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Amyloid Fibrils Aerogel for Sustainable Removal of Organic Contaminants from Water.
Journal article

Amyloid Fibrils Aerogel for Sustainable Removal of Organic Contaminants from Water.

  • Peydayesh M ETH Zurich, Department of Health Sciences and Technology, 8092, Zurich, Switzerland.
  • Suter MK ETH Zurich, Department of Health Sciences and Technology, 8092, Zurich, Switzerland.
  • Bolisetty S ETH Zurich, Department of Health Sciences and Technology, 8092, Zurich, Switzerland.
  • Boulos S Laboratory of Food Biochemistry, Institute of Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, 8092, Zurich, Switzerland.
  • Handschin S ETH Zurich, Department of Health Sciences and Technology, 8092, Zurich, Switzerland.
  • Nyström L Laboratory of Food Biochemistry, Institute of Food, Nutrition and Health, Department of Health Sciences and Technology, ETH Zurich, 8092, Zurich, Switzerland.
  • Mezzenga R ETH Zurich, Department of Health Sciences and Technology, 8092, Zurich, Switzerland.
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  • 2020-02-07
Published in:
  • Advanced materials (Deerfield Beach, Fla.). - 2020
aerogels
amyloid fibrils
organic pollutants
water
β-lactoglobulin
Adsorption
Amyloid
Benzhydryl Compounds
Benzothiadiazines
Gels
Ibuprofen
Lactoglobulins
Phenols
Water Pollutants, Chemical
Water Purification
English Water contamination by organic pollutants is ubiquitous and hence a global concern due to detrimental effects on the environment and human health. Here, it is demonstrated that amyloid fibrils aerogels are ideal adsorbers for removing organic pollutants from water. To this end, amyloid fibrils prepared from β-lactoglobulin, the major constituent of milk whey protein, are used as building blocks for the fabrication of the aerogels. The adsorption of Bentazone, Bisphenol A, and Ibuprofen, as model pollutants, is evaluated under quasi-static conditions, without use of energy or pressure. Through adsorption by amyloid fibrils aerogel, excellent removal efficiencies of 92%, 78%, and 98% are demonstrated for Bentazone, Bisphenol A, and Ibuprofen, respectively. Furthermore, the maximum adsorption capacity of amyloid fibrils aerogel for Bentazone, Bisphenol A, and Ibuprofen is 54.2, 50.6, and 69.6 mg g-1 , respectively. To shed light on the adsorption equilibrium process, adsorption isotherms, binding constants, saturation limits, and the effect of pH are evaluated. Finally, the regeneration of the aerogel over three consecutive cycles is studied, exhibiting high reusability with no significant changes in its removal performance. These results point at amyloid fibrils aerogels as a sustainable, efficient, and inexpensive technology for alleviating the ubiquitous water contamination by organic pollutants.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/275163
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