Cellulose-cyclodextrin co-polymer for the removal of cyanotoxins on water sources

Diego Gomez-Maldonado; Iris Beatriz Vega Erramuspe; Ilari Filpponen; Leena-Sisko Johansson; Salvatore Lombardo; Junyong Zhu; Wim Thielemans; Maria S. Peresin

doi:10.3390/polym11122075

Treesearch

Cellulose-cyclodextrin co-polymer for the removal of cyanotoxins on water sources

Formally Refereed

Authors:

Diego Gomez-Maldonado, Iris Beatriz Vega Erramuspe, Ilari Filpponen, Leena-Sisko Johansson, Salvatore Lombardo, Junyong Zhu, Wim Thielemans, Maria S. Peresin

Year:

2019

Type:

Scientific Journal

Station:

Forest Products Laboratory

DOI:

https://doi.org/10.3390/polym11122075

Source:

Polymers. 11(12). 19 p.

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Abstract

With increasing global water temperatures and nutrient runoff in recent decades, the blooming season of algae lasts longer, resulting in toxin concentrations that exceed safe limits for human consumption and for recreational use. From the different toxins, microcystin-LR has been reported as the main cyanotoxin related to liver cancer, and consequently its abundance in water is constantly monitored. In this work, we report a methodology for decorating cellulose nanofbrils with β-cyclodextrin or with poly(β-cyclodextrin) which were tested for the recovery of microcystin from synthetic water. The adsorption was followed by Quartz Crystal Microbalance with Dissipation monitoring (QCM-D), allowing for real-time monitoring of the adsorption behavior. A maximum recovery of 196 mg/g was obtained with the modifed by cyclodextrin. Characterization of the modifed substrate was confrmed with Fourier Transform Infrared Spectroscopy (FT-IR), X-ray Photoelectron Spectroscopy (XPS), Thermogravimetric Analysis (TGA), and Atomic Force Microscopy (AFM).

Keywords

Bio-based composite, cellulose nanofbrils, β-cyclodextrin, surface chemistry, water treatment, cyanotoxins, microcystin-LR

Citation

Gomez-Maldonado, Diego; Vega Erramuspe, Iris Beatriz; Filpponen, Ilari; Johansson, Leena-Sisko; Lombardo, Salvatore; Zhu, Junyong; Thielemans, Wim; Peresin, Maria S. 2019. Cellulose-cyclodextrin co-polymer for the removal of cyanotoxins on water sources. Polymers. 11(12). 19 p.