by DC magnetron sputtering and subsequently treated in hot water at 50, 70, and 95 °C for 72 h to investigate the influence of low temperature on their structural optical and functional properties. XRD [...] Read more.
Titanium dioxide (TiO2) thin films were deposited by DC magnetron sputtering and subsequently treated in hot water at 50, 70, and 95 °C for 72 h to investigate the influence of low temperature on their structural optical and functional properties. XRD analysis revealed a progressive transformation from amorphous to anatase phase with increasing treatment temperature, accompanied by an increase in crystallite size from 5.2 to 15.1 nm. FT-IR spectroscopy confirmed enhanced surface hydroxylation and contact angle measurements showed a decrease from 77.4° to 19.7°, indicating a significant improvement in superior wettability. The transmittance spectroscopy revealed a slight narrowing of the optical band gap from 3.34 to 3.21 eV, consistent with improved visible-light absorption. Photocatalytic tests using the Resazurin indicator demonstrated that the film treated at 95 °C exhibited the highest activity, achieving a bleaching time of 245 s three times faster than treated at 50 °C and twice as fast as treated at 70 °C. Under low-intensity solar irradiation, the same sample achieved complete E. coli inactivation within 90 min. These improvements are attributed to increased crystallinity, surface hydroxyl density, and enhanced ROS generation. Overall, this study demonstrates that mild hot-water treatment is an effective, substrate-friendly route to enhance TiO2 film wettability and multifunctional performance, enabling the fabrication of self-cleaning and antibacterial coatings on fragile materials such as plastics and textiles. Full article
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