Facile strategy toward smart nanocomposite glass nanofiber-reinforced polysiloxane adhesives with superhydrophobic and photoluminescence properties

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2025-01-29 DOI:10.1016/j.jphotochem.2025.116318

Hany M. Abd El-Lateef , Mai M. Khalaf , Manal F. Abou Taleb , Ahmed Mohajja Alshammari , Mohamed Gouda

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Abstract

Smart adhesive was developed toward a simple preparation of photoluminescent and water-resistant products. The formulated adhesive persisted to emit light for up to 90 min after the lighting source was switched off. Rare-earth aluminate (SrAl₂O₄:Eu²⁺,Dy³⁺; SAO) nanoparticles (5–12 nm) and glass nanofibers (GNF) were distributed in liquid volcanized silicone rubber (VSR; polysiloxane) to produce a nanocomposite adhesive. Electrospun glass nanofibers (GNF) were used as a reinforcement agent, displaying diameters of 50–125 nm. SAO was evenly distributed without agglomeration in the polysiloxane matrix by using nanoparticles, allowing the resultant nanocomposite adhesive to be transparent. The applied adhesives exhibited an emission band at 519 nm when excited at 365 nm. According to the SAO concentration, the photoluminescence spectra exhibited either fluorescence or afterglow emission. Photochromism was observed transitioning from translucent to green under an ultraviolet source and yellowish-green in a dark room. The developed adhesives showed scratch and water resistance owing to the incorporation of SAO nanoparticles (NPs) into the polysiloxane matrix. The SAO@VSR nanocomposite exhibited significant durability and photostability. This study demonstrated the viability of industrial production of intelligent adhesives for various uses, such as safety signs and smart windows.

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.