Nanocellulose Membranes for Plasmon-Enhanced Removal of Organic Pollutants from Water
Sivoney Ferreira de Souza, Christina Beresowski, Sabine Kosmella, João Ameixa, Bhanu Kiran Pothineni, Adrian Keller, Matthias Hartlieb, Andreas Taubert, Ilko Bald
TL;DR
This paper introduces a new water purification membrane using cellulose nanofibers and silver nanoparticles that can efficiently remove organic pollutants when exposed to blue light.
Contribution
The novel contribution is the integration of plasmonic silver nanoparticles into cellulose nanofiber membranes for enhanced pollutant removal via visible light activation.
Findings
The membranes show excellent adsorption capacity and mechanical durability without silver nanoparticle leaching.
Exposure to blue light significantly accelerates the removal of organic pollutants through plasmonic degradation.
Performance tests with methylene blue and vancomycin confirm the effectiveness of the CNF_AgNP composite under visible light.
Abstract
We present multifunctional cellulose nanofiber (CNF) membranes containing in situ-synthesized plasmonic silver nanoparticles (AgNPs) for the efficient removal of organic pollutants from water. These membranes combine the adsorptivity and mechanical strength of CNF with the plasmonic properties of AgNPs, which, when activated by blue light, enable the photocatalytic degradation of organic contaminants such as dyes and pharmaceuticals and thereby enhance their removal from water. The membranes demonstrate excellent adsorption capacity, flexibility, mechanical durability, and reusability and show no AgNP leaching in water, making them ideal for sustainable water treatment applications. Performance tests show significantly higher pollutant removal rates in membranes containing AgNPs, and exposure to blue light further accelerates the removal process, ascribed to the plasmonic decomposition…
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Taxonomy
TopicsAdvanced Cellulose Research Studies · Membrane Separation Technologies · Adsorption and biosorption for pollutant removal