Interfacial plasmon engineering in bamboo/PVA/chitosan nanofibers: Laser-ablated Au nanoparticles for visible-light photocatalytic water treatment
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS, cilt.72, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 72
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.colcom.2026.100885
- Dergi Adı: COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Directory of Open Access Journals
- Anahtar Kelimeler: Gold nanoparticles, Bamboo/PVA/chitosan nanofibers, Visible-light photocatalysis, Interfacial plasmonic engineering, Methylene blue degradation, Colloid-nanofiber interface, Sustainable water treatment
- Dokuz Eylül Üniversitesi Adresli: Evet
Özet
Gold nanoparticles were synthesized via surfactant-free laser ablation and incorporated into electrospun bamboo/poly(vinyl alcohol)/chitosan nanofibers for plasmonic photocatalysis. Comprehensive characterization via FE-SEM, FTIR, Raman, TGA, and UV-Vis spectroscopy revealed the synergistic integration of renewable bamboo biocomponents with laser-ablated Au nanoparticles. At pH 10, Bamboo/Au/PVA/CS-2 nanofibers achieved 70.55% methylene blue degradation in 240 min, a 1.8-fold improvement over the PVA/CS baseline (50.27%), with a pseudo-first-order rate constant of 0.0038 min-1. Radical scavenger experiments confirmed that superoxide radicals (center dot O2-) and photogenerated holes (h+) are the dominant reactive species, thereby elucidating the SPR-assisted charge-transfer mechanism. These results demonstrate that bamboo-derived, Aumodified PVA/CS nanofibers represent a promising class of eco-friendly, plasmon-enhanced photocatalysts for sustainable water treatment, establishing an innovative platform for colloid-interface engineering in environmental remediation.