Interfacial plasmon engineering in bamboo/PVA/chitosan nanofibers
Laser-ablated Au nanoparticles for visible-light photocatalytic water treatment
Yasemin Gündoğdu Kabakci (Selçuk University)
Nezihe Mehtap (Selçuk University)
M. A.Basyooni M. Kabatas (TU Delft - Mechanical Engineering, Karlsruhe Institut für Technologie, Selçuk University)
Hamdi Şükür Kiliç (Dokuz Eylul University)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
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 (∙O₂−) and photogenerated holes (h+) are the dominant reactive species, thereby elucidating the SPR-assisted charge-transfer mechanism. These results demonstrate that bamboo-derived, Au-modified 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.
help_outline