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Novel Organic-Inorganic Hybrid Porous Photochromic Materials

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

Deadline for manuscript submissions: 30 September 2025 | Viewed by 152

Special Issue Editor


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Guest Editor
Department of Chemistry, College of Sciences, Northeastern University, Shenyang 110819, China
Interests: porous materials; ionothermal synthesis; photochromism; inorganic–organic hybird; photothermal materials; harmful ray detection

Special Issue Information

Dear Colleagues,

The synthesis of inorganic–organic hybrid porous photochromic materials with excellent photochemical activity and stability is one of the emerging research hotspots in the field of inorganic functional materials. This Special Issue focuses on the synthesis of inorganic–organic hybrid porous photochromic materials (including zeolites, open-frameworks, MOFs, COFs, HOF, supermolecules, etc.) and related composite materials; the influence of structures and compositions of porous materials; the size and geometric configuration of organic molecules; and the synergy effect between frameworks and organic molecules on the photochromic behaviors, as well as their influence on other properties (photo, electrical, magnetism, etc.) and applications (optical data storage, smart lenses, light sensors, inkless printing, and anticounterfeiting). We welcome research studies regarding the development of novel characterization approaches and calculations for exploring photochromic mechanisms.

We look forward to your submissions.

Dr. Junbiao Wu
Guest Editor

Manuscript Submission Information

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Keywords

  • photochromism
  • porous materials
  • open-frameworks
  • inorganic–organic hybrid
  • electron transfer
  • light sensors
  • inkless printing
  • anticounterfeiting

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Published Papers (1 paper)

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Research

14 pages, 2931 KiB  
Article
Methyl Viologen@β-Zeolite with Absorption/Fluorescence Dual-Mode and Photo/Chemical Synergistic Stimuli-Responsive Chromism
by Jingxuan Han, Shaoning Li, Huihui Li, Yu Li, Jiaqiao Qin, Fuxiang Wang and Qinhe Pan
Molecules 2025, 30(13), 2872; https://doi.org/10.3390/molecules30132872 (registering DOI) - 6 Jul 2025
Abstract
In this work, methyl viologen (MV) was adsorbed into the nanopores of Si/Al H-β-zeolite via cation exchange. The resulting MV@β-zeolite possessed absorption/fluorescence dual-mode and photo/chemical synergistic stimuli-responsive chromism. Owing to the acidic surrounding provided by β-zeolite, the chromism of MV required the synergistic [...] Read more.
In this work, methyl viologen (MV) was adsorbed into the nanopores of Si/Al H-β-zeolite via cation exchange. The resulting MV@β-zeolite possessed absorption/fluorescence dual-mode and photo/chemical synergistic stimuli-responsive chromism. Owing to the acidic surrounding provided by β-zeolite, the chromism of MV required the synergistic stimuli of UV irradiation and a chemical reductant (such as Na2SO3). UV irradiation induced single electron transfer from the chemical reductant to MV@β-zeolite, leading to enhanced absorption at 610 nm together with a daylight color change from pale yellow to blue. Meanwhile, the nanopores of β-zeolite inhibited aggregation-caused quenching of MV, enabling MV to emit cyan fluorescence at 500 nm. After the single electron transfer of the chemical reductant under UV irradiation, the cyan fluorescence of MV@β-zeolite was quenched. Additionally, MV@β-zeolite exhibited a short stimulus response time (250 s) and good color change reversibility. These findings in this work provide valuable insights into the design of multi-mode and synergistic stimuli-responsive viologen-based chromic materials, particularly for applications in secure high-throughput information storage, high-level anti-counterfeiting and multi-target multi-mode sensing. Full article
(This article belongs to the Special Issue Novel Organic-Inorganic Hybrid Porous Photochromic Materials)
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