Boffa, Vittorio

Bortot Coelho, Fabrício E.

Candelario, Victor

Deganello, Francesca

Ma, Xianzheng

Magnacca, Giuliana

Nurisso, Federica

English

Ce-doped strontium ferrate (Sr0.85Ce0.15FeO3-δ) is a perovskite, which can generate reactive oxygen species for the abatement of water micropollutants with no need of an external light source [1]. Therefore, this perovskite has been used to degrade different water pollutants at mild temperatures, and we have recently couple this technology with membrane distillation [2] and nanofiltration. In this work, we combined this perovskite with a proper amount of graphene oxide in a nanocomposite, achieving enhanced degradation rate in the abatement of a model water pollutant, namely bisphenol A. Hence, nanofiltration membranes were fabricated by depositing thin films of this nanocomposite material over a commercial polyethersulfone ultrafiltration sheet. The membrane was tested with model solutions and a real wastewater effluent, showing rejection &gt; 98% towards bisphenol A and water permeance comparable to commercial nanofiltration membranes. When tested at 50 °C, the membrane showed the ability to degrade bispenol A. The figure presents the bisphenol A concentration in feed and permeate for three replicas of a bisphenol A degradation experiment, making evident the good reproducibility of performances for different membrane samples, also when prepared from separated batches. The data obtained in this work suggest that the new membrane can be conveniently used for treating contaminated wastewaters that have already a thermal content or that can be heated on-site by recovering low-grade waste heat (as for many industrial effluents)

    Aalborg UniversitetA graphene oxide-based nanofiltration membrane for the catalytic abatement oforganic pollutants in wastewaterBoffa, Vittorio; Bortot Coelho, Fabrício E.; Nurisso, Federica; Ma, Xianzheng; Magnacca,Giuliana;  Candelario, Victor ; Deganello, FrancescaPublication date:2021Document VersionPublisher's PDF, also known as Version of recordLink to publication from Aalborg UniversityCitation for published version (APA):Boffa, V., Bortot Coelho, F. E., Nurisso, F., Ma, X., Magnacca, G., Candelario, V., & Deganello, F. (2021). Agraphene oxide-based nanofiltration membrane for the catalytic abatement of organic pollutants in wastewater.Abstract from Euromembrane 2021, Copenhagen, Denmark.General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            - Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            - You may not further distribute the material or use it for any profit-making activity or commercial gain            - You may freely distribute the URL identifying the publication in the public portal -Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: November 19, 2022A graphene oxide-based nanofiltration membrane for the catalytic abatement of organic pollutants in wastewater.  V. Boffaa,*, F. E. Bortot Coelhob,c, F. Nurissob, X. Maa, G. Magnaccab, V. Candelarioc, F. Deganellod  aCenter for Membrane Technology, Department of Chemistry and Bioscience, Aalborg University, Fredrik Bajers Vej 7H, DK-9220 Aalborg East, Denmark. bDipartimento di Chimica and NIS Interdepartmental Centre, Universitá di Torino, Via P. Giuria 7, 10125 Torino, Italy. cLiqtech International A/S, Industriparken 22 C, DK-2750 Ballerup, Denmark dIstituto per lo Studio dei Materiali Nanostrutturati, Consiglio Nazionale delle Ricerche, Via Ugo La Malfa 153, 90146 Palermo, Italy.  Ce-doped strontium ferrate (Sr0.85Ce0.15FeO3-δ) is a perovskite, which can generate reactive oxygen species for the abatement of water micropollutants with no need of an external light source [1]. Therefore, this perovskite has been used to degrade different water pollutants at mild temperatures, and we have recently coupled this technology with membrane distillation [2] and nanofiltration. In this work, we combined this perovskite with a proper amount of graphene oxide in a nanocomposite, achieving enhanced degradation rate in the abatement of a model water pollutant, namely bisphenol A. Hence, nanofiltration membranes were fabricated by depositing thin films of this nanocomposite material over a commercial polyethersulfone ultrafiltration sheet. The membrane was tested with model solutions and a real wastewater effluent, showing rejection > 98% towards bisphenol A and water permeance comparable to commercial nanofiltration membranes. When tested at 50 °C, the membrane showed the ability to degrade bispenol A. The figure presents the bisphenol A concentration in feed and permeate for three replicas of a bisphenol A degradation experiment, making evident the good reproducibility of performances for different membrane samples, also when prepared from separated batches.  The data obtained in this work suggest that the new membrane can be conveniently used for treating contaminated wastewaters that have already a thermal content or that can be heated on-site by recovering low-grade waste heat (as for many industrial effluents). The results presented at this conference were obtained in the frame of two European projects: H2020-MSCA-ITN-2017 (AQUAlity, Grant Agreement n. 765860) and H2020-CIRC-2017TwoStage (Project Ô, Grant Agreement n. 776816). [1] M. L. Tummino, E. Laurenti, F. Deganello, A. Bianco Prevot, G. Magnacca, Revisiting the catalytic activity of a doped SrFeO3 for water pollutants removal: Effect of light and temperature. Appl. Catal. B Environ. 207 (2017) 174–181. [2] K. Janowska, V. Boffa, M. K. Jørgensen, C. A. Quist-Jensen, F. Hubac, F. Deganello, F. E. B. Coelho, and G. Magnacca, “Thermocatalytic membrane distillation for clean water production,” npj Clean Water, 3 (2020) 1–7.              0 2 4 6 8 10 12 14 160246810BPA concentration (mg L-1) Filtration time (h)feedpermeateSEM imageof membrane cross-section

A graphene oxide-based nanofiltration membrane for the catalytic abatement of organic pollutants in wastewater

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A graphene oxide-based nanofiltration membrane for the catalytic abatement of organic pollutants in wastewater

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