Water Filtration Membranes Based on Non-Woven Cellulose Fabrics: Effect of Nanopolysaccharide Coatings on Selective Particle Rejection, Antifouling, and Antibacterial Properties
Open Access
- 5 July 2021
- journal article
- research article
- Published by MDPI AG in Nanomaterials
- Vol. 11 (7), 1752
- https://doi.org/10.3390/nano11071752
Abstract
This article presents a comparative study of the surface characteristics and water purification performance of commercially available cellulose nonwoven fabrics modified, via cast coating, with different nano-dimensioned bio-based carbohydrate polymers, viz. cellulose nanocrystals (CNC), TEMPO-oxidized cellulose nanofibers (T-CNF), and chitin nanocrystals (ChNC). The surface-modified nonwoven fabrics showed an improvement in wettability, surface charge modification, and a slight decrease of maximum pore size. The modification improved the water permeance in most of the cases, enhanced the particle separation performance in a wide range of sizes, upgraded the mechanical properties in dry conditions, and showed abiotic antifouling capability against proteins. In addition, T-CNF and ChNC coatings proved to be harmful to the bacteria colonizing on the membranes. This simple surface impregnation approach based on green nanotechnology resulted in highly efficient and fully bio-based high-flux water filtration membranes based on commercially available nonwoven fabrics, with distinct performance for particle rejection, antifouling and antibacterial properties.Funding Information
- Horizon 2020 Framework Programme (Nanotextsurf, 760601)
This publication has 53 references indexed in Scilit:
- Antibacterial activity of chitin, chitosan and its oligomers prepared from shrimp shell wasteFood Hydrocolloids, 2012
- Electrospun Polyethylene Oxide/Cellulose Nanocrystal Composite Nanofibrous Mats with Homogeneous and Heterogeneous MicrostructuresBiomacromolecules, 2011
- Ultrafine Polysaccharide Nanofibrous Membranes for Water PurificationBiomacromolecules, 2011
- TEMPO-oxidized cellulose nanofibersNanoscale, 2010
- Effect of pH and temperature on the adsorption of bovine serum albumin onto titanium dioxideColloids and Surfaces A: Physicochemical and Engineering Aspects, 2008
- Interpretation of Protein Adsorption: Surface-Induced Conformational ChangesJournal of the American Chemical Society, 2005
- Bacterial biofilms: from the Natural environment to infectious diseasesNature Reviews Microbiology, 2004
- Influence of electrostatically bound proteins on the structure of linkage monolayers: adsorption of bovine serum albumin on silver and gold substrates coated with monolayers of 2-mercaptoethanesulphonateVibrational Spectroscopy, 2003
- Adhesion Forces between E. coli Bacteria and Biomaterial SurfacesLangmuir, 1999
- Quartz-crystal microbalance and cyclic voltammetric studies of the adsorption behaviour of serum albumin on self-assembled thiol monolayers possessing different hydrophobicity and polarityBioelectrochemistry and Bioenergetics, 1996