Graphene Oxide-Polysulfone Hollow Fibers Membranes with Synergic Ultrafiltration and Adsorption for Enhanced Drinking Water Treatment

29 Pages Posted: 12 Apr 2022

See all articles by Manuela Melucci

Manuela Melucci

affiliation not provided to SSRN

Massimo Zambianchi

affiliation not provided to SSRN

Sara Khaliha

affiliation not provided to SSRN

Antonio Bianchi

affiliation not provided to SSRN

Francesca Tunioli

affiliation not provided to SSRN

Alessandro Kovtun

Consiglio Nazionale delle Ricerche - Istituto per la Sintesi Organica e Fotoreattività

Maria Luisa Navacchia

affiliation not provided to SSRN

Anastasio Salatino

affiliation not provided to SSRN

Zhenyuan Xia

Chalmers University of Technology

Elena Briñas

Universidad de Castilla-La Mancha

Ester Vázquez

Universidad de Castilla-La Mancha

Davide Paci

affiliation not provided to SSRN

Vincenzo Palermo

affiliation not provided to SSRN

Letizia Bocchi

affiliation not provided to SSRN

Barbara Casentini

affiliation not provided to SSRN

Abstract

Polysulfone-graphene oxide hollow fiber membranes (PSU-GO HFs) with simultaneous adsorption and ultrafiltration capabilities are herein described and proposed for enhanced and simplified Point-of-Use (POU) drinking water purification. The PSU-GO HFs were prepared by phase inversion extrusion by a customized semi-industrial plant and their morphology, surface properties, and porosity were investigated by combined Scanning Electron Microscopy (SEM), contact angle and Raman confocal microscopy, in relation to different GO:PSU ratios (1-5% w/w GO vs PSU) and to the final adsorption-ultrafiltration properties. Filtration modules of PSU-GO HFs of filtering surface (FS) in the range 0,015-0,28 m 2  showed same ultrafiltration capability of PSU-HF standard filters. Synergic adsorption properties were demonstrated by studying the adsorption maximum capacity of ciprofloxacin antibiotic (CIPRO) vs GO ratio in dead end in-out configuration, the standard configuration used for PSU HFs commercial modules. Loading of 3,5% GO vs PSU  was selected as case study, representing the best compromise between performance and GO nanofiller amount. Heavy metals (Pb, Cu and Cr(III)) and polyfluoroalkyl substances (PFAS) removal capabilities from tap water were competitive and in some cases outperformed Granular Activated Carbon (GAC), the standard industrial sorbent. Ciprofloxacin removal from tap water was also under real operational conditions. Moreover, release of GO from working PSU-GO modules was excluded by Surface Enhanced Raman Spectroscopy (SERS) analysis of treated water having the state-of-the-art limit of quantification of 0.1  m g/L for GO nanosheets.

Keywords: Graphene oxide, Polysulfone Hollow fiber, Adsorptive-ultrafiltration membranes, Drinking water treatment, Emerging Contaminants

Suggested Citation

Melucci, Manuela and Zambianchi, Massimo and Khaliha, Sara and Bianchi, Antonio and Tunioli, Francesca and Kovtun, Alessandro and Navacchia, Maria Luisa and Salatino, Anastasio and Xia, Zhenyuan and Briñas, Elena and Vázquez, Ester and Paci, Davide and Palermo, Vincenzo and Bocchi, Letizia and Casentini, Barbara, Graphene Oxide-Polysulfone Hollow Fibers Membranes with Synergic Ultrafiltration and Adsorption for Enhanced Drinking Water Treatment. Available at SSRN: https://ssrn.com/abstract=4081995 or http://dx.doi.org/10.2139/ssrn.4081995

Manuela Melucci (Contact Author)

affiliation not provided to SSRN ( email )

No Address Available

Massimo Zambianchi

affiliation not provided to SSRN ( email )

No Address Available

Sara Khaliha

affiliation not provided to SSRN ( email )

No Address Available

Antonio Bianchi

affiliation not provided to SSRN ( email )

No Address Available

Francesca Tunioli

affiliation not provided to SSRN ( email )

No Address Available

Alessandro Kovtun

Consiglio Nazionale delle Ricerche - Istituto per la Sintesi Organica e Fotoreattività ( email )

Italy

Maria Luisa Navacchia

affiliation not provided to SSRN ( email )

No Address Available

Anastasio Salatino

affiliation not provided to SSRN ( email )

No Address Available

Zhenyuan Xia

Chalmers University of Technology ( email )

Elena Briñas

Universidad de Castilla-La Mancha ( email )

Albacete
Spain

Ester Vázquez

Universidad de Castilla-La Mancha ( email )

Albacete
Spain

Davide Paci

affiliation not provided to SSRN ( email )

No Address Available

Vincenzo Palermo

affiliation not provided to SSRN ( email )

No Address Available

Letizia Bocchi

affiliation not provided to SSRN ( email )

No Address Available

Barbara Casentini

affiliation not provided to SSRN ( email )

No Address Available

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