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Spectroscopic Insights into Innovative Materials

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

Deadline for manuscript submissions: 30 June 2025 | Viewed by 560

Special Issue Editor


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Guest Editor
Department of Physics, Federal University of Pará, Belém, Brazil
Interests: materials with negative thermal expansion; nanostructured materials; biological and metal-organic materials

Special Issue Information

Dear Colleagues,

Spectroscopic methods are powerful tools for the analysis and characterization of materials. They provide detailed insights into the electronic structure, chemical composition, and physical chemistry properties of materials, which are essential for their design and synthesis. This Special Issue brings together a collection of articles that highlight the application of various spectroscopic techniques, including but not limited to the following:

  • Infrared (IR) and Raman spectroscopy;
  • Ultraviolet–visible (UV–Vis) spectroscopy;
  • X-ray photoelectron spectroscopy (XPS);
  • Nuclear magnetic resonance (NMR);
  • Electron paramagnetic resonance (EPR).

This Special Issue also covers a wide range of innovative materials, from nanomaterials and polymers to biomaterials and energy storage materials. They showcase how spectroscopy can be used to do the following:

  • Investigate the synthesis and processing of new materials;
  • Characterize the structure and composition of materials;
  • Analyze the dynamics and interactions of material molecules;
  • Monitor the performance and degradation of materials under various conditions.

It is our hope that the research presented here will inspire further innovation and contribute to the development of materials with enhanced properties and applications.

Prof. Dr. Waldeci Paraguassu
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • spectroscopic techniques
  • materials science
  • electronic structure
  • chemical composition
  • surface analysis

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Published Papers (1 paper)

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Research

24 pages, 6160 KiB  
Article
Adsorption of Acetic Acid Vapors by Inorganic–Organic Nano Materials: Implications for the Inhibition of the “Vinegar Syndrome” in 20th Century Motion Picture Films
by Francesca Porpora, Lorenzo Lisi, Emiliano Carretti, Carlotta D’Aleo, Marianna De Sanctis, Samuele Baldini and Luigi Dei
Molecules 2025, 30(6), 1348; https://doi.org/10.3390/molecules30061348 - 17 Mar 2025
Viewed by 331
Abstract
Cellulose acetate (CA) motion picture films are subjected to degradation, especially due to the “vinegar syndrome”, a de-acetylation process catalyzed by high temperature, humidity, and acidity. Acetic acid is released as a by-product of this reaction and acts as a catalyst that triggers [...] Read more.
Cellulose acetate (CA) motion picture films are subjected to degradation, especially due to the “vinegar syndrome”, a de-acetylation process catalyzed by high temperature, humidity, and acidity. Acetic acid is released as a by-product of this reaction and acts as a catalyst that triggers an autocatalytic process. The main aim of this study was to evaluate the use of metal oxide, hydroxide, and carbonate nanoparticles, as well as their composite inorganic–organic systems, for the adsorption of acetic acid and the inhibition of the deacetylation process. Various nanoparticles (Ca(OH)2, ZnO and CaCO3) were compared in terms of their ability to adsorb glacial acetic acid vapors through gravimetry analysis, Fourier Transform Infrared (FTIR) Spectroscopy, X-ray diffraction (XRD), and Thermogravimetric Analysis (TGA). The variation in the size and morphology of the nanoparticles was investigated via Scanning Electron Microscopy (SEM), too. Subsequently, the most promising nanoparticles (ZnO) were incorporated into composite organic–inorganic systems, made of Whatman paper (WP) and polyvinyl alcohol formaldehyde (PVF) xerogels, and their ability to adsorb acetic acid vapors was again evaluated. Finally, the performances of both the pure ZnO nanoparticles and the organic–inorganic composite systems as inhibitors of the “vinegar syndrome” were assessed on artificially degraded motion picture films using a specifically developed and validated multi-analytical protocol. Full article
(This article belongs to the Special Issue Spectroscopic Insights into Innovative Materials)
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