Fabrication of stable silver nanoparticles in anionic hydrogel for the development of an ecofriendly, highly active, and reusable catalyst
Journal of Materials Science, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s10853-026-13688-7
- Dergi Adı: Journal of Materials Science
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Applied Science & Technology Source, Chemical Abstracts Core, Chimica, Compendex, INSPEC, MEDLINE, Public Affairs Index, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO), Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Eskişehir Osmangazi Üniversitesi Adresli: Evet
Özet
Silver nanoparticles exhibit excellent catalytic activity, but a challenge of their controlled fabrication and stability hinders their application on a large scale. This study describes the fabrication of poly (2-acrylamido-2-methylpropane sulfonic acid-co-acrylamide) [p(AMPS-co-AAM)] bulk hydrogel embedded with silver nanoparticles (AgNPs) for its use as catalyst. The bulk hydrogel was synthesized with free radical polymerization method and used as a platform for in situ synthesis and stabilization of AgNPs. The hydrophilicity of the prepared hydrogel was approved by 95.74% of water content at swelling equilibrium. The Fourier transform infrared, scanning electron microscopy, and transition electron microscopy were used for compositional and morphological study of the bare hydrogel and its composite with AgNPs. The embedded AgNPs were found to be well dispersed, spherical shaped, and in narrow size range of 25–40 nm. The prepared composite exhibited excellent catalytic performance in the aqueous reduction of p-nitrophenol (p-NP), achieving a rapid reduction rate constant of 0.5186 min⁻1, thereby demonstrating its high catalytic efficiency. The catalytic reactions were carried in distilled, tap, and river waters, and its performance was found equally well. Reusability studies demonstrated that the catalyst retained approximately 71% of its initial catalytic activity after twelve consecutive cycles, highlighting its excellent durability and potential for repeated practical applications. The shelf-life analysis revealed a 55% loss of activity in 101 days. Overall, this work provides an ecofriendly approach for aqueous environmental remediation through the development of an easily separable, reusable hydrogel-supported nanocatalyst that combines efficient catalytic performance with simple recovery and regeneration.