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

Source: Polymers. 11(12). 19 p.

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

Publication Year: 2019  View PDF »

Category: Journal Articles
Associated Research Project(s):   FPL-4709-1B

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

Publication Review Process: Formally Refereed

File size: 3,072 kb(s)

Date posted: 03/11/2020

This publication is also viewable on Treesearch:  view
RITS Product ID: 97239
Current FPL Scientist associated with this product
Zhu, JunYong
Research General Engineer
  

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