Coderch, Gustavo and Cordoba, Alexander and Ramirez, Oscar and Bonardd, Sebastian and Leiva, Angel and Haering, Marleen and Diaz, David Diaz and Saldias, Cesar (2023) Effects of the Solvent Vapor Exposure on the Optical Properties and Photocatalytic Behavior of Cellulose Acetate/Perylene Free-Standing Films. POLYMERS, 15 (13): 2787. ISSN , 2073-4360
Full text not available from this repository. (Request a copy)Abstract
The search to deliver added value to industrialized biobased materials, such as cellulose derivatives, is a relevant aspect in the scientific, technological and innovation fields at present. To address these aspects, films of cellulose acetate (CA) and a perylene derivative (Pr) were fabricated using a solution-casting method with two different compositions. Consequently, these samples were exposed to dimethylformamide (DMF) solvent vapors so that its influence on the optical, wettability, and topographical properties of the films could be examined. The results demonstrated that solvent vapor could induce the apparent total or partial preferential orientation/migration of Pr toward the polymer-air interface. In addition, photocatalytic activities of the non-exposed and DMF vapor-exposed films against the degradation of methylene blue (MB) in an aqueous medium using light-emitting diode visible light irradiation were comparatively investigated. Apparently, the observed improvement in the performance of these materials in the MB photodegradation process is closely linked to the treatment with solvent vapor. Results from this study have allowed us to propose the fabrication and use of the improved photoactivity "all-organic" materials for potential applications in dye photodegradation in aqueous media.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PERYLENE; GENERATION; MOLECULES; films; biobased materials; photodegradation |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 16 Mar 2024 15:00 |
| Last Modified: | 16 Mar 2024 15:00 |
| URI: | https://pred.uni-regensburg.de/id/eprint/60257 |
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